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Century Motor Capacitors

Century Motor Capacitors

Square One is where to buy Century motor capacitors online.

Availability: Out of stock

Product Name Price
POC15 Century Capacitor 15MFD 370V Oval

$5.00

POC20 Century Capacitor 20MFD 370V Oval

$10.00

POC25 Century Capacitor 25MFD 370V Oval

$5.00

POCF5 Century Capacitor 5MFD 440V Oval

$10.00

POC75 Century Capacitor 7.5MFD 370V Oval

$5.00

POCF10 Century Capacitor 10MFD 440V Oval

$4.00

POC2 Century Capacitor 2MFD 370V Oval

$3.00

PMJ124 Century Capacitor 124-149MFD 110-125V Round

$10.00

PMJ378 Century Capacitor 378-455MFD 110-125V Round

$17.00

PMJ340 Century Capacitor 340-408MFD 110-125V Round

$17.00

PMJ324 Century Capacitor 324-388MFD 110-125V Round

$15.00

PMJ270 Century Capacitor 270-324MFD 110-125V Round

$14.00

PMJ243 Century Capacitor 243-292MFD 110-125V Round

$14.00

PMJ216 Century Capacitor 216-259MFD 110-125V Round

$12.00

PMJ189 Century Capacitor 189-227MFD 110-125V Round

$11.00

PMJ130 Century Capacitor 130-156MFD 110-125V Round

$11.00

PMJ400 Century Capacitor 400-480MFD 110-125V Round

$17.00

PMJ460 Century Capacitor 460-552MFD 110-125V Round

$19.00

PMJ590 Century Capacitor 590-708MFD 110-125V Round

$23.00

PMJ540 Century Capacitor 540-648MFD 110-125V Round

$23.00

Details

Shop our selection of Century motor start and run capacitors. Please contact us if you need assistance - we don't have every part online yet.

When troubleshooting your single phase motor, the capacitor is the fastest, cheapest, and easiest part to diagnose before tearing into your motor or condeming it. Here are some quick tips:

  • If the motor was running and then fails to start, the capacitor may have failed. First discharge capacitor. To check capacitor, set volt-ohm meter to RX100 scale and touch its probes to capacitor terminals. If capacitor is OK, needle will jump to zero ohms, and drift back to high. Steady zero ohms indicates a short circuit; steady high ohms indicates an open circuit.
  • If the motor takes too long to accelerate, the capacitor may may be defective. 
  • If start capacitors continue to fail, the motor may not be sized properly or you may be running it too much in an hour. Verify duty cycle. Capacitor manufacturers recommend no more than 20, three-second starts per hour. Install capacitor with higher voltage rating, or add bleed resistor to the capacitor.
  • If the run caoacitor fails, it may be that the ambient temerature is too high or there was a power surge.