This electrical schematic details the wiring connections for a generator transfer device interfacing between an emergency circuit breaker panel and a normal circuit breaker panel. The GTD2A electronics cover houses GTD20A terminal blocks with numbered connections linking hot and neutral wires from both power sources to the local switching means and the lighting load rated up to twenty amperes. Upon failure of the normal room lighting circuit, the device transfers the light fixture to the emergency lighting circuit to maintain exit illumination. An affixed label on the emergency light fixture indicates that it is fed from two power sources.
1 2 3 4 5 6 1 2 3 4 5 6 7 HOT NEUTRAL HOT NEUTRAL T1* T2* NOTES: 1. FAILURE OF NORMAL ROOM LIGHTING CIRCUIT WILL TRANSFER THE LIGHT FIXTURE TO THE EMERGENCY LIGHTING CIRCUIT TO PROVIDE EMERGENCY EXIT ILLUMINATION. 2. PROVIDE A LABEL ON THE EMERGENCY LIGHT FIXTURE, WHICH READS, "THIS EMERGENCY LIGHT FIXTURE IS BEING FED FROM TWO POWER SOURCES" GTD2A ELECTRONICS COVER GTD20A TERMINAL BLOCKS EMERGENCY CKT BKR PANEL LIGHTING LOAD UP TO 20 A. NORMAL CKT BKR PANEL LOCAL SWITCHING MEANS
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