R rustyhouser New member Location Nebraska Apr 23, 2003 #1 Why does NEC require motors have overload protection in the control circuit, when heaters are located in the power circuit.??
Why does NEC require motors have overload protection in the control circuit, when heaters are located in the power circuit.??
tom baker First Chief Moderator & NEC Expert Staff member Location Bremerton, Washington Occupation Master Electrician Apr 23, 2003 #2 Re: overload protection in control circuits The control circuit is what controls the contactor. It senses the overload and opens the contactor. The control circuit is a low amperage circuit controlling a much higher amperage circuit.
Re: overload protection in control circuits The control circuit is what controls the contactor. It senses the overload and opens the contactor. The control circuit is a low amperage circuit controlling a much higher amperage circuit.