Electrical · E-YJ875

Generator Transfer Device GTD Wiring Diagram

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Electrical wiring connections for a generator transfer device, commonly known as a GTD, interface between normal power, an emergency panel, a wall switch or occupancy sensor, and an AC driver fixture. Voltage sensing leads are configured for 120V black or 277V orange with unused leads capped. Separate neutral bus connections are provided for both normal and emergency panels. Color-coded wire designations including brown, red, blue, black, white, white/red, and white/black establish the proper circuit routing.

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