circuit breaker 3VA6 UL Frame 150 breaking capacity class M 35 kA @ 480 V 4-pole, line protection ETU850, LSI, In=150 A overload protection, 100% rated Ir=60 A...150 A short-circuit protection Isd=0.6..10x In, Ii=1.5..10x In neutral conductor protection adjustable (OFF, up to 100%) without connection