circuit breaker 3VA6 UL Frame 600 breaking capacity class M 35 kA @ 480 V 4-pole, line protection ETU320, LI, In=600 A overload protection Ir=240 A...600 A short-circuit protection Ii=1.5...9 x In neutral conductor protection adjustable (OFF, 50%, 100%) without connection circuit breaker 3VA6 UL Frame 600