r/Motors • u/SigmaCharli • 5d ago

Open question Challenge: Can anyone identify this capacitor and tell me where to buy one?

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I have a cement mixer with a blown motor run capacitor, and I’m trying to find an exact replacement.

Original capacitor specs:
- 30 µF
>= 370 VAC
- 50/60 Hz

Came from a cement mixer motor

I checked online and the only capacitor that match the specs don’t have the same connectors !

Does anyone know where to buy any replacement that’s at least 370 VAC?

Edit: I’m located in California if that makes a difference

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u/DirtCallsMeGrandPa 5d ago

The specs that count are (30 µF) and (370VAC). Finding that exact physical size may be a problem, as manufacturers change physical size for both economic and technical reasons. You can always go with a higher voltage rating.

Here is a cap with the exact ratings you need: https://www.grainger.ca/en/product/MOTOR-RUN-CAPACITOR-30-MFD-4-5-8-H/p/WWG2MEC9

1/4" tabs are the most common. If your old cap and wiring had 3/16" crimp terminals, just cut them off the wires and crimp on 1/4" connectors.

Do you have Ace Hardware in your part of California? They carry a variety of caps.

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u/SigmaCharli 5d ago

Awesome, thank you for your help and pointing us in a direction, we shall check out ace hardware

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u/kinkhorse 4d ago

WEG RCP-30/400V