circuit breaker 3VA2 IEC Frame 160 breaking capacity class L Icu=150 kA @ 415 V 3-pole, line protection ETU320, LI, In=160 A overload protection Ir=63 A...160 A short-circuit protection Ii=1.5...10 x In nut keeper kit circuit breaker 3VA2 IEC Frame 160 breaking capacity class L Icu=150 kA @ 415 V shunt trip left 208-277 V AC 50/60 Hz 2 auxiliary switches HQ