Common tripping breaker fix.

by Kevin

Electrical tidbit here. Not sure where to post this and I didn't see it listed. If your breaker trips shortly after the motor kicks in you might want to try replacing your standard breaker with a 'high magnetic' breaker. They have a delayed trip to allow for the high current draw when an electric motor starts. Changed my standard 20A breaker to a high magnetic breaker and my tripping problems went away. They are not sold in home centers or hardware stores. Got mine from Grainger.

Hope this helps.

Most important, what Bill said "Make sure the power supply is off!"

Comments for Common tripping breaker fix.

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Apr 21, 2016
by: Doug in

Ah. That amounts to a real 1.5 HP motor. Start-up figures at 3.4 HP, then probably settles down...

Apr 20, 2016
Tripping Breaker Fix
by: Kevin

I'm running a 1973 Montgomery Wards compressor. The motor nameplate states 1.5 hp and 22A at 115 VAC.

I've never measured the actual current draw, but changing to a 20A high magnetic breaker solved my problem.

I've had the high magnetic breaker for about 5 years and I love it.

Apr 10, 2016
by: Doug in

What kinda load you got there, Kevin?

Apr 10, 2016
Thanks for the tripping breaker tip
by: Bill

Thanks Kevin. This will help folks, I'm sure.

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