Liebert®...Figure 29 Base detail drawing, 625/750kVA Liebert NXL, N+1 multi-module unit without...

Liebert®NXL™ UPS

Installation Manual500 kVA – 750 kVA, 0.9 PF, 60 Hz, Three-phase, Single-module and Mulit-module

Technical Support Site

If you encounter any installation or operational issues with your product, check the pertinent section of this manual to see if the issue can be resolved by following outlined procedures. Visit https://www.VertivCo.com/en-us/support/ for additional assistance.

The information contained in this document is subject to change without notice and may not be suitable for all applications. While every precaution has been taken to ensure the accuracy and completeness of this document, Vertiv assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions. Refer to other local practices or building codes as applicable for the correct methods, tools, and materials to be used in performing procedures not specifically described in this document.

The products covered by this instruction manual are manufactured and/or sold by Vertiv This document is the property of Vertiv and contains confidential and proprietary information owned by Vertiv. Any copying, use or disclosure of it without the written permission of Vertiv is strictly prohibited.

Names of companies and products are trademarks or registered trademarks of the respective companies. Any questions regarding usage of trademark names should be directed to the original manufacturer.

TABLE OF CONTENTSIMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.0 MECHANICAL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.2 Preliminary Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.3 Environmental Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3.1 UPS Room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.3.2 Storing the UPS and Batteries for Delayed Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4 Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.4.1 Moving the Cabinets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.4.2 Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.4.3 Raised-Floor Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.4.4 Kick Plate Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.4.5 Special Considerations for 1+N Parallel Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.5 System Composition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.6 Cable Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.0 UPS ELECTRICAL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.1 External Protective Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.2 Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.3 Sizing the Input Breaker feeding a Liebert® NXL™ UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.3.1 Power Cable Connection Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.4 Control Cable and Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.4.1 Dry Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132.4.2 Multi-Module Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152.4.3 Remote Input Breaker (RIB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172.4.4 Inverter Output Breaker (IOB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.5 Digital LBS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .202.6 Configuring Neutral and Ground Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.6.1 Four-Wire Input connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212.6.2 Three-Wire Input connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212.6.3 Preferred Grounding Configuration, Battery Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222.6.4 Multi-Module Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222.6.5 High Resistance Ground Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.7 Grounding Diagrams, Single- and Multi-Module Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

3.0 OPTIONAL EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .253.1 Single-Module System Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

3.1.1 Matching Maintenance Bypass Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253.1.2 Battery Temperature Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253.1.3 Matching Liebert® NXL™ Battery Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253.1.4 Matching Module Battery Disconnect—MBD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253.1.5 Load Bus Synch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253.1.6 Remote Alarm Status Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

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3.2 Communication and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .253.2.1 Alber® Monitoring System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253.2.2 Programmable Relay Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .263.2.3 Input Contact Isolator Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

4.0 INSTALLATION DRAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314.1 Programmable Relay Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

5.0 SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

FIGURESFigure 1 Cabinet arrangement—Liebert NXL, battery cabinets, maintenance bypass cabinet.

6Figure 2 Cabinet EMI plates - 625kVA and 750kVA only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Figure 3 Kick plate and filter locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Figure 4 Low-voltage cable installation—top entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Figure 5 External Interface Board connections layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Figure 6 Inter-Module Communication Board wiring diagram—Multi-modules . . . . . . . . . . . . . . 12Figure 7 Remote Input Breaker diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Figure 8 Remote Output Breaker diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Figure 9 Inter-Module Communication Board wiring diagram—Digital LBS. . . . . . . . . . . . . . . . . . 16Figure 10 Grounding diagram, three-wire single-module system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Figure 11 Grounding diagram, four-wire single-module system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Figure 12 Grounding diagram, three-wire multi-module system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Figure 13 Grounding diagram, four-wire multi-module system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20Figure 14 Control wiring, Programmable Relay Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22Figure 15 Programmable relay board dialog box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23Figure 16 Input contact isolator dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24Figure 17 Optional Input Contact Isolator Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25Figure 18 Main components, 500kVA Liebert NXL SMS and 1+N multi-module unit with static

bypass26Figure 19 Outline drawing, Liebert NXL 500kVA UPS SMS and 1+N multi-module unit with stat-

ic bypass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 20 Input terminal details, Liebert NXL 500kVA UPS, SMS and 1+N multi-module unit with staticbypass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Figure 21 Output terminal details, Liebert NXL 500kVA UPS, SMS and 1+N multi-module unit with static bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

Figure 22 Base drawing, Liebert NXL 500kVA UPS, SMS and 1+N multi-module unit with static bypass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Figure 23 Field connections, shipping split 500kVA Liebert NXL, multi-module or SMS with static bypass, Page 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 24 Field connections, shipping split 500kVA Liebert NXL, multi-module or SMS with static bypass, Page 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

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Figure 25 Main components, 625/750kVA Liebert NXL, N+1 multi-module unit without static bypass34

Figure 26 Main components, 625/750kVA Liebert NXL UPS, SMS and 1+N multi-module unit with static bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

Figure 27 Outline drawing, 625/750kVA Liebert NXL, N+1 multi-module unit without static by-pass36

Figure 28 Outline Drawing, 625/750kVA Liebert NXL, SMS and 1+N multi-module unit with stat-ic bypass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Figure 29 Base detail drawing, 625/750kVA Liebert NXL, N+1 multi-module unit without static bypass38

Figure 30 Base Drawing, 625/750kVA Liebert NXL, SMS and 1+N multi-module unit with static bypass39

Figure 31 Input terminal detail, 625/750kVA Liebert NXL, N+1 multi-module unit without static bypass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Figure 32 Input terminal detail, 625/750kVA Liebert NXL, SMS and 1+N multi-module unit with staticbypass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 33 Output terminal detail, 625/750kVA Liebert NXL, N+1 multi-module unit without stat-ic bypass, cont’d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

Figure 34 Output terminal detail, 625/750kVA Liebert NXL, SMS and 1+N multi-module unit with static bypass, cont’d. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

Figure 35 Shipping split 625/750kVA Liebert NXL without static bypass . . . . . . . . . . . . . . . . . . . . 44Figure 36 Shipping split 625/750kVA Liebert NXL without static bypass (continued) . . . . . . . 46Figure 37 Shipping Split, 625/750kVA Liebert NXL, SMS and 1+N multi-module unit with static

bypass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Figure 38 Shipping Split, 625/750kVA Liebert NXL, SMS and 1+N multi-module unit with static

bypass, continued . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50Figure 39 Single-input wire cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52Figure 40 Alternate Liebert NXL 500kVA bottom cable entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53Figure 41 Control wiring, Programmable Relay Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54Figure 42 Inverter overload data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59Figure 43 Bypass overload data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

TABLESTable 1 UPS input dry contacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Table 2 UPS control contacts with global maintenance bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Table 3 UPS control contacts to remote status panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Table 4 UPS control contacts with battery cabinet or module battery disconnect . . . . . . . . . . 11Table 5 Parallel from UPS module Inter-Module Communication Board to other Inter-Module

Communication Board in system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Table 6 RIB UV coil, aux. contacts from UPS RIB CB interface board to remote CB1 . . . . . . . . . 14Table 7 Remote IOB contacts from remote breaker to UPS IOB CB interface board . . . . . . . . . 15

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Table 8 Wire size, length for digital LBS connection of UPS Inter-Module Communication Boards16

Table 9 Programmable Relay Board pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22Table 10 Input Contact Isolator Board pre-assigned values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25Table 11 Input Contact Isolator Board control wiring connections . . . . . . . . . . . . . . . . . . . . . . . . . . .25Table 12 Programmable Relay Board pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54Table 13 Liebert NXL UPS specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55Table 14 Current ratings—rectifier input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56Table 15 Current ratings—bypass input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57Table 16 Current ratings—output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57Table 17 Current ratings—battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57Table 18 Recommended conduit and cable sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58Table 19 Recommended torque values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61Table 20 Recommended lug sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

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IMPORTANT SAFETY INSTRUCTIONSSAVE THESE INSTRUCTIONS

This manual contains important instructions that should be followed during installation of your Liebert® NXL™ UPS. Read this manual thoroughly, paying special attention to the sections that apply to your installation, before working with the UPS. Retain this manual for use by installing personnel.

WARNINGRisk of electrical shock. Can cause personal injury or death.This UPS has several circuits that are energized with high DC as well as AC voltages. Check for voltage with both AC and DC voltmeters before working within the UPS. Check for voltage with both AC and DC voltmeters before making contact.Only properly trained and qualified personnel wearing appropriate safety headgear, gloves, shoes and glasses should be involved in installing the UPS or preparing the UPS for installation. When performing maintenance with any part of the equipment under power, service personnel and test equipment should be standing on rubber mats.In case of fire involving electrical equipment, use only carbon dioxide fire extinguishers or those approved for use in fighting electrical fires.Extreme caution is required when performing installation and maintenance.Special safety precautions are required for procedures involving handling, installation and maintenance of the UPS system. Observe all safety precautions in this manual before handling or installing the UPS system. Observe all precautions in the Operation and Maintenance Manual, SL-25425, before as well as during performance of all maintenance procedures. Observe all DC safety precautions before working on or near the DC system.

WARNINGRisk of heavy unit falling over. Improper handling can cause equipment damage, injury or death.Exercise extreme care when handling UPS cabinets to avoid equipment damage or injury to personnel. The UPS module weight is up to 13,800lb. (6260kg).

Locate center of gravity symbols and determine unit weight before handling each cabinet. Test lift and balance the cabinets before transporting. Maintain minimum tilt from vertical at all times.Slots at the base of the module cabinets are intended for forklift use. Base slots will support the unit only if the forks are completely beneath the unit.Read all of the following instructions before attempting to move, lift, or remove packaging from unit, or prepare unit for installation.

Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 1

NOTICEThis unit complies with the limits for a Class A digital device, pursuant to Part 15 Subpart J of the FCC rules. These limits provide reasonable protection against harmful interference in a commercial environment. This unit generates, uses and radiates radio frequency energy and, if not installed and used in accordance with this instruction manual, may cause harmful interference to radio communications. Operation of this unit in a residential area may cause harmful interference that the user must correct at his own expense.

WARNINGRisk of electrical shock and fire. Can cause equipment damage, personal injury or death.Under typical operation and with all UPS doors closed, only normal safety precautions are necessary. The area around the UPS system should be kept free of puddles of water, excess moisture and debris.Only test equipment designed for troubleshooting should be used. This is particularly true for oscilloscopes. Always check with an AC and DC voltmeter to ensure safety before making contact or using tools. Even when the power is turned Off, dangerously high potential electric charges may exist at the capacitor banks and at the DC connections.All wiring must be installed by a properly trained and qualified electrician. All power and control wiring must comply with all applicable national, state and local codes.One person should never work alone, even if all power is disconnected from the equipment. A second person should be standing by to assist and to summon help in case of an accident.

NOTEMaterials sold hereunder cannot be used in the patient vicinity (e.g., use where UL, cUL or IEC 60601-1 is required). Medical applications such as invasive procedures and electrical life support equipment are subject to additional terms and conditions.


1.0 MECHANICAL INSTALLATION1.1 IntroductionThis section describes the requirements that must be taken into account when planning the positioning and cabling of the Liebert® NXL™ uninterruptible power supply and related equipment.This chapter is a guide to general procedures and practices that should be observed by the installing personnel. The particular conditions of each site will determine the applicability of such procedures.

NOTICEThree-phase input supply required.The standard Liebert® NXL™ UPS is suitable for connection to three-phase, four-wire (+ Earth) TN-C, TN-S, IT-G or IT-IG, or three-phase, three-wire plus ground IT-UG.If the unit is used with an IT power system, a 4-pole disconnect device must be included as part of building installation.

NOTICEDo not apply electrical power to the UPS equipment before the arrival of the commissioning engineer.

1.2 Preliminary ChecksBefore installing the UPS, please carry out the following preliminary checks:

• Visually examine the UPS equipment for transit damage, both internally and externally. Report any damage to the shipper immediately.

• Verify that the correct equipment is being installed. The equipment supplied has an identification tag on the interior doors reporting the type, size and main calibration parameters of the UPS.

• Verify that the UPS room satisfies the environmental conditions stipulated in the equipment specification, paying particular attention to the ambient temperature and air exchange system.

WARNINGRisk of electrical shock. Can cause injury or death.Special care must be taken when working with the batteries associated with this equipment. When they are connected together, the battery terminal voltage will exceed 400VDC and is potentially lethal.

NOTEAll equipment not referred to in this manual is shipped with details of its own mechanical and electrical installation.


1.3 Environmental Considerations1.3.1 UPS RoomThe UPS module is intended for indoor installation and should be located in a cool, dry, clean-air environment with adequate ventilation to keep the ambient temperature within the specified operating range (see Environmental Parameters in Table 13).The Liebert® NXL™ UPS is cooled with the aid of internal fans. To permit air to enter and exit and prevent overheating or malfunctioning, do not cover the ventilation openings.

The Liebert® NXL™ UPS is equipped with air filters located behind the front doors. A schedule for inspection of the air filters is required. The period between inspections will depend upon environmental conditions.When bottom entry is used, the conduit plate must be installed.

1.3.2 Storing the UPS and Batteries for Delayed InstallationIf the Liebert® NXL™ system will not be installed immediately, it must be stored indoors in a clean, dry and cool location (see Environmental Parameters in Table 13). If the UPS includes batteries, either internally or in a battery cabinet, the batteries’ requirements will dictate the storage conditions. Batteries should be unpacked, installed and charged as soon as possible after delivery.

NOTICERisk of failure to properly charge batteries. Can cause permanent damage to batteries and void the warranty.

Batteries will self-discharge during storage. Batteries must be recharged as recommended by the battery manufacturer.

A notice of “Charge Before Date” is affixed to each unit that has batteries inside. The “Charge Before Date” is calculated based on the batteries being stored at 77°F (25°C). Storage at a higher temperature will increase the rate of self-discharge, requiring earlier recharge. Consult the battery manufacturer on how to determine when the batteries need to be recharged.

1.4 PositioningThe cabinet is structurally designed to handle lifting from the base.Access to the power terminals, auxiliary terminal blocks and power switches is from the front.The door can be opened to give access to the power connection bars, auxiliary terminal blocks and power isolators. Front door can be opened at 180 degrees, and interior doors can be removed for more flexibility in installations.

NOTETo ensure proper airflow, the unit must be installed only on a solid surface made of a noncombustible material, such as concrete.

NOTEThe UPS is suitable for mounting on concrete or other non-combustible surface only.

NOTEThe UPS must be placed a solid surface. There must be no openings in the surface except those required for conduit landing areas. All provided kick plates must be installed.


1.4.1 Moving the CabinetsThe route to be travelled between the point of arrival and the unit’s position must be planned to make sure that all passages are wide enough for the unit and that floors are capable of supporting its weight (for instance, check that doorways, lifts, ramps, etc. are adequate and that there are no impassable corners or changes in the level of corridors).Ensure that the UPS weight is within the designated surface weight loading (kg/cm2) of any handling equipment. For weight details, see Table 13.The UPS can be handled with a forklift or similar equipment. Ensure any lifting equipment used in moving the UPS cabinet has sufficient lifting capacity. When moving the unit by forklift, care must be taken to protect the panels. Do not exceed a 15-degree tilt with the forklift. Bottom structure will support the unit only if the forks are completely beneath the unit.Handling with straps is not authorized.

1.4.2 ClearancesThe Liebert® NXL™ has no ventilation grilles at either side or at the rear of the UPS. Clearance around the front of the equipment should be sufficient to enable free passage of personnel with the doors fully opened. It is important to leave a distance of 24in (610mm) between the top of the UPS and any overhead obstacles to permit adequate circulation of air coming out of the unit.

1.4.3 Raised-Floor InstallationsIf the equipment is to be located on a raised floor, it should be mounted on a pedestal suitably designed to accept the equipment point loading. Refer to the base view to design this pedestal. The top of the pedestal must be solid.

1.4.4 Kick Plate InstallationKick plates must be installed. If the unit is to be installed in a position that does not permit access to rear kick plates, then the kick plates must be installed before the unit is placed in its final position.

WARNINGRisk of heavy unit falling over. Improper handling can cause equipment damage, injury or death.Because the weight distribution in the cabinet is uneven, use extreme care while handling and transporting. Take extreme care when handling UPS cabinets to avoid equipment damage or injury to personnel.The UPS module weight is up to 13,800lb. (6260kg).Locate center of gravity symbols and determine unit weight before handling each cabinet. Test lift and balance the cabinets before transporting. Maintain minimum tilt from vertical at all times.

NOTEThe UPS must be placed on a solid surface. There must be no openings in the surface except those required for conduit landing areas. All provided kick plates must be installed.


1.4.5 Special Considerations for 1+N Parallel SystemsConsider the grounding configuration of your system before finalizing module placement See 2.6 - Configuring Neutral and Ground Connections.Vertiv recommends matching the impedance in the bypass path of paralleled systems as closely as possible.The impedance mismatch can be minimized by controlling the wiring length of each unit. The design and the layout of the UPS system and associated panels and cabling should be examined closely to ensure that cable lengths and impedances are closely matched. The Liebert® 1+N UPS module is supplied with a sharing reactor to minimize the impact of cable impedance mismatch.The cabling impedance must be carefully controlled to ensure good bypass current sharing.For Liebert® NXL™ Systems, the cabling impedances must be within 10% from maximum to minimum. If the cabling impedances need to be greater than 10%, contact your Vertiv representative to calculate whether the system will result in an overload condition when operating on bypass.When bringing the 1+N system on-line for the first time or after removing one unit, Vertiv recommends checking the bypass current mismatch. To check the bypass current mismatch:

1. Place a load on the bypass of each UPS module.2. View the output current of each unit.The accuracy of the currents displayed on the UPS module is sufficient for this check. If the mismatch is greater than 10%, the bypass impedances must be balanced or the load must be limited to less than the maximum rating.

1.5 System CompositionA UPS system can comprise a number of equipment cabinets, depending on the individual system design requirements: e.g., UPS cabinet, battery cabinet, maintenance bypass cabinet. In general, all the cabinets used in a particular installation are of the same height. Refer to the drawings provided in 4.0 - INSTALLATION DRAWINGS for the positioning of the cabinets as shown in Figure 1.

1.6 Cable EntryCables can enter the UPS cabinet from bottom or top into the Input/Output (I/O) section of the unit; see the figures in 4.0 - INSTALLATION DRAWINGS.


Figure 1 Cabinet arrangement—Liebert® NXL™, battery cabinets, maintenance bypass cabinet

Liebert®

NXL™

UPS

Liebert®

NXL™

UPS

Maintenance BypassCabinet

(Matching)

BatteryCabinet

(Matching)

Liebert®

NXL™

UPS

Maintenance BypassCabinet

(Matching)

AdditionalBattery

Cabinet(s)(Matching)

BatteryCabinet

(Matching)

Liebert®

NXL™

UPS

AdditionalBattery


BatteryCabinet

(Matching)

Liebert®

NXL™

UPS

AdditionalBattery


The side panels and hangers must be removed before the cabinets can be bolted together.

Note: Battery cabinets can be bolted to the right of the UPS. However, the cabling must be


2.0 UPS ELECTRICAL INSTALLATIONThis chapter provides guidelines for qualified installers who must have knowledge of local wiring practices pertaining to the equipment to be installed.

2.1 External Protective DevicesFor safety, it is necessary to install circuit breakers in the input AC supply and external battery system. Given that every installation has its own characteristics, this section provides guidelines for qualified installation personnel with knowledge of operating practices, regulatory standards and the equipment to be installed.External overcurrent protection must be provided. See Table 13 - Liebert® NXL™ UPS specifications for overload capacity.

2.2 Power CablesThe UPS requires both power and control cabling. All control cables, whether shielded or not, should be run separately from the power cables in metal conduits or metal ducts that are electrically bonded to the metalwork of the cabinets to which they are connected.The cable design must comply with the voltages and currents in Tables 14 through17, follow local wiring practices and take into consideration the environmental conditions (temperature and physical support media), room temperature and conditions of installation of the cable and system’s overload capacity (see 5.0 - SPECIFICATIONS).

When sizing battery cables, a maximum volt drop of 2VDC is permissible at the current ratings given in Table 17.

WARNINGRisk of electrical shock. Can cause injury or death.The UPS contains high DC as well as AC voltages. Check for voltage with both AC and DC voltmeters before working within the UPS.

Only properly trained and qualified personnel wearing appropriate safety headgear, gloves, shoes and glasses should be involved in installing the UPS or preparing the UPS for installation.

WARNINGRisk of electrical shock. Can cause injury or death.Before cabling the UPS, ensure that you are aware of the location and operation of the external isolators that connect the UPS input/bypass supply to the power distribution panel.Check that these supplies are electrically isolated, and post any necessary warning signs to prevent their inadvertent operation.


The following are guidelines only and are superseded by local regulations and codes of practice where applicable:

• Take special care when determining the size of the neutral cable (grounded conductor), because current circulating on the neutral cable may be greater than nominal current in the case of non-linear loads. Refer to the values in Table 13.

• The grounding conductor should be sized according to the fault rating, cable lengths, type of protection, etc. The grounding cable connecting the UPS to the main ground system must follow the most direct route possible.

• Consideration should be given to the use of paralleled smaller cables for heavy currents, as this can ease installation considerably.

• AC and DC cables must be run in conduits according to local codes, national codes and standard best practices. This will prevent creation of excess EMI fields.

2.3 Sizing the Input Breaker feeding a Liebert® NXL™ UPSThe rectifier nominal input current value (Table 14) is based on providing enough power to operate the inverter at full rated load when the input voltage is nominal. The published rectifier maximum input current value is based on the maximum input current limit setting of 125%.The recommended input breaker ampacity is based on the NEC calculation for a branch circuit with the current limit set at the maximum value. The calculation for a 100% rated breaker is 100% of the nominal current (continuous) plus 100% of the difference between the nominal and the maximum currents (noncontinuous). The rectifier input current limit can be adjusted from 25% to 125% of the nominal value. This setting is only accessible to a factory-trained service engineer. The effect of changing this setting is similar to that of changing the setting of the trip unit on a solid state circuit breaker. With a lower current limit setting the calculation for the branch circuit will result in a lower value.The input current limit should not be set less than 105% of the current needed to support the inverter at full load for normal operation. This results in sufficient power to recharge the battery in a reasonable time and to operate over the published input voltage range.2.3.1 Power Cable Connection ProcedureThe rectifier input, bypass, output and battery power cables (all require lug-type terminations) are connected to busbars in the I/O sections (refer to 4.0 - INSTALLATION DRAWINGS).Equipment GroundThe equipment ground busbar is in the I/O sections as shown in (refer to 4.0 - INSTALLATION DRAWINGS). The grounding conductor must be connected to the ground busbar and bonded to each cabinet in the system.All cabinets and cabling should be grounded in accordance with local regulations.

NOTEProper grounding reduces problems in systems caused by electromagnetic interference.


Once the equipment has been positioned and secured, connect the power cables as described below (refer to the appropriate cable connection drawing in 4.0 - INSTALLATION DRAWINGS):

1. Verify that the UPS equipment is isolated from its external power source and all the UPS power isolators are open. Check that these supplies are electrically isolated and post any necessary warning signs to prevent their inadvertent operation.

2. Open exterior and interior panels on the front of the I/O sections.3. Connect the ground and any necessary main bonding jumper to the equipment ground busbar located in

the I/O sections.4. Make power connections and tighten the connections to the proper torque.Ensure correct phase rotation.

5. For control connection details, see 2.4 - Control Cable and Communication.

6. Close and secure the interior and exterior doors.7. Attach the cabinet EMI plates to the top of the UPS at each shipping split (625kVA or 750kVA only). See

Figure 2.8. Attach the kick plates and filters to the bottom of the unit. See Figure 3.

Figure 2 Cabinet EMI plates - 625kVA and 750kVA only

WARNINGFailure to follow adequate grounding procedures can result in electric shock hazard to personnel, or the risk of fire, should a ground fault occur.All operations described in this section must be performed by properly trained and qualified electricians or technical personnel. If any difficulties are encountered, contact Vertiv. See the back page of this manual for contact information.The grounding and neutral bonding arrangement must be in accordance with local and national codes of practice.

WARNINGRisk of electrical shock. Can cause injury or death.If the load equipment will not be ready to accept power on the arrival of the commissioning engineer, ensure that the system output cables are safely isolated at their termination.

WARNINGRisk of electrical shock. Can cause injury or death.When connecting the cables between the battery extremities to the circuit breaker, always connect the circuit breaker end of the cable first.

NOTE If fault bracing brackets were removed during installation, they MUST be replaced.

Note location

of larger cutouts.

Orient ground plate

as shown.

A

Mounting

Hardware

(Supplied)

Installed at Each Shipping Split Detail A


Figure 3 Kick plate and filter locations

Figure 4 500-kVA Models Low-voltage cable installation—top entry

NOTEKick plates must be installed. If the unit is to be installed in a position that does not permit access to rear kick plates, then the kick plates must be installed before the unit is placed in its final position.

Install Factory-Supplied

Bolt, Lockwasher and

Washer, 4 Places,

Front Side



Washer, 4 Places,

Rear Side



Washer, 2 Places

Each Side



Washer, 2 Places,

Each Side

FRONT

Kickplate

Kickplate

REAR

Kickplate

Kickplate

Kickplate

D

DETAIL D

E

DETAIL E

G

DETAIL G

F

Cable Entry


Figure 5 625 - 750-kVA Models Low-voltage cable installation—top entry

2.4 Control Cable and CommunicationBased on your site’s specific needs, the UPS may require auxiliary connections to manage the battery system (external battery circuit breaker), communicate with a personal computer or provide alarm signaling to external devices, or for Remote Emergency Power Off (REPO). The External Interface Board, arranged for this purpose, is next to the option box in the Rectifier section (refer to 4.0 - INSTALLATION DRAWINGS). The contacts are rated for 250VAC @ 2A.Figure 6 External Interface Board connections layout

Low-voltage cables can be install through the top of each unit. The entry conduit landing plate is shipped inverted.

To install, remove conduit plate, flip and reinstall. Removal of side plate is for access to pull wires.

REMOVE PLATES FLIP PLATES INSTALL

P66C P99C

TB0823

EPOSTATUS

TB0829

EXTERNALCAN

TB1154B TB1154A

TB0825

TB0824

TB0826TB0820 TB0818

TB0817

TB0819

TB0816

TB0830

TB035TB0821

P0801

TB0811

TB0810

TB0813

TB0812

TB0815

P0832P0831

P0808

OPTPS

INT BATTCAN

EXT BATT CAN

REPO

J4

REPOFORM C

LBS VOLTAGE

EXTERNALCAN MOB

MIB

RIB

MBB

BIB

KEY STATUS

INV CNTRLN

RECT CNTL

BYP CNTL

ON GEN

ACT FILTSTATUS

BATT GNDFLT

ACT FILTCNTL

MAINT BYPENABLE

AUX SPARETEMP

J5

BATT MTR OP

TB1156


2.4.1 Dry Contacts

NOTEIf connection to more than one module is required, use a separate, isolated contact for each module.

Table 1 UPS input dry contacts

Item

Terminal

BlockPin

Connects to(Description of External Item)

Wire Size/Max Length

Remote EPOInput Form C

TB0824

1 REPO Switch, normally open contact

14AWG/500ft.(150m)

2 REPO Switch, common contact

3REPO Switch, normally closed contact, set jumperJ5: 1-2 to enable, 2-3 to disable

On GeneratorInput Form C TB0816

1 On Generator switch, closed = On Generator

2 On Generator switch, common

3 On Generator switch, closed = Not On Generator

Table 2 UPS control contacts with battery cabinet or module battery disconnect

Item

Terminal

BlockPin


Wire Size/Max Length

CAN Bus and24V Power Supply

TB1154A

1 Battery Interface Board TB1154-118 AWG1000ft.(300m)

2 Battery Interface Board TB1154-2



Table 3 UPS control contacts with global maintenance bypass

Item

Terminal

BlockPin


Wire Size/Max

Length

MaintenanceIsolation Breaker (MIB) Form C1

TB0811

1 CB aux. contact, closed = CB is closed 14AWG/500ft.

(150m)2 CB aux. contact, common

3 CB aux. contact, closed = CB is open

Maintenance BypassBreaker (MBB) Form C1

TB0813



3 CB aux. contact, closed = CB is open

Maintenance BypassEnable Form C1

TB0821

1 Maintenance Bypass Cabinet,closed = load not on inverter 14AWG/500

ft.(150m)

2 Maintenance Bypass Cabinet, common

3 Maintenance Bypass Cabinet, closed = load on inverter

Remote EPO Input1 TB0825

1 REPO Switch, normally open contact 14AWG/500ft.

(150m)2 REPO Switch, common contact

Key Status InputForm C1,3

TB0820

1 Key status switch, closed = key removed 14AWG/500ft.

(150m)2 Key status switch, common

3 Key status switch, closed = key inserted


Module Output Breaker(MOB) Form C2

TB0815



3 CB aux. contact, closed = CB is open1. For 1+N systems with a maintenance Bypass, these auxiliary contacts must be run to each module from an

isolated source.2. For 1+N systems, these breaker Aux contacts go to the UPS that they are associated with.3. Key Status Input can be either Form-C, N.O. or N.C. contact

Table 3 UPS control contacts with global maintenance bypass (continued)

Item

Terminal

BlockPin


Wire Size/Max

Length


2.4.2 Multi-Module CommunicationParalleling cables that connect the module to the system are connected to terminals P3101 and P3103 on the Inter-Module Communication (IMC) board (refer to 4.0 - INSTALLATION DRAWINGS).

Table 4 UPS control contacts to remote status panel

ItemTerminal

Block PinConnects to

(Description of External Item)Wire Size/

Max Length

CAN Bus and 24VPower Supply TB0829

1 Remote Status Panel TB-2

18AWG/1000ft.(300m)

2 Remote Status Panel TB-13 Remote Status Panel TB-34 Remote Status Panel TB-4

Table 5 Parallel from UPS module Inter-Module Communication Board to other Inter-Module Communication Board in system

Terminal DesignationSignal Name

Wire Size/ Max LengthFrom To

Primary ConnectionsP3101-1 P3101-1 Share CAN +24V

1000ft.(300m)

P3101-2 P3101-2 Share CAN commonP3101-3 P3101-3 System CAN +24VP3101-4 P3101-4 System CAN commonP3101-5 P3101-5 SER synch CAN+24VP3101-6 P3101-6 SER synch CAN commonP3101-7 P3101-7 Ground - Drain Wire

P3101-14 P3101-14 GroundP3101-8 P3101-8 PWM synch CAN +24VP3101-9 P3101-9 PWM synch CAN commonP3101-10 P3101-10 MMS synch CAN +24VP3101-11 P3101-11 MMS synch CAN common


Figure 7 Inter-Module Communication Board wiring diagram—Multi-modules

Redundant ConnectionsP3103-1 P3103-1 Redundant share CAN +24V

1000ft.(300m)

P3103-2 P3103-2 Redundant share CAN commonP3103-3 P3103-3 Redundant system CAN +24VP3103-4 P3103-4 Redundant system CAN commonP3103-5 P3103-5 Redundant SER synch CAN +24VP3103-6 P3103-6 Redundant SER synch CAN commonP3103-7 P3103-7 Ground - Drain Wire

P3103-14 P3103-14 GroundP3103-8 P3103-8 Redundant PWM synch CAN +24VP3103-9 P3103-9 Redundant PWM synch CAN commonP3103-10 P3103-10 Redundant MMS synch CAN +24VP3103-11 P3103-11 Redundant MMS synch CAN common

1. Belden 810x or Belden 89901 cables are the only approved cables.2. Belden 89901 cable can be used for underground installations.3. If using multiple parallel cables for each run, all cables must be run in the same conduit.4. Each cable group should be run in a separate grounded conduit to ensure redundancy.5. The maximum lengths must include all the parallel cables from the first module to the last module. The primary and

redundant cable lengths can be counted separately.6. The ground pins on the Inter-Module Communication Board (Pins 7 and 14) are connected together on the board. If using

cable with only one (1) drain wire, then connect the ground (drain wire) to Pin 7.7. Care must be taken so drain wire does not touch any other component in module.8. Attach control wires to side of control door where Inter-Module Board (IMC) is attached. Do not run wires across IMC board.

Table 5 Parallel from UPS module Inter-Module Communication Board to other Inter-Module Communication Board in system (continued)



UPS 1 UPS 2 UPS 3

P3103

P3101

P3103

P3101

P3103

P3101

IMC02-806730-xx

IMC02-806730-xx

IMC02-806730-xx


2.4.3 Remote Input Breaker (RIB)For systems that use Remote Input Breakers (RIB), the controls for the Aux contacts, UVR, Motor Operator (optional) and voltage sense will go between the Remote breaker and the UPS Input I/O section. See Figure 8.

Figure 8 Remote Input Breaker diagram

A

B

C

E

RIB10A 10A 10A

IN_LINE_A

IN_LINE_B

IN_LINE_C

INPUT EMI

FILTER

IN_LOAD_A

IN_LOAD_B

IN_LOAD_C

A

B

C

A

B

C

LINE LOADV_IN_R_A

V_IN_R_B

V_IN_R_C

4 CB1_COIL_RTN

3_CB1_NO (CB CLOSED )

2_CB1_NC (CB OPEN )

5 CB1_COIL

1_CB1_COM

Inside UPS Cabinet

RIB

UVR Coil

(48VDC)

RIB Status

Contacts

120-240VAC

Close

RIB

RCB1ElectricalOperator

120-240VAC

(supplied by

swichgear vendor)

5_MTR_OP_CLOSE

2_MTR_OP_ENABLE

Circuit Breaker

Interface Board

02-806711-01

Inside Switchgear

To Customer

Input

Terminals

12

12

12

RIB-1

1

1Fuses should be 10A class CC or J type time delay

fuse2

Electrical operator power provided by switchgear

vendor and shall be powered from line side of RIB

TB1

TB1-1

TB1-2

TB1-3

2

TB1101

TB1102


RIB must be Listed UL 489 (Molded Case Circuit Breaker) or UL 1066 (Low Voltage AC Power Circuit Breaker) that are required to be used in UL-listed switchgear or switchboards. The circuit breaker must have a short-time rating not exceeding 480V at 150K Amperes, for 5 cycles.See Table 14 for required current ratings.

2.4.4 Inverter Output Breaker (IOB)For systems that use Inverter Output Breakers (IOB), the controls for the Aux contacts, UVR, Motor Operator (optional) and voltage sense will go between the Remote breaker and the UPS Output I/O section. See Figure 9.IOB must be Listed UL 489 (Molded Case Circuit Breaker) or UL 1066 (Low Voltage AC Power Circuit Breaker) that are required to be used in UL-listed switchgear or switchboards. The circuit breaker must have a short-time rating not exceeding 480 Volts at 150K Amperes, for 5 cycles.

Table 6 RIB UV coil, aux. contacts from UPS RIB CB interface board to remote CB1Terminal Designation

Signal NameWire Size/

Max LengthFrom To

Remote Breaker Contacts

TB1101-1 RIB aux. common

#14AWG/500ft. (150m)

TB1101-2 RIB aux. N.C. (closed = CB is open)

TB1101-3 RIB aux. N.O. (closed = CB is closed)

TB1101-4 RIB trip coil (-)

TB1101-5 RIB trip coil (+)

Remote RIB motor operator control contacts from remote breaker to UPS RIB CB interface board (optional)

Remote Breaker MotorOperator Contacts

TB1102-2 AC line #14AWG/500ft. (150m)TB1102-5 Motor operator close

Remote RIB voltage sense from remote breaker to UPS

Remote Breaker Voltage Sense

TB1-1 Voltage sense PH A#14AWG/

500ft. (150m)TB1-2 Voltage sense PH B

TB1-3 Voltage sense PH C


Figure 9 Remote Output Breaker diagram

See Table 15 for required current ratings.Table 7 Remote IOB contacts from remote breaker to UPS IOB CB interface board



Remote Breaker Contacts

TB1101-1 IOB aux. common

#14AWG/500ft. (300m)

TB1101-2 IOB aux. N.C. (closed = CB is open)TB1101-3 IOB aux. N.O. (closed = CB is closed)TB1101-4 IOB trip coil (-)TB1101-5 IOB trip coil (+)

Remote IOB contacts from remote breaker to UPS IOB CB interface boardRemote Breaker Motor

Operator ContactsTB1102-2 AC line #14AWG/

500ft. (300m)TB1102-5 Motor operator closeRemote IOB contacts from remote breaker to UPS IOB CB interface board

Remote Breaker Voltage Sense

TB1-1 Voltage sense PH A#14AWG/

500ft. (300m)TB1-2 Voltage sense PH BTB1-3 Voltage sense PH C

A

B

C

E

IOB5A 5A 5A

OUT_LINE_A

OUT_LINE_B

OUT_LINE_C

OUTPUT EMI FILTER

OUT_LOAD_A

OUT_LOAD_B

OUT_LOAD_C

A

B

C

A

B

C

LINE LOADV_CB_A

V_CB_B

V_CB_C

TB1101

TB1102

4 CB2_COIL_RTN

3_CB2_NO (CB CLOSED )

2_CB2_NC (CB OPEN )

5 CB2_COIL

1_CB2_COM

Inside UPS Cabinet

IOB UVR Coil

(48VDC)

Circuit Breaker InterfaceBoard

02-806711 -01

Inside Switchgear

To UPSOutput Customer

Connections

12

12

12

IOB-1

N

1

1

Fuses should be 5A class CC or J type time delay fuse

OUT_LOAD_NOUT_LINE_N

N

2Electrical operator power provided by switchgear vendor and shall be powered from UPS side of IOB

N

120 -240 Vac

Close

IOB-xIOB

ElectricalOperator

120 -240 Vac(supplied by

switchgear vendor )

5_MTR_OP_CLOSE

2_MTR_OP_ENABLE

TB2TB2-1

TB2-2

TB2-3

TB2-4

2

IOB Status Contacts


2.5 Digital LBSThe Load Bus Sync interface enables independent UPS units to remain in sync when operating on battery or when supplied by unsynchronized input sources.Digital LBS cables that connect the module to the system are connected to terminals P3108 and P3109 on the Inter-Module Communication (IMC) board. See Figure 10.

Figure 10 Inter-Module Communication Board wiring diagram—Digital LBS

Table 8 Wire size, length for digital LBS connection of UPS Inter-Module Communication BoardsTerminal Designation

Signal NameWire Size/

Max LengthFrom ToDigital LBS from UPS Inter-Module Communication Board to other UPS Inter-Module Communication BoardP3108-1 P3108-1 LBS SYNCH CANH

3000ft(900m)P3108-2 P3108-2 LBS SYNCH CANL

P3108-3 P3108-3 GROUND - DRAIN WIRERedundant Digital LBS from UPS Inter-Module Communication Board to Other UPS Inter-Module Communication BoardP3109-1 P3109-1 REDUNDANT LBS SYNCH CANH

3000ft(900m)P3109-2 P3109-2 REDUNDANT LBS SYNCH CANL

P3109-3 P3109-3 GROUND - DRAIN WIRE1. Belden 810x or Belden 89901 cables are the only approved cables2. Each cable group should be run in a separate, grounded conduit to ensure redundancy.3. The maximum lengths must include all the LBS cables from the first module to the last module.4. The primary and redundant cable lengths can be counted separately.5. Belden 89901 cable can be used for underground installations.6. Attach the control wire to the side of control door where the Inter-Module Board (IMC) is attached. Do not run the wire across

IMC board.

UPS 1 UPS 2 UPS 3

P3108

P3109

P3108

P3109

P3108

P3109

IMC02-806730-xx

IMC02-806730-xx

IMC02-806730-xx


2.6 Configuring Neutral and Ground ConnectionsImproper grounding is the largest single cause of UPS installation and startup problems. Grounding techniques vary significantly from site to site, depending on several factors. Proper grounding should be based on NEC Section 250, but safe and proper equipment operation requires further enhancements. The following pages detail recommendations for grounding various system configurations to ensure optimal UPS system performance.

2.6.1 Four-Wire Input connectionsThe UPS module bypass input is connected to a solidly grounded source. In this configuration, the UPS module is not considered a separately derived source. The UPS module output neutral is solidly connected to the bypass source neutral, which is bonded to the grounding conductor at the source equipment.

2.6.2 Three-Wire Input connectionsThis configuration must NOT be used when single-phase loads are directly connected to the UPS. The UPS output is considered a separately derived source. The UPS module neutral is bonded to the UPS ground and connected to a local grounding electrode in accordance with NEC 250-26. Please note that whenever the UPS module transfers to or from bypass, two AC sources (UPS output and bypass) are briefly connected together and circulating current must flow. In this configuration, the current flows through the ground path, possibly tripping ground fault interrupters (GFI’s) and distorting the output voltage waveform. Proper adjustment of ground fault interrupters is necessary to avoid unwanted tripping. The time delay should be set to at least 0.2 seconds to prevent tripping when the UPS performs a transfer or retransfer.

NOTICERisk of improperly set ground fault interrupters. Can cause equipment damage.Failure to set the ground fault interrupters properly could cause loss of power to the critical load.

NOTESome UPS modules are equipped with input isolation transformers. However, these transformers have no effect upon any system grounding considerations. These modules will be grounded exactly as shown in Figures 11 through14.

CAUTIONThe UPS ground lug must be solidly connected to the service entrance ground by an appropriately sized wire conductor per NEC Article 250. Each conduit or raceway containing phase conductors must also contain a ground wire, both for UPS input and output, which are solidly connected to the ground terminal at each termination point. Conduit-based grounding systems tend to degrade over time. Therefore, using conduit as a grounding conductor for UPS applications may degrade UPS performance and cause improper UPS operation.


2.6.3 Preferred Grounding Configuration, Battery SystemsOpen-rack battery systems, depending on local code requirements and customer preference, are normally:

• Floating (ungrounded)OR• Center-tapped and floating

Battery cabinet systems must be connected as floating (ungrounded) systems.Center-tapped or grounded battery systems are not possible with battery cabinet systems.Whether the battery system is open-rack or cabinet, the metal rack parts or cabinet must be grounded to the UPS module ground bus.

2.6.4 Multi-Module SystemsFor both N+1 and 1+N systems, the neutrals of all UPS modules in the system must be connected together inside the switchgear or parallel cabinet. The neutral conductors must be rated for 20% of phase conductor current minimum. Site and load conditions will determine if larger neutrals are required. For multi-module systems using a 3-wire bypass, the Neutral-Ground bond must be made at the common neutral connection point in the switchgear or parallel cabinet.

2.6.5 High Resistance Ground SystemsThe Liebert® NXL™ is compatible with high resistance ground systems. See your local Vertiv™ representative for details.

2.7 Grounding Diagrams, Single- and Multi-Module SystemsFigure 11 Grounding diagram, three-wire single-module system

UPSSource

G

N

BPSS

N

G

To

conn

ect e

qui

pmen

t


Figure 12 Grounding diagram, four-wire single-module system

Figure 13 Grounding diagram, three-wire multi-module system

UPSSource

G

NN

G

To

conn

ect

equi

pm

ent

BPSS

SwitchgearUPS #1

Source

G

N

N

G

UPS #2

N

G

UPS #3

N

G

To

conn

ect e

quip

men

t

N

G

Grounding for 1+N systems is wired


Figure 14 Grounding diagram, four-wire multi-module system

Switchgear

UPS #1

Source

G

N

BPSS

N

G

UPS #2

BPSS

N

G

UPS #3

BPSS

N

G

To

conn

ect e

quip

men

t

N

G


3.0 OPTIONAL EQUIPMENT

3.1 Single-Module System Options3.1.1 Matching Maintenance Bypass CabinetA matching Liebert® NXL™ Maintenance Bypass cabinet is available. See Maintenance Bypass Cabinet installation manual (SL-24532), available at Vertiv’s Web site: www.vertivco.com ) for details.

3.1.2 Battery Temperature SensorThe optional external battery temperature sensor kit, supplied separately from the battery circuit breaker, contains one probe and one temperature transport board.

3.1.3 Matching Liebert® NXL™ Battery CabinetThe optional matching Liebert® NXL™ Battery Cabinet can be used to obtain the desired autonomy time. The battery cabinets are designed to be either attached to the UPS or separate from the UPS (for details, see the Liebert® NXL™ Battery Cabinet installation manual, SL-25430, available at Vertiv’s Web site: www.vertivco.com ).

3.1.4 Matching Module Battery Disconnect—MBDThe optional Module Battery Disconnect (MBD) can be used as a battery disconnect between a battery system and the Liebert® NXL™ UPS (for details, see the Liebert® NXL™ Battery Cabinet installation manual, SL-24530, available at Vertiv’s Web site: www.vertivco.com ).

3.1.5 Load Bus SynchAn optional Load Bus Synch (LBS) system can be used to synchronize two Liebert® NXL™ UPS units or a Liebert® NXL™ UPS to a Liebert® Series 610™ UPS.

3.1.6 Remote Alarm Status PanelThe remote alarm status panel has LED alarm lights. An audible alarm sounds upon any alarm condition. The surface- or flush-mounted NEMA 1 enclosed panel indicates: Load on UPS, Load on Bypass, Battery Discharging, Low Battery Warning, Overload Warning, Ambient Overtemp Warning, UPS Alarm Condition, New Alarm Condition (For a Second UPS Alarm Condition).

3.2 Communication and Monitoring• Liebert® IntelliSlot™ Web Card - SNMP/HTTP Network Interface Card• Liebert® IntelliSlot™ 485 Web Card - Modbus, J-bus, IGM Net• Remote Monitoring Services IntelliSlot™ Card• RS485/422 Protocol Converter IntelliSlot™ Card• Alber® battery monitoring system• Programmable Relay Board• Input Contact Isolator Board

3.2.1 Alber® Monitoring SystemThe matching Liebert® NXL™ Battery Cabinet allows installing an optional Alber® Battery monitoring system in the cabinet. The Alber® Battery Monitoring by Liebert® continuously checks all critical battery parameters, such as cell voltage, overall string voltage, current and temperature. Automatic periodic tests of internal resistance of each battery will verify the battery’s operating integrity. Additional capabilities include automatic internal DC resistance tests and trend analysis, providing the ability to analyze performance and aid in troubleshooting.


https://www.vertivco.com/en-us/products/brands/liebert/



3.2.2 Programmable Relay BoardThe Programmable Relay Board (PRB) provides a means to trigger an external device when an event occurs in the Liebert® NXL™. Each PRB has eight channels. Each channel has Form-C dry contacts rated at 1A @ 30VDC or 125VAC @ 0.45A.Any alarm/event can be programmed to any channel or channels. Up to four events can be programmed to a relay. If multiple events are grouped to one relay, group the events logically to simplify troubleshooting when an event is triggered. The same alarm/event can be programmed to more than one channel. Up to two Programmable Relay Boards can be installed in the Liebert® NXL™ for a total of 16 channels. Programming is performed through the HMI touchscreen display.

Figure 15 Control wiring, Programmable Relay Board

NOTEUp to two PRB’s can be installed in the Liebert® NXL™.

Table 9 Programmable Relay Board pinoutTerminal

Block Channel Pin No. CommonNormally

ClosedNormally

Open

J71

CH1A 1-3 1 2 3B 4-6 4 5 6

CH2A 7-9 7 8 9B 10-12 10 11 12

CH3A 13-15 13 14 15

J72

B 1-3 1 2 3

CH4A 4-6 4 5 6B 7-9 7 8 9

CH5A 10-12 10 11 12B 13-15 13 14 15

TB3

CH6A 1-3 1 2 3B 4-6 4 5 6

CH7A 7-9 7 8 9B 10-12 10 11 12

CH8A 13-15 13 14 15

J74 B 1-3 1 2 3Note: Pin 16 not used on J71, J72, and J73.

1 2 3 6 7 8 94 105 111213141516

1 2 3 6 7 8 94 105 11 121314 1516

1 2 3 6 7 8 94 105 11121314 1516

1 2 3

J74

J71

J72

J73

1. Customer control wiring connection points are terminals 1 through 15. (Pin 16 not used on J71, J72, and J73.)

2. Programmable Relay Board option includes eight signal channels with two Form-C dry contacts per channel (see Table 12).

3. All control wiring (by others) must be run separate from power wiring. Control wiring runs should not be combined in the same conduit.

4. Contact ratings: 1A @ 30VDC or 125VAC @ 0.45A

5. Maximum cable length 500 ft. (152m) with #16AWG and flexible stranded cable.


Configuring the Programmable Relay Board Settings1. Press Internal Option Settings from the Config menu.2. Press which Programmable Relay Board will be configured. The Programmable Relay Board dialog box is

displayed.3. Press the Relay channel4. Press up to four (4) events. Selected events will show up under Relay 1 Assignment.

5. Repeat Steps 3 and4 for each relay.6. Press SAVE to keep the settings.

Figure 16 Programmable relay board dialog box

• Assignment—0 to 4 event (default: 0)• Delay, sec—0 to 99.9 (default: 0)

NOTETo deselect an event, click on the event.

1 2 3 4 5 6 7 8

0.0Relay 1 Delay (sec)

Relay 1 Assignment

Programming Relay

Programming Relay Board #1

Auto Rexfer Failed

BFB Open

Batt CB1 Open

Batt CB2 Open

Batt CB3 Open

Save

BPSS Ovld Exceeded

BPSS Unable

Cancel

X?


3.2.3 Input Contact Isolator BoardThe Input Contact Isolator Board (ICI) provides a Liebert® NXL™ module interface for up to eight external user alarm or message inputs to be routed through the Liebert® NXL’s alarm network. The eight contacts are normally open dry contacts. When a contact closes, an event is triggered.

The Input Contact Isolator options are configured through the Input Contact Isolator dialog box, which is accessed from the Internal Option Settings under Config dialog box on the HMI touchscreen display. The Input Contact Isolator dialog box contains eight choices to match the eight channel input board. You can label each button to identify the event associated with the contact. When the dialog box is accessed, each button flashes to display the Input Contact Isolator number and the user entered label. This label also appears in the Display Panel when an event related to an Input Isolator Connector is triggered.The Input Contact Isolator dialog box allows you to:

• Label the input contact assignments for your setup.• Set the delay for an external event triggering an alarm.• Review the isolator contact assignments, once the labels are entered.

The delay allows setting the number of seconds that a condition must exist before it will trigger an alarm. To configure the Input Contact Isolator relays:

1. Press Internal Option Settings from the Config menu.2. Press which Input Contact Isolator is to be configured. The Input Contact Isolator dialog box is displayed.

Figure 17 Input contact isolator dialog box

NOTEUp to two ICI’s can be installed in a Liebert® NXL™.

Input Contact Isolator Board #1

Save Cancel

X?

Ch #

Ch #

Ch #

Ch #

Ch #

Ch #

Ch #

Ch #

Custom Pre-assigned Input Contact 11 Delay

Delay

Delay

Delay

Input Contact 12

Input Contact 13

Input Contact 14

Input Contact 15

Input Contact 16

Input Contact 17

Input Contact 18

Pre-assigned

Pre-assigned

Pre-assigned

Pre-assigned

Pre-assigned

Pre-assigned

Pre-assigned

Custom

Custom

Custom

Custom

Custom

Custom

Custom

0.0

0.0

0.0

0.0

Delay 0.0

Delay 0.0

Delay 0.0

Delay 0.0


• Assignment—Custom, Pre-assigned (default: “Input Contact” XY)• Delay, sec—0 to 99.9 (default: 0)• Message—Custom: 0-19 characters3. To assign labels for each channel:

a. Press Pre-assigned for default labels on Channels 1-6 (See Table 10)b. For Custom labels

1. Press Custom to unique labels. 2. Click on Input Contact XX button. A keyboard is displayed to allow naming alarms.3. Enter the name of the alarm set for that input. For example, a fan problem could be indicated by naming

the button FAN.4. Press OK on the keyboard to keep your label.

4. Press DELAY.a. A keypad is displayed prompting you for a delay time, in seconds, for a condition to exist

before the alarm is triggered.b. Enter the delay value. The range for the values are from 0 (zero) to 99.9 seconds.c. Press OK on the keypad to keep your setting. The value you entered is displayed in the field

adjacent to the corresponding input contact.5. Repeat Steps 3 and4 for each input contact.6. Press SAVE after you have configured all input contacts.Be sure to press Save even if you have accessed this dialog only to change a setting.7. This information is not saved if control power is removed.

Table 10 Input Contact Isolator Board pre-assigned valuesChannel Number

ICI #1Pre-Assigned Label

ICI #2Pre-Assigned Label

1 Reduced Rect ILimit Stop Battery Charge

2 Reduced Batt ILimit Stop Battery Charge

3 Stop Battery Charge Stop Battery Charge

4 Inhibit Rect Restrt Stop Battery Charge

5 Inhibit Byp Restrt Stop Battery Charge

6 Inhibit Inv Restrt Stop Battery Charge

7 Input Trap Filter Disconnect Inhibit IP Standby

8 Suspend ECO Mode —


Figure 18 Optional Input Contact Isolator Board

1 2 3 6 7 8 94 105 11 121314 1516

J51

No Customer Connection Table 11 Input Contact Isolator Board control wiring connections

Input Contact Pin No.

112

234

356

478

5910

61112

71314

815

1. Customer control wiring connection points are terminals 1 through 16 (see Table 11).

2. Customer provided normally open dry contacts for user alarm messages.


4. Signal voltage: 100mA @ 12VDC.5. Maximum cable length 500 ft. (152m) with #16AWG and flexible


4.0 INSTALLATION DRAWINGSFigure 19 Main components, 500kVA Liebert® NXL SMS and 1+N multi-module unit with static bypass

Option Box

(6 Slots)

Liebert®

IntelliSlot™

Housings

Main Input

Circuit Breaker

(CB1)

Module Output

Circuit Breaker

(CB2)

Back Feed Circuit

Breaker (BFB)

Input

Busbars

DOORS AND INNER SKINS REMOVED

FRONT DOORS REMOVED

Keylock or EMO

Button (Optional)

External Interface

Board

HMI Screen

Inter-Module

Communication

Board, Behind

HMI Screen

Bypass

BusbarsInput

Ground

Output

Ground

Output

Busbars

U40-5C-2000

Rev. 2

DC (-)

Input

DC (+)

Input


Figure 20 Outline drawing, Liebert® NXL™ 500kVA UPS SMS and 1+N multi-module unit with static bypass

Inverter Split (Part B)

LEFT SIDE VIEW FRONT VIEW

Rectifier Split (Part A)

RIGHT SIDE VIEW

.0

.0DETAIL B

SECTION A-ABOTTOM VIEW

AA

TOP VIEW

25.5"[647mm]

32.3"[820mm]

49.2" [1250mm] 62.4" [1585mm]

111.6" [2835mm]39.6"

[1005mm]

76.8" [1950mm]

35.7"[906mm]

14.9"[379mm]

69.8"[1773mm]

25.8"

[654mm]

10.8"[273mm]

96.8" [2458mm]

10.8"[274mm]

14.6"[370mm]

1.25"[31.9mm]

10.8" [275mm]

2.92" [74mm]

15.6"[396mm] 10.6

[269mm]

Rectifier / DC

Cable Entry

Control Cable

Entry/Exit Bypass/Output

Cable Entry/Exit

Cable

EntryBypass/Output

Cable Entry/Exit

Rectifier

Center

of Gravity

Inverter

Center

of Gravity

0.6" [15mm]Panel Width

Front-Most

Edge of Frame

Outer Edge

Corner Post

NOTES

1. All dimensions are in inches (mm).

2. 24" (610) minimum clearance above unit required for air exhaust

and maintenance.

3. Keep cabinet within 15 degrees of vertical.

4. Top and bottom cable entry available through removable access plates.

Remove, punch to suit conduit size and replace.

5. Unit bottom is structurally adequate for forklift handling.

6. All wiring is to be in accordance with national and local electrical codes.

7. Depth dimension includes front door and rear panel.

8. Width dimensions include side panels. Subtract 1.4" (35mm) when

removing both side panels.


Figure 21 Input terminal details, Liebert® NXL™ 500kVA UPS, SMS and 1+N multi-module unit with static bypass

DUAL LUG

CONNECTION DETAIL

DO NOT DOUBLE STACK LUGS

(two lugs on same side of busbar).

This is to prevent the cables from

coming into contact with other bus bars.

Lugs

BusbarBolt

U40-5E-3200

Rev. 4

LEFT SIDE (PART A) LEFT FRONT (PART A)

GROUND BUS

DC INPUT

INPUT

PHASES

CBA

0

29.5"

(749mm)

42.4"

(1077mm)

45.6" (1158mm)

48.8" (1240mm)

54.6" (1387mm)

59.2" (1504mm)

DC INPUTS

GROUND

76.8"

(1950mm)

NOTES

1. Control wiring and power wiring must be run in separate conduits


3. See page 2 of 2, Drawing Number: U40-5E-3201.

DC (+)

Input

DC (-)

Input

INPUT PHASES

Ø 0.5"

(13mm)

Typical

Ø 0.5"

(13mm)

Typical

Ø 0.5"

(13mm)

Typical

1.75"

(44mm)

Typical

1.75"

(44mm)

Typical

1.75"

(44mm)

Typical

1.75" (44mm)

Typical1.75" (44mm)

Typical

1.75" (44mm)

Typical

3"

(76mm)

3"

(76mm)

3"

(76mm)


Figure 22 Output terminal details, Liebert® NXL™ 500kVA UPS, SMS and 1+N multi-module unit with static bypass

NOTES:

1.All dimensions are in inches (mm).

2. Unless otherwise noted, use copper or aluminum conductors suitable for at least 75°C.


RIGHT FRONT (PART B) RIGHT SIDE (PART B)

Do not double-stack lugs (two lugs

on same side of busbar).

This is to prevent the cables from

coming into contact with other busbars.

CB

1-3

CB

1-3

Lugs

BusbarBolt

DUAL LUG

CONNECTION DETAIL

1.75(44)TYP

Ø0.50(13) TYP

2.36(60)TYP

2.36(60)TYP

OUTPUT

GROUND

.0( 0)

31.1(790)

44.7(1135)

Output &

Bypass &Neutral

Neutral

1.75(44)TYP

Ø0.50(13) TYP

2.56(65)TYP

2.56(65)TYP

OUTPUT, BYPASS & NEUTRAL

BusNeutral

A B C N

A B C N

FRONT

Phases &Bypass

BusNeutralPhases &Output

8.7(220)

13.8(350)

59.2(1504) Ground

Output

76.8(1950)


Figure 23 Base drawing, Liebert® NXL™ 500kVA UPS, SMS and 1+N multi-module unit with static bypass

BRACKET MOUNTING LOCATIONS(M10 HEXSERTS)

FOOTPRINT SPACING

LIFT CLEARANCE

SHIPPING SPLIT

RECTIFIER SECTION(PART A)

NOTES:


2. Unit bottom is structurally adequate for

forklift handling.

INVERTER SECTION(PART B)

BOTTOM CABLE

ENTRY PANELSPILLARS REMOVED

FOR CLARITY

RECTIFIER SECTION(PART A)

INVERTER SECTION(PART B)

BOTTOM INPUT

(PART A)

BOTTOM OUTPUT

(PART B)

FRONT VIEWRIGHT SIDE

BOTTOM VIEW

FRONT VIEW

RIGHT SIDE

2.2 [56]

33.3 [845]

10.9 [276]

DETAIL A

27.2 [691]

3.9 [99]

4.7 [120]TYP.3.9 [100]

TYP.7.9 [200]

TYP.

37.2 [945]

PILLARSPACING

36.7 [931]Foot

Spacing

.75

[19] TYP.

2.4 [61]

21.0 [535]

1.7 [42]

21.0 [535]

4.8 [122]

12.1 [307]

1.7 [42]

13.9 [354]

1.7 [42]

13.9 [354]

1.7 [42]

12.1 [307]

FORKLIFT OPENINGS

3.9 [99]

48.6 [1234]

FORKLIFT OPENINGS

61.8 [1570]

3.9 [100]

9.0 [229]

10.9 [276]

9.0 [229]

18.0 [457]

18.0 [457]

REAR

FRONT

SEE

A

8.0 [202]

8.0 [202]


Figure 24 Field connections, shipping split 500kVA Liebert® NXL™, multi-module or SMS with static bypass, Page 1

WH P/NSTART

(Part B- Inverter Cabinet)FINISH

(Part A- Rectifier Cabinet) Label

604309G1 02-806704 Inverter Gate Drive A UPSC To: 02-806701

ID: P0400A

604309G2 02-806704 Inverter Gate Drive B UPSC To: 02-806701

ID: P0400B

604309G3 02-806704 Inverter Gate Drive C UPSC To: 02-806701

ID: P0400C

604325G1 DCFAN_2 & DCFAP_1 DC Fuse Block 02-806708External Interface Board

To: 02-806708ID: P0814

M10 FLAT WASHER

M10 RIBBED WASHER(x2)

M10 HEX HEAD BOLT

(+)DC BUSBAR

(-)DC BUSBAR

DETAIL A

M10 NUT HEX

PART A - WIRE STARTING POINT PART B - WIRE FINISHING POINT

DC POWER CONNECTION BETWEEN PART A AND B.

604309G1

604309G2

604309G3

604325G1

02-806704-PHASE A

02-806704-PHASE B02-806704-PHASE C

DETAIL A

HARDWARE PROVIDED WITH PART B.(4) BOLTS TOTAL.

TORQUE CONNECTION TO 27 N-M, 240 IN-LBS.


Figure 25 Field connections, shipping split 500kVA Liebert® NXL™, multi-module or SMS with static bypass, Page 2

DC POWER CONNECTION BETWEEN PART B AND A.

HARDWARE PROVIDED WITH PART A.(4) BOLTS TOTAL.

TORQUE CONNECTION TO 27 N-M, 240 IN-LB.

M10 NUT HEX

M10 RIBBED

WASHER(x2)

M10 FLAT WASHER

M10 HEX HEAD BOLT

DETAIL B

LOOSEN HARDWARE TO ALLOW

BUSBAR TO MOVE TO JOIN TO

PART B BUSBAR.

RETIGHTEN AND TORQUE TO

27 Nm(240 in-lb)

604308G1

604313G1

604348G1

604352G1

604313G2

604307G1

604348G1604348G1

604349G1604348G1604348G1

(+) DC BUSBAR

(-) DC BUSBAR

DETAIL B

PART A - WIRE FINISHING POINT PART B - WIRE STARTING POINT


WH P/NSTART

(Part A- Rectifier Cabinet)FINISH

(Part B- Inverter Cabinet) LABEL

604308G1 UPSC 02-806705Bypass Control Board

TO: 02-806705ID: P0500

604313G1 UPSC 02-806705Bypass Control Board

To: 02-806705ID: P0501

604313G2 UPSC 02-806707Load VI

To: 02-806707ID: P0700

604307G1 UPSC 02-806707Load VI

To: 02-806707ID: P0701

604348G1 UPSC Power Supply To: Power SupplyID: P66A

604348G1 02-806708External Interface Board Power Supply To: Power Supply

ID: P66B

604348G1 HMI Power Supply To: Power SupplyID: P99A

604348G1 02-806710Fan Interface Board#1 Power Supply To: Power Supply

ID: P99B

604348G1 UPSC Power Supply To: Power SupplyID: P1300

604348G1 UPSC Power Supply To: Power SupplyID: P1302

604349G1 F48-2&F49-2Bypass PS Fuse Block Power Supply To: Power Supply

ID: P1303

604349G1 F46-2&F47-2Bypass PS Fuse Block Power Supply To: Power Supply

ID: P1304

604348G1 02-806708External Interface Board Power Supply To: Power Supply

ID: P55

604352G1 02-806710Fan Interface Board#1

02-806716AC Power Distribution Board

To: 02-806716 ID:P1011A

604348G1 02-806710Fan Interface Board#1

02-806710FAN Interface Board#2

To: 02-806710ID: P99


Figure 26 Main components, 625/750kVA Liebert® NXL™, N+1 multi-module unit without static bypass

Liebert®

IntelliSlot™

Housings

HMI Screen

Inter-Module

Communication

Board (behind

door)

EMO Button

(Optional)

Option Box

(6 Slots)

Main Input

Circuit Breaker

(CB1)

Module OutputCircuit Breaker(CB2)

Output

CB2/IOB

Circuit

Breaker

Board

Busbars

Neutral

Output

Ground

DC Input

External

Interface

Board (EIB)

Input

Busbars

Input

Ground

CB1/RIB Circuit

Breaker Board

FRONT DOORS NOT SHOWN

DOORS AND INNER SKINS NOT SHOWN


Figure 27 Main components, 625/750kVA Liebert® NXL™ UPS, SMS and 1+N multi-module unit with static bypass

Option Box(6 Slots)

Liebert

IntelliSlot

Housings

Main Input

Circuit Breaker

(CB1)

Module Output

Circuit Breaker

(CB2)

Back Feed

Circuit Breaker

(BFB)

Keylock or

EMO Button

(Optional)

InputGround

InputBusbars

DC Input

Output

Busbars

Bypass

Busbars

FRONT DOORS NOT SHOWN

DOORS AND INNER SKINS

HMI Screen

CB2/IOB

Circuit Breaker

Interface Board

CB1/RIBCircuit BreakerInterface Board

External

Interface

Board (EIB)

Inter-Module

Communication

Board (Located

Behind HMI Screen)


Figure 28 Outline drawing, 625/750kVA Liebert® NXL™, N+1 multi-module unit without static bypass

NOTES1. All dimensions are in inches (mm).2. 24" (610) minimum clearance above unit required for air exhaust and maintenance.3. Keep cabinet within 15 degrees of vertical.4. Top and bottom cable entry available through removable access plates. Remove, punch to suit conduit size and replace.

5. Unit bottom is structurally adequate for forklift handling.6. Depth dimension includes front door and rear panel.7. Width dimensions include side panels. Subtract 1.4" (35mm) when removing both side panels.

Rectifier / DCCable Entry

Control Cable Entry \ Exit

Bypass \ Output Cable Exit

Rectifier / DCCable Entry

Control Cable Entry / Exit

Outer Edge Corner Post

Front Most Edge Of Frame

Bypass \ Output Cable Exit.

Rectifier Center of

Inverter

71.6 [1819]

62.4 [1585]

62.4 [1585]

Inverter Split (Part B)

15.8 [402]

3.7 [94]

17.6 [447]

.0( 0 )

.0( 0 )

3.3 [85]

14.8 [376]

2.1 [53] 19.1

[486]

24.6 [626]

15.2 [385]

4.1 [105]

.0( 0 )

0

.6 [15]

Panel Width

76.8 [1950]

14.4 [367]

11.6 [294]

109.9 (2791)

10.6 [269]

1.6 [40]

17.7 [449]

23.6 [600]

12.3 [312]

24.6 [625]

31.5 [800]

36.3 [922]

26.0 [660]

31.5 [800]

23.8 [605]

Section A-ABottom View

B

Detail B

AA

GravityCenter ofGravity

125 (3175) 39.4 (1000)

Right Side ViewLeft Side View

Top View

Front ViewRectifier Split (Part A)

16.6 [423]


Figure 29 Outline Drawing, 625/750kVA Liebert® NXL™, SMS and 1+N multi-module unit with static bypass

NOTE

S1.

All d

imen

sions

are i

n inc

hes (

mm).

2. 24

" (61

0) m

inimu

m cle

aran

ce ab

ove u

nit re

quire

d for

air e

xhau

st an

d main

tenan

ce.

3. Ke

ep ca

binet

withi

n 15 d

egre

es of

vertic

al.4.

Top a

nd bo

ttom

cable

entry

avail

able

throu

gh re

mova

ble ac

cess

plate

s.

Re

move

, pun

ch to

suit c

ondu

it size

and r

eplac

e.5.

Unit b

ottom

is st

ructu

rally

adeq

uate

for fo

rklift

hand

ling.

6. De

pth di

mens

ion in

clude

s fro

nt do

or an

d rea

r pan

el.7.

Widt

h dim

ensio

ns in

clude

side

pane

ls. s

ubtra

ct 1.4

" (35

mm) w

hen r

emov

ing bo

th sid

e pan

els.

RECT

IFIE

R CE

NTER

OF

62.5

[158

7]78

.0 [1

981]

INVE

RTER

SPL

IT (P

ART

B)

24.6

[625

]

31.5

[800

]

36.3

[922

]29

.1 [7

39]

A

GRA

VITY

140.5

[356

8]

LEFT

SID

E VI

EWFR

ONT

VIEW

RECT

IFIE

R SP

LIT (P

ART A

)

AINVE

RTER

76.8

[195

0]

34.1

[866

]

23.8

[605

]

CENT

ER O

F G

RAVI

TY

39.4

[100

0]

RIGH

T SI

DE V

IEW

OUTE

R ED

GE

CORN

ER P

OST

FRON

T MO

ST

EDGE

OF

FRAM

E

.0 (0)

.0 (0)

.6 [15]

PANE

L WID

TH

DETA

IL B

RECT

IFIE

R / D

CCA

BLE

ENT

RYCO

NTRO

L CAB

LE

ENTR

Y \ E

XIT

71.6

[181

9]15

.8 [4

02]

3.7 [94]

17.6

[447

]

TOP

VIEW

16.6

[423

]

11.9

[302

]

34.3

[871

]

BYPA

SS \ O

UTPU

T CA

BLE

EXIT

RECT

IFIE

R / D

CCA

BLE

ENTR

Y

CONT

ROL C

ABLE

EN

TRY

/ EXI

T

.0 (0)

.0 (0)

3.3 [85]

14.8

[376

]

2.1 [53]

19.1

[486

]

24.6

[626

]

15.2

[385

]

4.1 [105

] SECT

ION

A-A

BOTT

OM V

IEW

B

9.2 [233

]

34.3

[872

]

BYPA

SS \ O

UTPU

T CA

BLE

EXIT.

126.8

[322

0]

1.6 [40]


Figure 30 Base detail drawing, 625/750kVA Liebert® NXL™, N+1 multi-module unit without static bypass

Bracket Mounting Locations (M10 Hexserts)

Footprint Spacing

Lift Clearance

Shipping Split

Rectifier Section(Part A)

Pillars Removed For ClarityBottom Cable Entry Panels

Front

Inverter Section(Part B)

FrontOf Unit

Forklift OpeningsForklift Openings

Rectifier Section(Part A)

Inverter Section(Part B)

Notes:


2. Unit bottom is structurally adequate for

forklift handling.

Bottom Input (Part A) Bottom Output (Part B)

Front View

Right Side

Bottom View

Front View

2.4

[61]27.7 [403] 27.7 [403] 27.7 [403] 27.7 [403]

1.7 [42] 1.7 [42]4.8 [122]

Right Side

2.1 [53] 33.3 [845]

24.6

[625]

10.9

[276]

9.0

[229]

9.0

[229]

10.9

[276]

10.9 [276]

9.0

[229]

3.9 [100]Typ

4.7 [120]Typ

7.9 [200]Typ

27.2 [691] 3.9

[99]61.8 [1570] 61.8 [1570]3.9

[100]

6.0 (152.4)

8.0 (203.2)

37.2 [945]


Figure 31 Base Drawing, 625/750kVA Liebert® NXL™, SMS and 1+N multi-module unit with static bypass

BRAC

KET

MOUN

TING

LOCA

TION

S(M

10 H

EXSE

RTS)

FOOT

PRIN

T SP

ACIN

G

LIFT

CLEA

RANC

E

SHIP

PING

SPL

IT

RECT

IFIE

R SE

CTIO

N(P

ART A

)

NOTE

S:1.

All d

imen

sions

are i

n inc

hes (

mm).

2. Un

it bott

om is

stru

ctura

lly ad

equa

te

for fo

rklift

hand

ling.

INVE

RTER

SEC

TION

(PAR

T B)

BOTT

OM C

ABLE

ENT

RY P

ANEL

SPI

LLAR

S RE

MOVE

D FO

R CL

ARIT

YRE

CTIF

IER

SECT

ION

(PAR

T A)

INVE

RTER

SEC

TION

(PAR

T B)

FORK

LIFT

OPEN

INGS

FORK

LIFT

OPEN

INGS

REAR

FRON

TOF

UNI

T

REAR

BOTT

OM IN

PUT

(PAR

T A)

BOTT

OM O

UTPU

T (P

ART

B)

FRON

T VI

EW

RIGH

T SI

DE

BOTT

OM V

IEW

FRON

T VI

EW

2.4 [61]

27.7

[703

]1.7 [4

2]

27.7

[703

] 4.8 [122

]

27.7

[703

]1.7 [4

2]

27.7

[703

]4.8 [1

22]

10.7

[271

]

RIGH

T SI

DE

2.2 [56]

33.3

[845

]

24.6

[625

]

10.9

[276

]9.0 [2

29]

9.0 [229

]10

.9 [2

76]

10.9

[276

]9.0 [2

29]

7.6 [193

]

3.9 [100

]TY

P

4.7 [120

]TY

P

7.9 [200

]TY

P

A

DETA

IL A

27.2

[691

]3.9 [9

9]0.75

[19]

6.0 (1

52.4)

6.0 (1

52.4)

37.2

[945

]PI

LLAR

SPAC

ING

36.7

[931

]FO

OTSP

ACIN

G

3.9 [100

]

3.900

61.8

[157

0]77

.3 [1

963]


Figure 32 Input terminal detail, 625/750kVA Liebert® NXL™, N+1 multi-module unit without static bypass

Notes1. All dimensions are in inches (mm).

2. Control wiring and power wiring must be run

in separate conduits.

3. Unless otherwise noted, use copper or aluminum

conductors suitable for at least 75°C.

4. All wiring is to be in accordance with national

and local electrical codes.

DC (-)Input

InputGround

DC (+)Input

InputPhases

Do not double-stack lugs (two lugs on same

side of busbar). This is to prevent the cables

from coming into contact with other busbars.

LEFT FRONT

A

B

C

LEFT SIDE (INPUT)

DC Inputs Input Phases Input Ground

O .56

(14)

Typ.)

.56

(14)

Typ.)2.0 (51)

Typ.)

.56

(14)

Typ.)

1.26 (32)

Typ.)

2.00(51) TYP

OO

1.75

(44) Typ.1.75

(44) Typ.

1.75

(44) Typ.

0

23.5 (598)

32.4

(824)

36.2 (920)

40.0 (1016)

51.3 (1303)

3.5

(90)3.5

(90)

76.8

(1950)

DUAL LUG CONNECTION DETAIL

Lugs

BusbarBolt

CB

1-3

CB

1-3


Figure 33 Input terminal detail, 625/750kVA Liebert® NXL™, SMS and 1+N multi-module unit with static bypass

Do not double stack lugs (two lugs on same side of busbar). This is to prevent the cables from coming into contact with other busbars.

LEFT FRONT (PART A)LEFT SIDE (PART A)

DC

INPUTSINPUT

PHASES

INPUT

GROUND

DUAL LUG CONNECTION DETAIL

DC (-)INPUT

INPUTGROUND

DC (+)INPUT

INPUTPHASES

LUGS

BUSBARBOLT

A

B

C

2.00 [51] TYP

1.75 [44] TYP

2.00 [51] TYP

1.75 [44] TYP

DIA. Ø.56 [Ø14]TYP

DIA. Ø.56 [Ø14]

TYP

DIA. Ø.56 [Ø14]TYP

1.26 [32] TYP

1.75 [44] TYP

.0

23.5(598)

32.4(824)

36.2 (920)

40.0(1016)

51.3(1303)

3.5 [90]

3.5 [90]

76.8(1950)

CB

1-3

CB

1-3

NOTES:


2. Control wiring and power wiring must be run in separate conduits.

3. Unless otherwise noted, use copper or aluminum conductors suitable for at least 75°C.

4. All wiring is to be in accordance with national and local electrical codes


Figure 34 Output terminal detail, 625/750kVA Liebert® NXL™, N+1 multi-module unit without static bypass, cont’d

NOTES:

1. All dimensions are in inches (mm)


3. Unless otherwise noted, use copper or aluminum conductors suitable

for at least 75°C.

4. All wiring is to be in accordance with national and local electrical

codes.

Neutral

Output

Ground

Output

Phases

RIGHT SIDE (OUTPUT)RIGHT FRONT

A B C

OUTPUT GROUND

O

1.57 (40) Typ.1.38 X .56 Slot10 Places

NEUTRAL

O

1.38 x .5

Slot 5

Places Each

Busbar

OUTPUT

PHASES

O

1.75

(44) Typ.

(Top Entry)

1.75 (44)

Typ. (Bottom

Entry)

1.75 (44)

Typ. (Bottom

Entry)

1.75 (44)

Typ.

1.75 (44)

Typ. (Top

Entry)

.56 (14)

Typ. 5

Places

.56 (14)

Typ. 5

Places

.56 (14)

Typ. 20

Places

0

32.0

(813)

39.4

(1002)

53.2

(1352)

76.8

(1950)

DO NOT DOUBLE-STACK LUGS

CB

1-3

CB

1-3


Figure 35 Output terminal detail, 625/750kVA Liebert® NXL™, SMS and 1+N multi-module unit with static bypass, cont’d

NOTES



3. Unless otherwise noted, use copper or aluminum conductors suitable for

at least 75°C.


BREAKERS AND

FRONT POST

REMOVED FOR

CLARITY

C B A N C B A

OUTPUT

GROUND

(TOP ENTRY)

OUTPUTGROUND

1.75(44)TYP

.56 DIA.(14) TYP

1.75(44)TYP

76.8(1950)

30.4(772)

33.9(860)

.0

56.4(1432)

BYPASS / OUTPUT NEUTRAL

1.49(37.7)TYP

BYPASS

NEUTRAL

BUS

OUTPUT

NEUTRAL

BUS

(BOTTOMENTRY)

RIGHT SIDE (PART B)RIGHT FRONT (PART B)

BYPASS / OUTPUT PHASES

OUTPUT GROUND

1.38 X .56 SLOT6 PLACESEACH BUSBAR

1.75(44) TYP

OUTPUTPHASES,APPROX.3.0" SPACINGBETWEENBUSBARS

BYPASSPHASES,APPROX.3.0" SPACINGBETWEENBUSBARS

.56 DIA.(14) Typ.

28 PLACES

.56 DIA.(14) Typ.

20 PLACES

1.30 (33) Typ.

1.75

(44) Typ.

OUTPUTNEUTRAL

BYPASSNEUTRAL

DO NOT DOUBLE-STACK LUGS

CB

1-3

CB

1-3


Figure 36 Shipping split 625/750kVA Liebert® NXL™ without static bypass

WH P/NSTART

(Part A - Rectifier Cabinet)FINISH

(Part B - Inverter Cabinet) LABEL

531985G1 UPSC (Control Door) 02-806704 - Inverter Gate Drive A To: 02-806704- Phase AID: P0400A

531988G2 UPSC (Control Door) 02-806707 - Load VI To: 02-806707-ID: P0700

531983G1 UPSC (Control Door) 02-806707- Load VI To: 02-806707-ID: P0701

531985G2 UPSC (Control Door) 02-806704 - Inverter Gate Drive B To: 02-806704- Phase BID: P0400B

531985G3 UPSC (Control Door) 02-806704 - Inverter Gate Drive C To: 02-806704-Phase C ID: P0400C

532061G1 Power Supply 02-806716 - AC Distribution BoardTo: 02-806716-__ Connection ID: P1305WH P/N: 532061G1

(+)

DC

Bu

sb

ar

(-)

DC

Bu

sb

ar

M1

0 F

lat W

ash

er

M1

0 R

ibb

ed

Wa

sh

er

(2x)

M1

0 H

ex H

ea

d B

olt

Lo

w-V

olta

ge

Wire

Co

nn

ectio

ns

Be

twe

en

Pa

rt A

an

d P

art

BW

ire

s a

re c

oile

d a

nd

tie

d in

Pa

rt A

.

Un

co

il, r

ou

te a

nd

co

nn

ect w

ire

s in

fin

ish

pa

rt a

s s

ho

wn

.

Use

wire

la

be

l a

s g

uid

e fo

r "t

o"

co

mp

on

en

t, c

on

ne

ctio

n

ID a

nd

wire

pa

rt n

um

be

r. T

ie w

ire

s a

wa

y fro

m s

ha

rp

ed

ge

s, b

usb

ar

an

d e

lectr

on

ic c

om

po

ne

nts

.

02

-80

67

16

-

02

-80

67

04

-

Ph

ase

A

02

-80

67

04

-

Ph

ase

B

02

-80

67

04

-

Ph

ase

C

02

-80

67

07

-

Ha

rdw

are

for

De

tail

A

Inclu

de

d

in T

his

Bo

x

Lo

ose

n h

ard

wa

re to

allo

w

busbar

to m

ove to join

to P

art

B B

usbar.

Re

tig

hte

n a

nd

to

rqu

e

to 2

7 N

-m (

24

0 in

-lb

)

Pa

rt A

(R

ectifie

r) -

Wire

Sta

rtin

g P

oin

t

53

19

85

GI

53

19

88

G2

53

19

83

G1

A

53

19

85

G2

53

19

85

G3

53

20

61

G1

De

tail

AD

C P

ow

er

Co

nn

ectio

n B

etw

ee

n P

art

A a

nd

Pa

rt B

Ha

rdw

are

Pro

vid

ed

With

Pa

rt B

: 4

Bo

lts T

ota

l

To

rqu

e C

on

ne

ctio

n T

o 2

7 N

-m (

24

0 In

-lb

s)

Pa

rt B

(In

ve

rte

r) -

Wire

Fin

ish

ing

Po

int


Figure 37 Shipping split 625/750kVA Liebert® NXL™ without static bypass (continued)

WH P/NSTART

(Part B - Inverter Cabinet)FINISH

(Part A - Rectifier Cabinet) LABEL

532049G1 02-806716- AC Distribution Board 02-806710- Fan Interface Board 1To: 02-806710-__Connection ID: P1011WH P/N: 532049G1

532065G1 02-806710- Fan Interface Board 2 02-806710- Fan Interface Board 1To: 02-806710-__Connection ID: P66WH P/N: 532065G1

532063G1 DC Fuse 02-806708- External Interface BoardTo: 02-806708-__Connection ID: P0814WH P/N: 532063G1

532065G1 02-806710- Fan Interface Board 3 02-806708- External Interface BoardTO: 02-806708-__Connection ID: P99BWH P/N: 532065G1

02

-80

67

08

-

Lo

w V

olta

ge

Wire

Co

nn

ectio

ns B

etw

ee

n P

art

B a

nd

Pa

rt A

Wire

s a

re c

oile

d a

nd

tie

d in

Pa

rt B

.

Un

co

il, r

ou

te a

nd

co

nn

ect

wire

s in

fin

ish

pa

rt a

s s

ho

wn

.

Use

wire

la

be

l a

s g

uid

e f

or

"to

" co

mp

on

en

t, c

on

ne

ctio

n I

D a

nd

wire

pa

rt n

um

be

r.

Tie

wire

s a

wa

y f

rom

sh

arp

ed

ge

s,

bu

sb

ar

an

d e

lectr

on

ic c

om

po

ne

nts

.

02

-80

67

10

-

Pa

rt A

(R

ectifie

r) -

Wire

Fin

ish

ing

Po

int

53

20

49

G1

53

20

65

G1

53

20

63

G1

53

20

65

G1

Part

B (

Invert

er)

- W

ire S

tart

ing P

oin

t


Figure 38 Shipping Split, 625/750kVA Liebert® NXL™, SMS and 1+N multi-module unit with static bypass

PA

RT

A -

WIR

E S

TA

RT

ING

PO

INT

PA

RT

B -

WIR

E F

INIS

HIN

G P

OIN

T

Ha

rdw

are

Pro

vid

ed

With

Pa

rt B

.(4

) B

olts T

ota

l.To

rqu

e C

on

ne

ctio

n to

27

N-m

(2

40

in

-lb

).

M1

0 F

LA

T W

AS

HE

R

M1

0 R

IBB

ED

WA

SH

ER

(x2

)

M1

0 H

EX

HE

AD

BO

LT

Lo

w V

olta

ge

Wire

Co

nn

ectio

ns B

etw

ee

n P

art

s A

an

d B

Wire

s a

re c

oile

d a

nd

tie

d in

Pa

rt A

.

Un

co

il, r

ou

te a

nd

co

nn

ect w

ire

s in

fin

ish

pa

rt a

s s

ho

wn

.

Use

wire

la

be

l a

s g

uid

e fo

r “T

O”

co

mp

on

en

t, c

on

ne

ctio

n ID

an

d w

ire

pa

rt n

um

be

r.

Tie

wire

s a

wa

y fro

m s

ha

rp e

dg

es, b

usb

ar

an

d e

lectr

on

ic c

om

po

ne

nts

.

DC

Po

we

r C

on

ne

ctio

n B

etw

ee

n P

art

s A

an

d B

(+)

DC

BU

SB

AR

LO

OS

EN

HA

RD

WA

RE

TO

AL

LO

WB

US

BA

R T

O M

OV

E T

O J

OIN

TO

PA

RT

B B

US

BA

R.

RE

TIG

HT

EN

AN

D T

OR

QU

E T

O2

7 N

-m (

24

0 in

-lb

)

02

-80

67

04

-P

HA

SE

A

02

-80

67

04

-P

HA

SE

B

02

-80

67

04

-

PH

AS

E C

02

-80

67

07

-

02

-80

67

05

-

02

-80

67

16

-

F4

2 &

F4

3

(-)

DC

BU

SB

AR

53

19

88

G2

53

19

85

G1

53

19

83

G1

53

19

85

G2

53

19

84

G1

53

19

85

G3

53

19

88

G1

53

20

61

G1

53

20

62

G1

De

tail

A

DE

TA

IL A


WH P/NSTART

(Part A - Rectifier Cabinet)FINISH

(Part B - Inverter Cabinet) LABEL

531985G1 UPSC (Control Door) 02-806704-Inverter Gate Drive A To: 02-806704- Phase A ID: P0400A

531988G2 UPSC (Control Door) 02-806707-Load Vi To: 02-806707-ID: P0700

531983G1 UPSC (Control Door) 02-806707-Load Vi To: 02-806707- ID: P0701

531985G2 UPSC (Control Door) 02-806704-inverter Gate Drive B To: 02-806704-Phase B ID: P0400B

531985G3 UPSC (Control Door) 02-806704-Inverter Gate Drive C To: 02-806704-Phase C ID: P0400C

531984G1 UPSC (Control Door) 02-806705-Bypass Control Board To: 02-806705-ID: P0500

531988G1 UPSC (Control Door) 02-806705-Bypass Control Board To: 02-806705-ID: P0501

532061G1 Power Supply 02-806716-AC Distribution BoardTo: 02-806716-__Connection ID: P1305WH P/N: 532061G1

532062G1 Power Supply 02-806705- Bypass Control BoardTo: 02-806705-__Connection ID: P44WH P/N: 532062G1

532062G1 Power Supply F42-2 & F43-2 Bypass PS Fuse Block To: F42-2 and F43-2WH P/N: 532062G1


Figure 39 Shipping Split, 625/750kVA Liebert® NXL™, SMS and 1+N multi-module unit with static bypass, continued

Low

Volta

ge W

ire C

onne

ction

s Betw

een P

arts

B an

d AW

ires a

re co

iled a

nd tie

d in P

art B

.Un

coil,

route

and c

onne

ct wi

res i

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WH P/NStart

(Part B - Inverter Cabinet)Finish

(Part A - Rectifier Cabinet) Label

532049G1 02-806716-AC Distribution Board 02-806710- Fan Interface Board 1To: 02-806710-__Connection ID: P1011WH P/N: 532049G1

532065G1 02-806710-Fan Interface Board 2 02-806710- Fan Interface Board 1To: 02-806710-__Connection ID: P66WH P/N: 532065G1

532063G1 DC Fuse 02-806708- External Interface BoardTo: 02-806708-__Connection ID: P0814WH P/N: 532063G1

532065G1 02-806710-Fan Interface Board 3 02-806708- External Interface BoardTo: 02-806708-__Connection ID: P99BWH P/N: 532065G1


Figure 40 Single-input wire cabinet

M6 hardware for Ground Plate

provided in shipped-loose bag

inside Wire Cabinet

Remove Side Panels From Left Side of Rectifie

r Cabinet

and Install on Left Side of Wire Cabinet

M10 Hardware

Provided in

Shipped-Loose

Bag Inside

Wire Cabinet

Kickplate is provided as a

shipped-loose item

inside the Wire Cabinet

on inverter-side the UPS

Cabinet-to-Cabinet

Connection Hardware

DETAIL A

Reference of Rectifier

Corner Post

See Detail A

Remove upper and lower

internal panels before attaching

wire cabinet to UPS

Reference of Wire CabinetCorner PostSee Detail A

Rectifier

Cabinet

Corner Posts

Wire Cabinet

Corner Posts

Rectifier (

Not A

ll Components S

hown)

Wire

Cabinet

This hardware provided

on Rectifer Cabinet.

Reuse hardware

to mount ground plate

1 Ground Plate

Bolt

and

Washer

Bolt and Washer

Bolt and Washer

DETAIL B

B

COMPLETE ASSEMBLY


Figure 41 Alternate Liebert® NXL™ 500kVA bottom cable entry

Phase A and Phase B busbars can be removed to ease bottom cable entry on the Liebert® NXL™ 500kVA. The cables can be pulled and lugged.

1. Install Phase C cables.2. Install Phase B busbar as shown in Figure 41.3. Install Phase B cables.4. Install Phase A busbar as shown in Figure 41.5. Install Phase A cables.6. Verify that all busbar bolt connections are torque properly.

Liebert® NXL™

500kVA Rectifier

Front View with Busbars

and Breaker

Liebert® NXL™

500kVA Rectifier

Front View without Phase A

and Phase B Busbars

Phase A Busbar

Phase B Busbar

Phase C Busbar

DETAIL A

Torque Specifications

See Detail A

for Torque

Specifications

Glastic to

Bus Torque

240 in-lb,

Typical

Bolt-Nut to

Bus Torque

240 in-lb, Typical


4.1 Programmable Relay BoardThe Programmable Relay Board (PRB) provides a means to trigger an external device when an event occurs in the Liebert® NXL™. Each PRB has eight channels. Each channel has Form-C dry contacts rated at 1A @ 30VDC or 125VAC @ 0.45A.Any alarm/event can be programmed to any channel or channels. Up to four (4) events can be programmed to a relay. If multiple events are grouped to one relay, group the events logically to simplify troubleshooting when an event is triggered. The same alarm/event can be programmed to more than one channel. Up to two Programmable Relay Boards can be installed in the Liebert® NXL™ for a total of 16 channels. Programming is performed through the HMI touchscreen display.

Figure 42 Control wiring, Programmable Relay Board

NOTEUp to two (2) PRB’s can be installed in the Liebert® NXL™.


BlockChanne

lPin No.

Common

Normally Closed

Normally Open

J71

CH1

A 1-3 1 2 3B 4-6 4 5 6

CH2

A 7-9 7 8 9B 10-12 10 11 12

CH3

A 13-15 13 14 15

J72

B 1-3 1 2 3

CH4

A 4-6 4 5 6B 7-9 7 8 9

CH5

A 10-12 10 11 12B 13-15 13 14 15

1 2 3 6 7 8 94 105 111213141516

1 2 3 6 7 8 94 105 11 121314 1516

1 2 3 6 7 8 94 105 11121314 1516

1 2 3

J74

J71

J72

J73

1. Customer control wiring connection points are terminals 1 through 15. (Pin 16 not used on J71, J72, and J73.)

2. Programmable Relay Board option includes eight signal channels with two Form-C dry contacts per channel (see Table 12).


4. Contact ratings: 1A @ 30VDC or 125VAC @ 0.45A

5. Maximum cable length 500 ft. (152m) with #16AWG and flexible stranded cable.

6. All wiring must be in accordance


TB3

CH6

A 1-3 1 2 3B 4-6 4 5 6

CH7

A 7-9 7 8 9B 10-12 10 11 12

CH8

A 13-15 13 14 15J74 B 1-3 1 2 3

Note: Pin 16 not used on J71, J72, and J73.


BlockChanne

lPin No.

Common

Normally Closed

Normally Open


5.0 SPECIFICATIONSTable 13 Liebert® NXL™ UPS specifications

Model Size 500kVA 625kVA 750kVAInput Parameters

Input Voltage to Rectifier, VAC 480V 3-phase,3-wire

480V 3-phase,3-wire

480V 3-phase, 3-wire575V 3-phase, 3-wire600V 3-phase, 3-wire

Input Voltage to Bypass, VAC 480V 3-phase,3-wire or 4-wire

480V 3-phase,3-wire or 4-wire

480V 3-phase, 3-wire or 4-wire575V 3-phase, 3-wire or 4-wire600V 3-phase, 3-wire or 4-wire

Input Voltage Range, VAC +10% to -15; -15% to -20%1; -20% to -30%2; <-30%3

Input Frequency, Hz 60Permissible Input Frequency Range, Hz 55 to 65

Reflected Input THDi, Nominal Voltage, Full Load, % <5%Power Walk-In, sec 1 to 30 (selectable) in 1 sec. Increment

Bypass Neutral Current up to 1.7 times full-phase current Battery & DC Parameters

Battery Type VRLA (Valve Regulated Lead Acid) or FLA (Flooded Lead Acid)Nominal Battery Bus, VDC 480V

Battery Float Voltage, VDC 540VMinimum End of Discharge Voltage, VDC 384V (for VRLA / Flooded Lead Acid)

DC Ripple Voltage in Float & Const V Ch. Mode, % <1 (RMS value) < 3,4% VppTemperature Compensated Battery Charging Optional (with temperature probe)

Output ParametersInverter Type IGBT-based Sine-Sine PWM Controlled

Output Power for 0.9 PF Rating, kW 450 562.5 675

Output Voltage, VAC 480V 3-ph,4-wire

480V 3-ph,4-wire

480V 3-ph, 4-wire575V 3-ph, 4-wire600V 3-ph, 4-wire

Output Voltage Regulation, % < 1% (3-phase RMS average)Output Voltage Regulation (100% Unb. Load) < 2% (3-phase RMS average)

Output Frequency, Hz 60Output Frequency Regulation, % ± 0.1

Output THDv Linear Load at Nominal Voltage, % <2% Output THDv at Nominal Voltage

Including a 100kVA Non Linear Load per EN 62040-3, % 2.5% (max)

Capacity to Handle High Crest Factor Load 3:1Capacity to handle Step Load, % 0-100 or 100-0

Step Load Transient Recovery (linear loads), % Within 5% peak-to-peak in one line cycle.Unbalance Loads Current Capacity 100% of nominal phase current

Capacity to Handle Leading PF Load

0.9 lag to Nom Subject to Max. kW ratingat 0.95 Lead Subject to Max. kW rating

at 0.9 Lead Subject to 12.5% kW derate or same Rating and 10°C Temp. DerateVoltage Displacement, ° el 120° ±1° el (with 100% unbalanced load)

Compliance to FCC Class-A Standard

Overload Conditions, % FL105% for 85 minutes110% for 60 minutes125% for 10 minutes

150% for 1 minute1. The UPS will operate at full load, but the battery charge will either be reduced or Off (depending on input current).2. The UPS will operate at full load, but UPS may source share with the batteries (depending on input current).3. UPS will be in Battery mode


Physical Parameters and Standards, in (mm) Width, With Static Bypass 111.6 (2835) 140.5 (3568)

Width, without Static Bypass 111.6 (2835) 125 (3175) Depth 39.4 (1000) 39.4 (1000)

Height 76.8 (1950) 76.8 (1950) Weight, Unpackaged, lb. (kg) approx.,

with Static Bypass (SMS) 10,310 (4676) 13,650 (6192)

Weight, Unpackaged, lb. (kg) approx.,with Static Bypass (1+N) 10,410 (4721) 13,800 (6260)

Weight, Unpackaged, lb. (kg) approx.,without Static Bypass (N+1) 10,210 (4631) 13,100 (5950)

Max heat Dissipation, Full Load, BTU/hr 124,805 167,265 480V: 213,587575V: 215,790600V: 200,173

Cooling Air CFM 8113 15,760 15,760 Color Black (ZP-7021)

Front Door Opening (for serviceability) More than 180° Degree of Protection for UPS Enclosure IP 20 (with and without front door open)

Minimum Clearance, Top, in (mm) 24 (610)Minimum Clearance, Back, in (mm) 0Minimum Clearance, Sides, in (mm) 0

Location of Cable Entrance Top or Bottom

Standards and Conformities

UL 1778, 4th Ed.CSA 22.2 107.3

FCC Part 15, Class AIEC62040-2, Level 4, Criteria A

EN61000-4-3, Level 3, Criteria AEN61000-4-6, Level 4, Criteria A

EN61000-2-2, Criteria AEN61000-4-4, Level 4, Criteria A

ANSI C62.41, Category A3 &B3ISTA Procedure 1HIBC 2012/CBC 2010

WEEE Environmental Parameters

Storage Temperature Range, °F (°C) -13 to 158 (-25 to 70) Operating Temperature Range, °F (°C) 32 to 104 (0 to 40) (UPS)

Relative Humidity 95% or lessNon-Condensing (Operating and Non-Operating)

Maximum Altitude Above MSL, ft (m) 4920 (1500) (as per IEC 62040/3) - 1% Maximum kW derate / 328 risebetween 4921-9842 (100m rise between 1500-3000m)

1. Width dimensions are with side panels attached. Subtract 1.4" (35mm) for dimensions without side panels.2. Depth dimensions include the front door and rear panel.

Table 14 Current ratings—rectifier input UPS Rating

VoltageVAC

NominalCurrent

MaximumCurrentkVA kW

500 450 480 643 804

625 562.5 480 799 999

750 675 480 975 1219

750 675 575 815 1018

750 675 600 759 949

Table 13 Liebert® NXL™ UPS specifications (continued)Model Size 500kVA 625kVA 750kVA


Notes on Tables1. Nominal input current (considered continuous) is based on full-rated output load. Maximum current

includes nominal input current and maximum battery recharge current (considered noncontinuous). Continuous and noncontinuous current are defined in NEC 100.

2. Maximum input current is controlled by the current limit setting, which is adjustable. Values shown are for maximum current limit. If a smaller input feed breaker is used, the input current limit can be adjusted. Contact your Vertiv representative for more information.

3. The Rectifier Input Feed Breaker must be set to handle the ®NXL transformer inrush of up to eight times the nominal current.

4. For breaker coordination while the module is overloaded, see the current-versus-time values on the overload curves in Figures 43 and44.

5. Nominal battery voltage is shown at 2V/cell.

Table 15 Current ratings—bypass input UPS Rating

VoltageVAC

NominalCurrentkVA kW

500 450 480 601

625 562.5 480 752

750 675 480 902

750 675 575 753

750 675 600 722

Table 16 Current ratings—outputUPS Rating

VoltageVAC

NominalCurrentkVA kW

500 450 480 601

625 562.5 480 752

750 675 480 902

750 675 575 753

750 675 600 722

Table 17 Current ratings—battery UPS Rating Voltage

VACNominal

VDCMaximum Battery

Current at EODkVA kW500 450 480 480 1241

625 562.5 480 480 1530

750 675 480 480 1845

750 675 575 480 1851

750 675 600 480 1845


Table 18 Recommended conduit and cable sizesRectifier Input

UPS Rating

Voltage

(VAC)

(# of conduits); size of conduits; # -size of phase cables per conduit; size of cable for ground per conduit

kVA kW Copper Conductors Aluminum Conductors

500 450 480 (3) 3C, 3-500kcmil, #2/0AWG (3) 3C 3-600kcmil, #4/0AWG

625 562.5 480 (3) 3C 3-600kcmil, #3/0AWG (4) 3C 3-500kcmil, 250kcmil

750 675 480 (4) 3C, 3-600kcmil, #4/0AWG (5) 3C 3-600kcmil, 350kcmil



Bypass Input

UPS Rating

Voltage

(VAC)

(# of conduits); size of conduits; #-size of phase cables per conduit;#-size of neutral cables per conduit; size of cable for ground per conduit


500 450 480 (3) 4C, 4-600kcmil, 2-250kcmil, #1/0AWG (4) 3C 4-500kcmil, 2-400kcmil, #3/0AWG

625 562.5 480 (3) 4C 4-600kcmil, 2-250kcmil, #2/0AWG (4) 3C -600kcmil, 2-500kcmil, #4/0AWG

750 675 480 (4) 3.5C, 4-500kcmil, 2-500kcmil, #3/0AWG (5) 3C 4-500kcmil, 2-500kcmil, 250kcmil



Output

UPS Rating

Voltage

(VAC)

(# of conduits); size of conduits; #-size of phase cables per conduit;#-size of neutral cables per conduit; size of cable for ground per conduit



625 562.5 480 (3) 4C 4-600kcmil, 2-250kcmil, #2/0AWG (4) 3C -600kcmil, 2-500kcmil, #4/0AWG

750 675 480 (4) 3.5C, 4-500kcmil, 2-500kcmil, #3/0AWG (5) 3C 4-500kcmil, 2-500kcmil, 250kcmil



Battery

UPS Rating (# of conduits); size of conduits; # -size of phase cables per conduit; size of cable for ground per conduit


500 450 (4) 2.5C, 2-500kcmil, #4/0AWG (5) 2.5C 2-500kcmil, 350kcmil

625 562.5 (4) 2.5C 2-600kcmil, #4/0AWG (5) 2.5C 2-600kcmil, 350kcmil

750 675 (5) 3C, 2-600kcmil, 250kcmil (6) 2.5C 2-600kcmil, 400kcmil

Bonding


UPS Rating Main Bonding Jumper/Grounding Electrode Conductor


500 450 (1) #4/0AWG/ (1) #4/0AWG (1) #4/0AWG/ (1) #4/0AWG

625 562.5 (1) 250kcmil/ (1) 250kcmil (1) 250kcmil/ (1) 250kcmil

750 675 (1) 250kcmil/ (1) 250kcmil (1) 250kcmil/ (1) 250kcmil 1. Recommended cable sizes are 167°F (75°C) (THW) wire at 86°F (30°C) ambient. Unless otherwise noted, use copper or aluminum

conductors suitable for at least 75°C.2. For continuous operations not at 86°F (30°C), recommend that the site planner choose the appropriate cable type based on the

particular installation requirements.3. Conduit size is based on FMC type conduit with two neutral conductors rated at 200% of phase.

Table 18 Recommended conduit and cable sizes


Figure 43 Inverter overload data

Tim

e, se

co

nd

sL

oa

d, P

erc

en

t

Time, seconds

Continuous

13

63

60

40

25

15

10

64

21

0.5

10

01

59

25

03

94

60

0

93

7

50

00

37

48


Figure 44 Bypass overload data

10

0

0

50

0

15

00

10

00

20

00

30

00

40

00

50

00

25

00

35

00

45

00

11

0

11

0%

Lo

ad

- 1

5,0

00

Se

co

nd

s

Lo

ad

, P

erc

en

t

Tim

e, S

eco

nd

s

Time, Seconds

Continuous

12

01

30

14

01

50

16

01

70

18

01

90

20

0

30

00

60

0

39

4

25

01

59

10

06

06

42

10

.54

02

51

51

0


Table 19 Recommended lug sizes

Cable Size T&B Copper

One Hole T&B Copper

Two Hole T&B Aluminum

One Hole T&B Aluminum

Two Hole

#8 AWG 54930BE 54850BE 60104-TB —

#6 AWG 54905BE 256-30695-868 60109-TB —

#4 AWG 54906BE 256-30695-733 60114-TB —

#2-3 AWG 54942BE 54811BE 60120 —

#1 AWG 54947BE 54857BE 60126 —

#1/0 AWG 54950BE 256-30695-593 60132 —

#2/0 AWG 54951BE 54862BE 60138 60238

#3/0 AWG 54965BE 54864BE 60144 60244

#4/0 AWG 54970BE 54866BE 60150 60250

250kcmil 54913BE 54868BE 60156 60256

300kcmil 54914BE 54870BE 60162 60262

350kcmil 54915BE 54872BE 60165 60267

400kcmil 54916BE 54874BE 60168 60269

500kcmil 54918BE 54876BE 60171 60273

600kcmil 54920BE 54878BE 60176 60275

750kcmil 54922BE 54880BE 60178 60277

Table 20 Recommended torque valuesGrade 5 Steel: Unified Thread System Torque, lbf.*in. Class 8.8 Steel: Metric Thread System Torque, Nm*

Fastener Finish Plain Steel Zinc Plating Fastener Finish Plain Steel Zinc Plating

SizeThreads/Inch, Tpi

No Washer/Flat Washer

No Washer/Flat Washer Size

ThreadPitch, Tp



1/4 20 101 91

M50.8 6.1 5.5

28 116 104 0.5 6.9 6.2

5/1618 209 188

M61 10 9

24 231 208 0.75 11 10

3/8 16 370 333

M81.25 25 23

24 420 378 1 27 24

7/1614 593 534

M101.5 50 45

20 662 596 1.25 53 47

1/213 904 814

M121.75 87 78

20 1,020 918 1.25 95 86

9/1612 1,305 1,175

M142 139 125

18 1,456 1,310 1.5 151 136


NOTES


VertivCo.com | Vertiv Headquarters, 1050 Dearborn Drive, Columbus, OH, 43085, USA

© 2018 Vertiv Co. All rights reserved. Vertiv and the Vertiv logo are trademarks or registered trademarks of Vertiv Co. All other names and logos referred toare trade names, trademarks or registered trademarks of their respective owners. While every precaution has been taken to ensure accuracy andcompleteness herein, Vertiv Co. assumes no responsibility, and disclaims all liability, for damages resulting from use of this information or for any errors oromissions. Specifications are subject to change without notice. SL-25434_REV17_8-18/590-1963-501A

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