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Not really, unless you have a capacitor start type of motor. Capacitors can be very hazardous if improperly connected to mains power and I wouldn't suggest your trying it if you're not experienced or qualified. Best bet is just to get a heavier swicth or use a heavy duty switching relay.

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Q: Problem this fan draws 30 amps for an instant to start then settles to 10 amps Can a capacitor be used in line to take the load off the switch and provide the extra amps needed to start the fan?
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