circuit breaker 3VA2 IEC Frame 160 breaking capacity class H Icu=85 kA @ 415 V 3-pole, line protection ETU320, LI, In=63 A overload protection Ir=25 A...63 A short-circuit protection Ii=1.5...12 x In nut keeper kit undervoltage release (UVR) 208-230 V AC 50/60 Hz