circuit breaker 3VA2 IEC frame 160 breaking capacity class L Icu=150kA @ 415V 4-pole, line protection ETU330, LIG, In=25A overload protection Ir=10A…25A short-circuit protection Ii=1.5…12 x In N conductor protection adjustable (OFF, 100%) ground-fault protection Ig=0.6…1 x In= tg=0.1/0.3s nut keeper kit