... distribution system.3.With beautiful shape, compact size, light weight, reliable performance, high breaking capacity, tripping rapidly, rail mounting, ... is mainly used in AC 50Hz/60Hz single-pole 230V , two, three, four-pole 400V circuit overload, short-circuit protection5. ... degree rated currentThe main technical parameters:1, poles : single-pole, two, three, four pole.2, rated current : 1A, 3A, 6A, ...