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circuit breaker 3VA2 IEC frame 1000 breaking capacity class M Icu=55kA @ 415V 3-pole, line protection ETU320, LI, In=800A overload protection Ir=320A...800A short-circuit protection Ii=1.5...12 x In nut keeper kit shunt trip (STL) 220-250V DC, 208-277V A
