Molded case circuit breaker 3 phase 4 phase selection

Update date:2018-05-14 Source:MAXGE

Molded case circuit breaker 3 phase usually used in three-phase three-wire system for three-phase asynchronous motor when the power is delta connection is used, because the load is balanced three-phase load, so start and stop the only need to cut off the three-phase power supply is ok. 4 p molded case circuit breaker is commonly used in three phase four wire system of power supply system, because the power supply system not only has the three-phase power equipment, and single-phase electric equipment, when the power supply system malfunction, four wire can be cut off at the same time, ensure the safety of personnel and equipment, electrical personnel for repair work.

Molded case circuit breaker

1) the tn-c system cannot adopt the quadrupole molded case circuit breaker;

2) tn-c-s, tn-s system can adopt three-pole and four-electrode plastic shell circuit breakers, usually with three poles;

Molded case circuit breaker,

3) the TT system shall adopt the quadrupole molded case circuit breaker;

4) the IT system that leads to the neutral line should adopt the quadrupole molded case circuit breaker

Molded case circuit breaker

Copyright© 2017 www.maxge.com All Rights Reserved.

Copyright© 2017
www.maxge.com All Rights Reserved.

悬浮

CONTACT US

NAME

Email

Phone

MESSAGE

We won't share your info with third parties.