... type circuit breaker is suitable in exchanges 50/60Hz, the fixed working voltage is highest to 550V, nominal current In the ... movement threshold value 100, 300, 500 mA 33 adjustable, operating time 200mS fixed not adjustable.TypeEZC 60EEZC60BEZC100DEZC160DEZC250DPoles number33333Rated current ln(A)15, 20 ...