Wiring - Typical wiring color codes

Power Wiring

120/240 Volt 277/480 Volt
Black Phase 1 Brown Phase 1
Red Phase 2 Orange Phase 2
Blue Phase 3 Yellow Phase 3
White Neutral Gray Neutral
Green Ground

Green w/
Yellow stripe


Note: Orange or yellow wires may be energized with the main disconnect off.


DC Wiring

DC + Blue
DC - Blue with white stripe