Carrier P291-5054RS Run Capacitor

The Carrier P291-5054RS is a heavy-duty 50/5 microfarad 440Vac round dual run capacitor designed for high-performance environmental control systems. As a genuine OEM replacement capacitor, this unit provides the precise 50 MFD for the compressor and 5 MFD for the condenser fan motor required to maintain optimal motor torque and efficiency. Rated for 440 volts, it effectively replaces older 370V versions, offering superior dielectric strength and resistance to voltage surges in demanding residential and commercial applications.

Constructed with a round aluminum case and metallized polypropylene film, the P291-5054RS is engineered for a broad operating temperature range of -40°C to 70°C. This HVAC dual run capacitor features standard 1/4-inch quick-connect terminals for a straightforward swap-out during routine maintenance or emergency repairs. Its internal pressure-sensitive interrupter ensures a safe end-of-life failure mode, protecting the system's more expensive motor components from catastrophic electrical faults.

• Dual-Rated Precision: Delivers 50+5 MFD at +/- 5% tolerance for stable compressor and fan operation.
• High Voltage Versatility: The 440VAC rating makes it a robust upgrade for systems originally using 370V capacitors.
• OEM Compatibility: Direct replacement for Carrier, Bryant, and Payne part numbers including HC98KA051 and 1186414.
• Industrial Build: Oil-filled, non-PCB design housed in a rugged, moisture-resistant aluminum canister.

Common Questions

Can I use this 440V capacitor if my old one was rated for 370V?
Yes. While you should never undersize voltage, a 440Vac run capacitor is a standard upgrade for 370V units, providing increased durability against voltage spikes.

How do I know if my dual run capacitor has failed?
Technicians look for physical signs like a "domed" or bulging top, but a multimeter test for microfarads (MFD) is the only way to confirm if it has drifted outside the +/- 5% tolerance.

What does the "dual" rating signify in this part?
It means the P291-5054RS houses two separate capacitors in one can—one for the compressor (Hermetic) and one for the fan motor—saving space inside the control box.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.