Pole number: 1P,2P,3P,4P Rated voltage: 230/400V~ Rated current: 63,80,100A Rated short-circuit capacity: 10KA class a?? (IEC/EN60947-2) Rail dimension: 35mm Mechanical life: 20000 times (ON/OFF) --------------------------------------------- OUR COMPANY" 1) One of the only 3 Chinese manufacturer produce UL listed Photoelectric switches; 2) One of the only 6 Chinese manufacture produce VDE approved Circuit-breaker. ---------------------------------------------