Carrier P291-4054RS Dual Run Capacitor

The Carrier P291-4054RS is a heavy-duty, field-proven 40/5 MFD 440V round dual run capacitor engineered for demanding HVACR applications. Designed as a specific OEM replacement part for Carrier, Bryant, and Payne equipment, this component provides the high-torque electrical storage necessary to start and run both the compressor and fan motors within a single, space-saving housing. With a dual rating of 40 microfarads for the compressor circuit and 5 microfarads for the fan motor, this unit handles up to 440 VAC, making it an ideal upgrade or direct replacement for older 370V or 440V capacitors. Built to exacting HVAC motor run capacitor standards, it features a non-PCB dielectric fluid and a safety-focused pressure-sensitive interrupter to protect the system during extreme thermal conditions. This 40/5 dual capacitor is rated for 60,000 service hours, ensuring long-term cycle life and mechanical reliability in residential and light commercial condenser units.

• Optimized Compatibility: Direct drop-in replacement for part numbers HC98KA041, HC98JA041, and P291-4053RS, ensuring minimal downtime during field service.
• Dual-Action Performance: Simultaneously regulates the start and run cycles for both the compressor and condenser fan, maintaining consistent motor efficiency.
• Thermal Stability: Rated for operation from -40°C to 70°C, offering reliable performance in harsh outdoor environments.
• Safety Engineering: Features a patented internal pressure-sensitive interrupter and is UL recognized for maximum arc protection.
• Hertz Range: Fully operational on both 50Hz and 60Hz frequencies, meeting broad electrical specification requirements.

Can I use the P291-4054RS to replace a 370V capacitor?
Yes, you can always go up in voltage. Since this is a 440V rated component, it will safely replace a 370V unit of the same 40/5 MFD capacitance, often providing improved service life due to the higher dielectric strength.

What are the physical dimensions for installation?
This round dual capacitor typically measures approximately 5 inches in height with a 1.9 to 2.1-inch diameter, making it compatible with most standard residential condenser mounting straps.

How do I identify a failing 40/5 MFD capacitor?
Common indicators include a "bulged" or swollen top at the terminals, a humming compressor that fails to start, or a fan motor that requires a manual push to begin rotating.

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.