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circuit breaker 3VA2 IEC frame 1250 breaking capacity class C Icu=110kA @ 415 V 3-pole, line protection ETU330, LIG, In=1250A overload protection Ir=500A ...1250A short circuit protection Ii=1,5...10 x In ground-fault protection Ig=0,2... 1 x In, tg=0,
