Applications
DZ12 series moulded case circuit breaker are mainly applied to AC50Hz，rated current to 63A，single phase 230V and three-phase 400V， It also can be used for overload and short circuit protect. and switching the circuit infrequenly under the normal working conditions。
The products conform to the IEC 60898-1 standard.
Normal operation and mounting requirements
1.The ambient temp.shuold not be higher than +40℃ and not lower than -5℃ and the average temp. of 24 hours shuld not exceed +35℃.
2、The altitude:≤2000m;
3、The atmospheric relative humidity should not exceed 50% when the highest ambient temp. is +40℃, Higher humidity maybe allowed at a lower temp. Take measures to solve the dews on the brekers caused by the temp. variation
4、Pollution degree:2;
5、Installation type: Main circuitⅢ
6、Not execeed the five times of the overall magnetic field
7、Vertical installation;
8、The place of installation should no obvious libration.
Construction Features
1、The circuit breakers are composed with handle, operation system、tripping device、and contact
2、in the 2 poles、3poles, it have connecting tripping device, so it will not making single phase breaking.
