PWP
Hot Rolled
- Joined
- Apr 1, 2005
- Location
- Bourbon, Missouri
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Both Cap's are start. 125VAC and 413-500 mfd. 20 amps no load is seems pretty high. 22amps when both are connected together.
Bump. I'm hoping to get some answers for a very similar question. I have an American made (Wisconsin) "Doerr" brand 5hp / 29 amp rated single phase motor I'm cleaning up for an air compressor build. It has three large capacitors inside a metal box that is mounted directly on top of the motor. Two of the caps are the exact same, while one is different (but are all Dayton brand).
Unfortunately the labeling on the largest / different one is degraded to a point that I don't know what to look for to replace it.
They are;
Two black (round canister shape) Dayton brand - 1000-1200 MFD // 110/125 VAC // 1A571 // 235-8510-04 (they each have 2 poles + / -)
One silver (rectangular/or oval shaped) Dayton brand - 20 MFD // 370 VAC // 50-60Hz // 4X45QA or 4X450A or AX45QA or AX450A?? (has 2 pole sets for + / - / and gnd)
If you are certain those start capacitors are wired in series, then you can replace them with a 250-300uF 220v start capacitor.
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