© STO/G - page 1Juni 2009

ABB i-bus®

Uninterruptible Power Supply Unit NTU/S 12.2000.1

Productinformation

STO/G – page 2Juni 2009

Overview Uninterruptible Power Supply Unit NTU/S 12.2000.1

Universal power supply unit(95…264 V AC)

Buffered voltage of 12 V DC at a max. current of 2 A

Change-over contact(Signals malfunction of the battery, mains power failure and overload/short-circuit)

Integrated overload protection

STO/G – page 3Juni 2009

Overview Uninterruptible Power Supply Unit NTU/S 12.2000.1

Compatible with all standard battery types (SAK 7, SAK 12, SAK 17 and the battery module AM/S 12.1)

Connection of the accumulator overpre-fabricated cable sets(KS/K 4.1 and 2.1)

Electronic battery monitoring

Soft-start function of the battery for starting up the device

STO/G – page 4Juni 2009

Overview Uninterruptible Power Supply Unit NTU/S 12.2000.1

Change-over contact

Mains voltage

LEDs

mains power supply battery supply normal operation near overload malfunction

Battery Start-Up button

12 V output

Battery and PTC connector

STO/G – page 5Juni 2009

Application Uninterruptible Power Supply Unit NTU/S 12.2000.1

Uninterruptible operation of:

12 V DC components of I&HAS* (Motion detectors, technicalsensors, signaling device, …)12 V DC KNX-devices (IP-Router, Zone Terminal, Telephone gateway, …)All other devices using 12 V DCSupplementary power supply forI&HAS*

* Intrusion and hold-up alarm systems

STO/G – page 6Juni 2009

Technical data (Mains voltage) Uninterruptible Power Supply Unit NTU/S 12.2000.1

Mains voltage: 95…264 V AC

Mains frequency: 45…65 Hz

Power consumption: < 55 VA

Leakage loss: < 8 W

STO/G – page 7Juni 2009

Technical data (Storage battery connection) Uninterruptible Power Supply Unit NTU/S 12.2000.1

Charging current:

Storage battery > 5 Ah: 1 A

Storage battery < 5 Ah: 150 mA

STO/G – page 8Juni 2009

Technical data (Output) Uninterruptible Power Supply Unit NTU/S 12.2000.1

Output voltage:13 V +/- 0.5 V SELV

Output current:max. 2 A

STO/G – page 9Juni 2009

Technical data (Change-over contact) Uninterruptible Power Supply Unit NTU/S 12.2000.1

max. switching voltage:

230 V AC od. 5-12 V DC

max. switching current:

1 A at 230 V AC or4-10 mA at 5-12 V DC

STO/G – page 10Juni 2009

Range of application Uninterruptible Power Supply Unit NTU/S 12.2000.1

Uninterruptible Power Supply Unit NTU/S 12.2000.1 Connectable devices

2-fold Zone Terminal MT/U 2.12.1

4-fold Zone Terminal MT/S 4.12.1IP-Router IPR/S 2.1

IP-Interface IPS/S 2.1

Telephone Gateway TG/S 3.2

Universal I/O-Concentrator UK/S 32.2

Technical sensors (gas detector, water detector, …)

Motion detectors

all other devices using 12 V DCDetailed auxiliary equipment on page 14

STO/G – page 11Juni 2009

Discharge curve of storage batteries Uninterruptible Power Supply Unit NTU/S 12.2000.1

STO/G – page 12Juni 2009

Auxiliary equipment Uninterruptible Power Supply Unit NTU/S 12.2000.1

12 V DC lead gel storage batteriesSAK 7 (7 Ah)SAK 12 (12 Ah)SAK 17 (17 Ah)

12 V DC Battery module, MDRCAM/S 12.1 (8 HP)

Cable setsKS/K 4.1 (Basic cable set incl. temperature sensor and microfuse)KS/K 2.1 (Advanced cable set forparallel connection of storage batteriesincl. microfuse)

STO/G – page 13Juni 2009