Abb; Circuit Breaker; Voltage Rating: 600 Vac; Amperage Rating: 150 Amp; Frequency Rating: 50 - 60 Hz; Frame: 150 Amp; Trip Type: Ls/i (ac Only), Pr221; Interrupt Rating: 25 Kamp At 480 Vac; Number Of Poles: 3; Length: 4.130 In; Width: 470in; Height: 870 In; Interrupting Rating Class/breaking Capacity: Normal; Mechanical Life: 20000 Operations; Weight: 6.180 Lb; T4n150bw: Bkr T4n 150a 3p Ls/i Ullvp