Motor Overload Protection

[buzzlightyear2014]

Hi

Just after a bit of help working out required overload protection on contactor for this motor ( attached picture sent via plumber )

Thanks

 

[Andy™]

i would guess 4.2A, or 0.55kW...

 

[Lurch]

i would guess 4.2A, or 0.55kW...

Don't think you will find any arguments with that.

 

[apprentice87]

I agree!! Oh, and the overload protection for the motor is not an option there is a reg that covers it.. All motors greater than 370w i think it is from memory..

john..

 

[roys]

I agree!! Oh, and the overload protection for the motor is not an option there is a reg that covers it.. All motors greater than 370w i think it is from memory..

john..

370W it is indeed John, well remembered, reg 552-01-02.

This used to confuse me because I would always say what about my 1000W Dyson vacuum cleaner don't see any contactor and overload on that, but I think that reg goes onto to talk about "if the motor is part of a piece of equipment that is covered as a whole by another British Standard" or words to that effect, it has been a while.

 

[roys]

Edit to above reg number that was from the 16th style format doh, so it will be 552.1.2 now.

 

[Evans Electric]

4.2 A   is looking promising .       

The other thing with motor starters is the no-volt release  to prevent re-starting after a power outage or an  EM  stop being reset.

 

[apprentice87]

Indeed, being "rotating machinery" or whatever.

john..