Advice on capacitors

Thread Starter

Ilikecarbon...

Joined Dec 21, 2021
2
Hi

I have an old air compressor that needs new capacitors. One start and one motor run. I’m having trouble getting new replacements with the same values. Is it possible to use a higher voltage rated capacitor? Or do they have to be exactly the same?

Cheers guys FED0D54F-F13A-42DB-908E-4294616B1FE0.jpeg3EBBDCB2-73AD-48BA-A89D-2BE916C755E3.jpeg
 

Ya’akov

Joined Jan 27, 2019
5,535
Thanks for responding. The motor run capacitor (white one) has to values for volts. DC and AC. Does that have to be similar?
Voltage on a capacitor tells you how much it can deal with. The engineers who selected that capacitor chose a particular voltage. While is is possible that sometimes it reflects excess caution or parts availability, it is not a good idea to choose a lower voltage rating than you find in the absence of other information.

Stick to those values or greater to be safe.
 
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