Posted by David G on September 28, 2014 at 07:45:30 from (63.152.90.231):
There was a posting about a compressor with a 1.8HP motor tripping breakers.
According to my calculations, that would draw 20 amps, but the owner stated the manual said use a 20 amp breaker. It would not be the first time a manufacturer pushed the limit past the reasonable.
I learned that a circuit should never be run at more than 80% continuous. That means a 1.5HP motor would draw 16 amps, and would fill up a 20A breaker.
These numbers would also need derated if using to small or long of cord.
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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