circuit breaker 3VA2 IEC frame 100 breaking capacity class C Icu=110kA @ 415V 3-pole, line protection ETU860, LSIG, In=63A overload protection Ir=25A…63A short-circuit protection Isd=0.6..10x In, Ii=1.5..12x In N conductor protection optionally with external current transformer, up to 160% gr.-fault prot., can be sw. off Ig=0.25…1 x In, tg=0.05-0.8s nut keeper kit