Motor Calculations

Canadian Electrical Code, Three Phase, 575 VAC, 60 Hz, Squirrel Cage H.P.28-704(2) F.L.A28-704(2) DisconnectRating 115%28-602(b) DisconnectSize T.D. Fuse Size175% F.L.A.28-200(1) Time DelayFuse Size 1/2 0.9 1.035 30A 1.575 1-1/4 3/4 1.3 1.495 30A 2.275 2 1 1.7 1.955 30A 2.975 2-1/2 1-1/2 2.4 2.76 30A 4.2 3 2 2.7 3.105 30A 4.725 4 3 3.9Continue reading “Motor Calculations”