Dingfeng Capacitor --- How is a run capacitor different from a start capacitor?
Q: How is a run capacitor different from a start capacitor?
A: Start capacitors give a large capacitance value necessary for motor starting for a very short (seconds long) period of time. They are only intermittent duty and will fail if energized too long. Run capacitors are used for continuous voltage and current control to a motors windings and are therefore continuous duty. They are generally of a much lower capacitance value.