What's the difference between 1P, 2P, 3P and 4P circuit breakers? How to choose?

What's the difference between 1P, 2P, 3P and 4P circuit breakers? How to choose?

1p for single open, only broken wire, generally used for light or electricity small electrical equipment
2p for two, two for the line end, the line of fire, zero line, more commonly used. ...

The difference between circuit breaker, contactor, relay?

The difference between circuit breaker, contactor, relay?

2.The difference between circuit breaker, contactor, relay?
Circuit breaker: is also used in main circuit on the system, can control a sing ...

The difference between the thermal magnetic type and electronic type of molded case circuit breaker?

The difference between the thermal magnetic type and electronic type of molded case circuit breaker?

The difference between the thermal magnetic type and electronic type of molded case circuit breaker?
Molded case circuit breaker is to cont ...

What's the difference of RCCB, RCBO?

What's the difference of RCCB, RCBO?

What's the difference of RCCB, RCBO?
The function of ETEK's RCCB is testing ground fault current when detected Fault current leakage curre ...