circuit breaker 3VA2 IEC Frame 1000 breaking capacity class M Icu=55 kA @ 415 V 4-pole, line protection ETU860, LSIG, In=1000 A overload protection Ir=400 A...1000 A short-circuit protection Isd=0.6..10x In, Ii=1.5..10x In neutral conductor protection adjustable (OFF, up to 100%) ground-fault protection, can be switched off Ig=0.2...1 x In= tg=0.05-0.8s nut keeper kit universal release 24 V DC 2 auxiliary switches HQ 1 trip alarm switch HQ 1 electrical alarm switch