MANUAL TRANSFER TYPE. 27-7/16 INCH W X 14-1/8 INCH D X 86-1/8 INCH H SIZE. 3 WIRE(S). UL APPROVAL. NEMA 1 ENCLOSURE. 600 AMPERE CURRENT RATING. 75 HP AT 240 VAC 3 PHASE, 50 HP AT 250 VDC POWER RATING.