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GTD20A
Installation Instructions
BRANCH CIRCUIT
TRANSFER SWITCH/LIGHTING CONTROL DEVICE
! IMPORTANT SAFEGUARDS !
READ AND FOLLOW ALL SAFETY INSTRUCTIONS
1. This product is for use with generator-supplied (or central inverter system-supplied) lighting loads. Make sure all
connections are in accordance with the National Electrical Code and any local regulations.
2. To reduce the risk of electric shock, disconnect all power sources before servicing.
3. This product is for field installation.
4. This product is for use in indoor or damp locations where the ambient temperature is -20ºC minimum, +55ºC
maximum.
5. This product is UL Listed as either a Branch Circuit Emergency Lighting Transfer Switch (BCELTS) under UL 1008
or a Switch Bypass under UL 924. Use the proper wiring diagram in the appropriate section of these instructions.
6. An unswitched, normal AC power source (120 through 277 VAC, 50/60 Hz) and a direct, separate connection to a
generator-supplied or central inverter system-supplied emergency panel are required.
7. The use of accessory equipment not recommended by the manufacturer may cause an unsafe condition.
8. Do not use this product for other than intended use.
9. Servicing should be performed by qualified service personnel.
CAUTION:
NOTE: BEFORE INSTALLING THE CONTROL DEVICE, MAKE SURE THAT THE NECESSARY BRANCH
CIRCUIT WIRING IS AVAILABLE. AN UNSWITCHED SOURCE OF NORMAL POWER IS REQUIRED. A SEPARATE
CONNECTION TO A GENERATOR-SUPPLIED (OR CENTRAL INVERTER SYSTEM-SUPPLIED) CIRCUIT MUST ALSO
BE PROVIDED.
236 Mt. Pleasant Rd. • Collierville, TN 38017-2752 • Tech Support 888-263-4638 • Fax 901-853-5009 • www.philips.com/bodine
SAVE THESE INSTRUCTIONS
THIS UNIT HAS MORE THAN ONE POWER SUPPLY CONNECTION POINT. TO REDUCE
THE RISK OF ELECTRIC SHOCK, DISCONNECT ALL POWER SOURCES BEFORE
INSTALLING OR SERVICING THIS UNIT.
SERVICE BY QUALIFIED PERSONNEL ONLY
© Philips Emergency Lighting
WHEN USING ELECTRICAL EQUIPMENT, BASIC
SAFETY PRECAUTIONS SHOULD ALWAYS BE
FOLLOWED, INCLUDING THE FOLLOWING:
06/19/18
70100047
UL 1008-BCELTS
UL 924-Switch Bypass
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Summary of Contents for Bodine GTD20A
- Page 1 CIRCUIT WIRING IS AVAILABLE. AN UNSWITCHED SOURCE OF NORMAL POWER IS REQUIRED. A SEPARATE CONNECTION TO A GENERATOR-SUPPLIED (OR CENTRAL INVERTER SYSTEM-SUPPLIED) CIRCUIT MUST ALSO BE PROVIDED. 06/19/18 © Philips Emergency Lighting 236 Mt. Pleasant Rd. • Collierville, TN 38017-2752 • Tech Support 888-263-4638 • Fax 901-853-5009 • www.philips.com/bodine 70100047...
- Page 2 MOUNTING THE GTD20A > FAMILIARIZE YOURSELF WITH THESE INSTRUCTIONS BEFORE BEGINNING INSTALLATION. > Mount GTD20A in a convenient location using appropriate hardware (not supplied). See Illustration 1 for typical installation. DO NOT MOUNT WITH LID FACING DOWN (See Illustration 2).
- Page 3 NEUTRAL NEUTRAL NEUTRAL GTD20A as a BCELTS Device for a Dimming Rack *NOTE: Wire gauges for ALL leads terminating at T2 should be #18 AWG. Wire gauges for all other connections should be sized according to total connected lighting load.
- Page 4 CONTROL NEUTRAL TO DIMMING DRIVERS SWITCHED HOT NEUTRAL GTD20A as a BCELTS Device with a 3-wire Dimming System ILLUSTRATION 6 * WIRE GAUGES FOR ALL LEADS TERMINATING AT T2 SHOULD BE #18 AWG. GTD20A * JUMPER CONNECTIONS ON T1 AND T2 ARE CONTRACTOR INSTALLED.
- Page 5 DRIVERS NEUTRAL DIMMED HOT GTD20A as a Switch Bypass Device with a 3-wire Dimming System *NOTE: Wire gauges for ALL leads terminating at T2 should be #18 AWG. Wire gauges for all other connections should be sized according to total connected lighting load.
- Page 6 OPERATION The GTD20A uses an internal relay contact to control the AC power feeding the lighting load. When the generator (or central inverter) supplies AC power to the lighting fixture, the GTD20A bypasses the local switching means or dimmer.
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