circuit breaker 3VM1 IEC frame 100 breaking capacity class B Icu=16kA @ 415V 4-pole, line protection TM210, FTFM, In=20A overload protection Ir=20A, not adjustable short-circuit protection Ii=16 x In N conductor unprotected nut keeper kit (for products not manufactured in China, only CE and EEQCO Scheme-X certifications are available)