US Seal Run Capacitor 5VR0303 – 30 MFD, 370VAC | PRC30M
Restore Reliable Performance to Your Pool Pump
When your pool or spa motor isn’t running as smoothly as it should, a failing capacitor is often the culprit. The US Seal Run Capacitor 5VR0303 – 30 MFD, 370VAC (PRC30M) provides the steady electrical support your pump needs to keep operating efficiently. Built to OEM-grade standards, this capacitor is engineered to withstand heat, moisture, and the demanding conditions of pool environments.
Whether you’re a pool owner handling your own equipment maintenance or a service technician looking for dependable replacement parts, the US Seal 5VR0303 is designed for performance, durability, and peace of mind.
Why a Run Capacitor Matters
Unlike a start capacitor, which delivers an initial jolt of energy to kick the motor on, a run capacitor works continuously. It regulates the electrical current while the motor is running, ensuring smooth and efficient operation.
When your run capacitor begins to fail, you may notice:
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Weak or inconsistent pump performance
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Motors that overheat or shut down
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Increased energy consumption
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Buzzing noises from the motor housing
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Shortened motor lifespan
Replacing your capacitor before it fails completely is a simple, affordable way to prevent pump breakdowns and protect your investment.
Key Features & Benefits
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Electrical Rating: 30 MFD, 370VAC
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OEM-Compatible: Fits many pool and spa motors
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Durable Design: Built with moisture-sealed housing for outdoor use
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Corrosion-Resistant: Protected against harsh pool environments
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Long-Lasting Reliability: Helps extend the life of your pump motor
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Cost-Saving Solution: Prevents costly motor replacements
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Compact Size: Easy to install in standard pump housings
Compatible Applications
The US Seal 5VR0303 capacitor is commonly used in:
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Pool Pumps – For strong, consistent water circulation
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Spa Motors – Ensures smooth jet and blower operation
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Booster Pumps & Blowers – Keeps auxiliary systems running efficiently
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Works with many leading motor brands, including Century, AO Smith, Emerson, Franklin Electric, and more
⚠️ Always verify your motor’s capacitor label. The MFD rating must match exactly. The voltage rating can be equal or higher but never lower.
Installation Guide
Replacing a run capacitor is one of the most straightforward pump repairs:
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Turn Off Power – Shut off the breaker to your pump system.
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Access the Motor Housing – Remove the back cover to locate the capacitor.
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Discharge the Old Capacitor – Use an insulated tool to discharge stored electricity.
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Disconnect the Wires – Note wire positions before removal.
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Install the New Capacitor – Securely connect wires to the 5VR0303.
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Reassemble & Test – Close the housing, restore power, and test pump function.
⚠️ If you’re not confident in electrical work, hire a licensed pool professional for installation.
Long-Term Value
At just $36.95, the US Seal 5VR0303 is a small investment that delivers big returns:
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Protects your pump motor from early burnout
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Maintains efficient water circulation
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Reduces power consumption
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Extends motor lifespan
Compared to the cost of replacing a pool pump (often $400–$900), this capacitor is a cost-effective preventative fix.
Product Specifications
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Manufacturer: US Seal
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Model: 5VR0303 (PRC30M)
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Type: Motor Run Capacitor
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Rating: 30 MFD, 370VAC
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Housing: Cylindrical, sealed, moisture-resistant
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Applications: Pool pumps, spa motors, blowers
Why Choose Benchmark Pool Supply?
We don’t just sell pool parts—we specialize in them. At Benchmark Pool Supply, you get:
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Genuine US Seal capacitors and other trusted OEM replacements
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Competitive pricing backed by industry expertise
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Fast shipping to get your pool back in action quickly
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Knowledgeable support if you need help with compatibility
We’re committed to helping pool and spa owners avoid downtime and enjoy clean, safe water all season.
FAQs About the US Seal 5VR0303 Run Capacitor
Q: Can I replace a 370VAC capacitor with a 440VAC version?
A: Yes, you can use a higher voltage capacitor (440VAC) as long as the MFD rating is exactly the same.
Q: How do I know if my capacitor has failed?
A: Look for signs such as buzzing, weak motor performance, overheating, or a swollen/leaking capacitor casing.
Q: How long do run capacitors usually last?
A: Typically 5–7 years, though lifespan depends on usage and environmental conditions.
Q: Is this capacitor compatible with saltwater pools?
A: Yes, the moisture-sealed design makes it durable in both freshwater and saltwater pool systems.
Q: Can I install this myself?
A: If you’re experienced with pool equipment and electrical safety, yes. Otherwise, hiring a professional is recommended.
