Автоматический выключатель 3VA2 IEC Frame 400 Switching capacity class M Icu=55 kA @ 415 V 4-pole, system protection ETU550, LSI, In=400 A Overload protection Ir=160 A. ..400 A short-circuit protection Isd=0.6..10x In, Ii=1.5..10x In N-conductor protectio