... single-pole 230V , two, three, four-pole 400V circuit overload, short-circuit protection5.As well as in normal circumstances frequently on ... -off electrical equipment and lighting circuit.Standard:DZ47-63 miniature circuit breakers meet the GB10963 standard.Model implication: ... :1, poles : single-pole, two, three, four pole.2, rated current : 1A, 3A, 6A, 10A, 16A, 20A, 25A, 32A, 40A ...