circuit breaker 3VA6 UL frame 600 breaking capacity class L 150kA @ 480V 3-pole, line protection ETU830, LIG, In=400A overload protection Ir=160A...400A short-circuit protection Ii=1.5...12 x In ground-fault protection Ig=0.2...1 x In, tg=0.05-0.8s without connection