Rheem-Ruud 43-25133-11 Run Capacitor

The Rheem-Ruud 43-25133-11 Run Capacitor is a high-performance 35/3 MFD 440V dual-section component designed for demanding HVACR applications. As an essential part of the compressor circuit and condenser fan motor setup, this 35+3 microfarad dual run capacitor provides the necessary phase shift to optimize motor torque and efficiency. Engineered for durability, this 440Vac round capacitor features a heavy-duty aluminum case and a Pressure Sensitive Interrupter (PSI) for safety, ensuring reliable operation even in high-ambient environments. This HVAC capacitor replacement is specifically compatible with Rheem, Ruud, and WeatherKing units, superseding older variants including 43-23204-05 and 43-26261-05. Its robust 440V rating makes it a superior alternative for systems originally utilizing 370V components, offering enhanced dielectric strength. Contractors can trust the 1/4-inch quick-disconnect terminals for a fast, secure fit during field service. Rely on this OEM-spec capacitor to eliminate common startup issues and maintain peak PSC motor performance across residential and light commercial equipment.

• Optimized Motor Efficiency: Delivers precise 35+3 MFD capacitance to maintain proper phase angle for both compressor and fan.
• Superior Voltage Tolerance: Rated for 440Vac to handle line voltage fluctuations more effectively than standard 370V units.
• Broad Compatibility: Direct replacement for Rheem, Ruud, and WeatherKing 43-25133-11, 43-23204-05, and 43-26261-05 part numbers.
• Safety Integrated: Includes an internal pressure-sensitive interrupter to safely disconnect the capacitor in the event of an internal fault.
• Service Ready: Standard round form factor and multi-spade terminals ensure a seamless fit in most existing mounting straps.

Can I use a 440V capacitor if my original was 370V?
Yes. In HVACR applications, you can always use a capacitor with a higher voltage rating than the original, provided the microfarad (MFD) rating remains the same. The 440V rating indicates a thicker dielectric layer, which offers increased durability against surges.

What is the difference between the 'HERM' and 'FAN' terminals?
The 'HERM' terminal is for the hermetic compressor (the 35 MFD side), while the 'FAN' terminal is for the condenser fan motor (the 3 MFD side). The 'C' terminal acts as the common connection for both.

How do I know if this capacitor needs replacement?
Common indicators include a bulged or "mushroomed" top, oil leaks around the terminals, or a compressor that hums but fails to start. Always verify the capacitance with a multimeter set to MFD/microfarads before replacing.

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.