circuit breaker 3VA6 UL Frame 400 breaking capacity class L 150 kA @ 480 V 3-pole, line protection ETU560, LSIG, In=250 A overload protection, 100% rated Ir=100 A...250 A short-circuit protection Isd=0.6..10x In, Ii=1.5..12x In neutral conductor protection optionally with external current transformer, up to 160% ground-fault protection Ig=0.2...1 x In, tg=0.05-0.8s without connection