An electrical distribution single line diagram of a 3000-ampere bus switchboard operating at 277/480 volts, 3-phase, 4-wire with 100 kAIC fault current rating located in the arrival level main electrical room. The incoming configuration includes a spare three-pole circuit breaker rated at 175 amperes trip and 175 amperes frame, along with designated spaces and transient voltage surge suppression provisions.
ARRIVAL LEVEL MAIN ELEC. ROOM (N) SWITCHBOARD "SWB1094BP" 3000A BUS, 100KAIC 277/480V, 3PHASE, 4WIRE SPARE 175AF 175AT 3P 11 TVSS SPACES
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