GENERAL DUTY TYPE; 21.57 INCH W X 8.9 INCH D X 49.22 INCH H SIZE; 3 WIRE(S); UL 98, CSA APPROVAL; NEMA 3R ENCLOSURE; 400 AMPERE CURRENT RATING; 50 HP AT 240 VAC 3-PHASE (NEC STANDARD), 100 HP AT 240 VAC 3-PHASE (TIME DELAY) POWER RATING; 3 POLE(S)