Our Emergency Bypass / Shunt Relays are UL924 listed and suitable for shunting around wall switches in order to turn on emergency lighting in the event of loss of normal utility power.

Models can also be ordered with various configurations of LED indicators used for initial wiring verification as well as field inspection. Certain models can be ordered equipped with a wireless receiver which responds to signals transmit-ted by the ESRT remote test transmitter and are used for field inspection in ac-cordance with Article 700.3 of the 2011 NEC (National Electric Code). Still others can be used when the emergency light is needed as part of the normal lighting scheme and controlled by a single switch (models with ESRBE prefix).

UL924 Emergency Bypass / Shunt Relays• Description

• Multi-coil voltage input

• 10, 15, 20 Amp contact ratings

• Override capabilities for wiring verification and field inspection

• NEMA 1 enclosure

• Pre wired and prepackaged for convenience

• LED indicator of utility and emergency power

• Mounts easily through ½” knockout or remotely on flat surfaces

• Bright yellow color for easy identification

• Panel style for use inside control panels

• UL 924 & California State Fire Marshall

• DPDT configurations

• 5 year warranty

• Made in USA

• Features

When normal power is present, the ESR relay coil is activated and the emergency panel is fed from normal power. The lighting load can be switched on/off using an individual wall switch.

When normal power drops out, the ESR coil is deactivated and N/C contact falls closed. The automatic transfer switch changes over to backup (generator) power, and the lighting load is illuminated regardless of the position of the wall switch or controller scheme.

• Operation

Functional Devices, Inc. • p: 800.888.5538 • f: 765.883.7505 • www.functionaldevices.com/lighting-controls • sales@functionaldevices.com

FunctionalDevices, Inc.LIGHTING CONTROLS

Functional Devices, Inc. • p: 800.888.5538 • f: 765.883.7505 • www.functionaldevices.com/lighting-controls • sales@functionaldevices.comFunctionalDevices, Inc.LIGHTING CONTROLS

# Relays & Contact Type:Expected Relay Life:

Operating Temperature:Operate Time:

Relay Status:Dimensions:

Wires:Approvals:

Housing Rating:Gold Flash:Frequency:

Override (Test Switch):

One (1) SPDT Continuous Duty Coil10 million cycles minimum mechanical-30 to 140° F18mSLED On = Activated2.30˝ x 3.20˝ x 1.80˝ with .50˝ NPT Nipple16˝, 600V RatedUL Listed, UL924, C-UL, CE UL Accepted for Use in Plenum, NEMA 1No315 MHzYes - With Radio Frequency Remote (Model ESRT)

Contact Ratings: 20 Amp Resistive @ 277 Vac20 Amp Ballast N/O @ 120/277 Vac10 Amp Ballast N/C @ 120/277 Vac10 Amp Tungsten N/O @ 120 Vac770 VA Pilot Duty @ 120 Vac1,110 VA Pilot Duty @ 277 Vac2 HP @ 277 Vac1 HP @ 120 Vac

Coil Current: 83 mA @ 24 Vac75 mA @ 208-277 Vac

Coil Voltage Input: 24 Vac/dc ; 208-277 Vac ; 50-60 HzDrop Out = 2.1 Vac / 3.8 VdcPull In = 18 Vac / 22 Vdc

Wht/BrnUtility 208-277 Vac

Wht/BluUtility 24 Vac/dc

Wht/YelUtility Comm

BluEmergency Hot

N/C

YelEmergency Hot to Load

Comm

OrgN/O

Made in USAMeets

“Buy American” of ARRA 2009

ESR2402B-RFEnclosed Relay 20 Amp SPDT with 24 Vac/dc/208-277 Vac Coil

Specifications

UL924 Emergency Bypass / Shunt Relaywith Remote Test Capability

50 mA @ 24 Vdc60 mA @ 30 Vdc

Notes: • For use with ESRT Remote Tester (sold separately)

EmergencyPanel

NormalPanel

NormalNeutral

NormalBreaker

EmergencyNeutral

EmergencyBreaker

AutomaticTransferSwitch

Generatoror Inverter

Neutral

Generatoror Inverter

Hot

UtilityHot

UtilityNeutral

Wall Switch

Coil

EmergencyBypass / Shunt

Relay

N/CContact

Neutral to Load

Hot to Load

Blu

Yel

Wht/YelWht/Brn or Wht/Blu *

* Select for appropriate coil voltage.

Shunt Relay ApplicationOur Emergency Bypass / Shunt Relays are UL924 listed and suitable for shunting around wall switches in order to turn on emergency lighting in the event of loss of normal utility power.

When normal power is present, the ESR relay coil is activated and the emergency panel is fed from normal power. The lighting load can be switched on/off using an individual wall switch.

When normal power drops out, the ESR coil is deactivated and N/C contact falls closed. The automatic transfer switch changes over to backup (generator) power, and the lighting load is illuminated regardless of the position of the wall switch or controller scheme.

Battery:Expected Battery Life:

Operate Time:Dimensions:

Frequency:Radio Certifications:

CR2032, 3V, Lithium2 years500 mS2.30˝ x 1.40˝ x .50˝ 315 MHzFCC Part 15 (USA), IC (Canada)

Made in USAMeets

“Buy American” of ARRA 2009

Wireless Key Fob TransmitterESRTRemote Tester for Use with Radio Frequency-Enabled UL924 Emergency Bypass / Shunt Relays

SpecificationsNotes: • Control one or more radio frequency-enabled ESR relays with a single transmitter• Typical transmission distance: • Up to 50 feet indoors • For use with models with -RF suffix

Initial Wiring Verification1. Turn OFF Normal Power, Transfer Power, and Wall Switch.

2. Wire relay according to wiring diagram.

3. Energize Normal Power. Red LED should illuminate.

4. Energize Transfer Power. Yellow LED should illuminate.

Field Inspection

1. Turn wall switch off or disable control.

2. Point remote test transmitter (ESRT) towards ESR relay.

3. Press button on ESRT and hold until emergency light comes on, then release.

4. Emergency light will stay on for 8-10 seconds.

5. Press button on ESRT and hold until Red LED goes OFF, then release. This indicates Emergency Power will be switched to the load.

6. Red LED will remain OFF for 8-10 seconds and then return to being illuminated.

Remote Test for RF-Equipped ESR ModelsModels ESR2401B-RF, ESR2402B-RF, ESRBE01C-RF, ESRB01C-RF, ESRBE277C-RF, & ESRB277C-RF are equipped with a wireless receiver which responds to signals transmitted by the ESRT remote test transmitter. When the signal is received, the coil of the relay is disconnected, allowing the emergency power to flow to the contacts of the relay, thus switching the designated emergency lighting on. For this operation to occur, the light switch or lighting control must be off during the test procedure.

Together these models are used to enable an inspector, in accordance with Article 700.3 of the 2011 NEC (National Electrical Code), to easily activate the UL924 Emergency Bypass / Shunt Relay wirelessly with the ESRT remote test transmitter, as to prove the ability of the system to bypass the wall switch or other lighting control.

Coil

EmergencyLighting

EmergencyTransfer

EmergencyPower

NormalPower

EmergencyBypass / Shunt

Relay with Remote Test Capability

SW

Yel

Blu

ESRT