... casual dismounting of connected terminals.Technical Data Pole No:1,1P+N,2,3,3P+N,4Rated voltage:AC 230/400VRated ... ,double-pole motors,motors with heavy start etc.)Nominal voltage:1P (single-pole)~230/400V 50/60Hz3P (three-pole)~400V 50 ... distinction among circuits in the switchboards,we supply also miniature circuit breaker with distinction of nominal currents by means of colored levers ...