U.S. Seal Run Capacitor, 30 MFD, 370vac In stock$3099
Quick overview
- Thirty microfarads Rated at 30 MFD, the value that must match what your motor calls for.
- Three seventy volt rating 370 VAC rated, the standard run capacitor voltage class for these motors.
- Compact case Measures 1-3/4 in by 2-7/8 in, so it fits the capacitor cans these motors use.
- Run, not start This is the run capacitor, which stays in circuit the whole time the motor is turning.
- A classic no start symptom A failed run capacitor gives you a motor that hums and will not spin up, or one that runs hot and trips.
- Discharge before you touch it Capacitors hold a charge after the power is off, so treat the terminals as live until the old one is safely discharged.
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Product details
This is a U.S. Seal run capacitor rated at 30 MFD and 370 VAC, in a case measuring 1-3/4 in by 2-7/8 in. It is a replacement run capacitor for pool pump motors.
What a run capacitor does
A single phase motor cannot start turning on its own. The capacitor creates the phase shift that gets it moving, and a run capacitor stays in the circuit the whole time the motor is spinning, holding that shift and keeping the motor running efficiently. It is one of the most common failures on a pool pump, and one of the cheapest to fix.
Matching the part
Two numbers decide whether a capacitor is correct: the capacitance in microfarads and the voltage rating. The MFD value has to match what the motor was built for, since a different value changes how the motor behaves under load. The voltage rating can be equal to or higher than the original but never lower. Check the case dimensions too, because the capacitor has to sit in the can on top of the motor.
Safety first
A capacitor stores energy and can hold a charge long after the power is switched off. Turn off the breaker, then discharge the old capacitor safely before you disconnect it. If you are not comfortable doing that, this is a repair worth handing to a service technician.
| Brand | U.S. Seal |
|---|---|
| Manufacturer part number | 5VR0303 |
| Also listed as | 12717, 628318-308 |
| UPC | 601515603030 |
| Also listed UPC | 685744127178 |
| Type | Run capacitor |
| Capacitance | 30 MFD |
| Voltage | 370 vac |
| Dimensions | 1-3/4" x 2-7/8" |
| Application | Pool pump motor |
| Shipping weight | 0.4 lb |
| Ships | Parcel |
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