A motor capacitor, such as a start capacitor or run capacitor, including a dual run capacitor, is an electrical capacitor that alters the current to one or more windings of a single phase AC induction motor to create a rotating magnetic field. It is used in air conditioners, hot tub/jacuzzi spa pumps, or forced air heat furnaces for example. A round dual run capacitor (described below) is used in some air conditioner compressor units, to boost both the fan and compressor motors.
Motor capacitors include two common types, run capacitors and start capacitors. The units of capacitance are labeled in microfarads (µF or uF or mfd).
Read more about Motor Capacitor: Run Capacitors, Start Capacitors, Dual Run Capacitors, Failure Modes, Safety Issues, See Also
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