Can three single phase circuit breakers[one on each phase of course]be used rather than a three phase breaker?
-
Looking for a smarter way to manage your heating this winter? We’ve been testing the new Aqara Radiator Thermostat W600 to see how quiet, accurate and easy it is to use around the home. Click here read our review.
Three Phase Circuit Breakers
- Thread starter stephenf8542
- Start date
Yes, of course you can. It's specifically allowed by BS7671, 431.1.1
If the circuit feeds a motor, operation of a single MCB would result in single phasing. This could lead to thermal overload and the failure of the motor.
Single phasing should not happen because all three phase motors should have single phasing protection.
If the circuit feeds a motor, operation of a single MCB would result in single phasing. This could lead to thermal overload and the failure of the motor.
Single phasing should not happen because all three phase motors should have single phasing protection.
H
holmslaw
..
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
