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Application

DW17 series conventional circuit breaker (hereinafterreferred to as circuit breaker) is featured with compactstructure, small volume, light weight, strong systematicness,favorable interchangeability of components, completeprotection functions, high technical economical index,convenient maintenance, easy operation, etc.

This circuit breaker is applicable to circuits of 50Hzwith rated working voltage up to 660V, used for powerdistribution and infrequent switching of circuits; it protectsthe circuitry and electric equipment against overload,under-voltage or short-circuit, it also has function ofgrading selective protection; it is able to start the motordirectly, and protect the motor, generator and rectifierunit against overload, short-circuit, under-voltage orother abnormal conditions.

Technical performances of circuit breaker are inaccordance with the standards IEC60947-2 andGB14048.2.

Normal working condition and mounting conditions

Ambient temperature: -5℃ ~ 40℃, daily average over 35℃

Altitude not more than 2000m;

Ambient conditions: relative humidity not more than 50% at 40, if lower temperature humidity can be higher, on the month when maxi average humidity occurs the Temperature shall be not more than 25℃, on this month the maxi average humidity shall not more ?than 90%, and there has considered the mist covering the product

Polluted class: 3 grade

Installation class: 3 grade

Mounting conditions: the mounting inclined angle shall not more than +5°Impact vibration: there shall have no severe vibration, impact and vibration.

Model