circuit breaker 3VA6 UL Frame 600 breaking capacity class H 65 kA @ 480 V 4-pole, line protection ETU350, LSI, In=600 A overload protection Ir=240 A...600 A short-circuit protection Isd=1.5...9 x Ir, Ii=9x In neutral conductor protection adjustable (OFF, 50%, 100%) without connection circuit breaker 3VA6 UL Frame 600