Re: Compressor issues and breakers

Posted by MarkB_MI on September 28, 2014 at 18:19:57 from (70.194.11.5):

In Reply to: Compressor issues and breakers posted by David G on September 28, 2014 at 07:45:30:

Most compressor "HP" rating are total fiction. The motor nameplate "amps" ratings are usually fairly accurate.

If you have trouble tripping the recommended circuit breaker, you should check for voltage drop. If the voltage at the compressor is much less than 120 volts under load, you need to beef up your wiring and/or look for bad connections.

The thing to understand is a motor will draw however much current it needs to handle its load. If the voltage drops, it needs to draw more current to make up for it.

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