circuit breaker 3VA6 UL Frame 400 breaking capacity class M 35 kA @ 480 V 3-pole, line protection ETU320, LI, In=400 A overload protection Ir=160 A...400 A short-circuit protection Ii=1.5...10 x In without connection circuit breaker 3VA6 UL Frame 400 breaking capacity class M 35 kA @ 480 V