MARS 12726 Run Capacitor

The MARS 12726 is a professional-grade 55 MFD 370V round run capacitor engineered for continuous duty in single-phase motor applications. As a veteran-preferred component for HVAC motor repair, this unit stabilizes current to maintain an ideal phase shift, ensuring high-efficiency performance for compressors and blower motors. Built with a non-PCB, oil-filled design, the MARS 12726 run capacitor features a physical interrupter for safety and hermetically sealed construction to protect against the oil, dirt, and moisture common in demanding condenser environments.

For contractors, the MARS 12726 serves as a high-reliability 55 microfarad capacitor replacement for various OEM part numbers, including those from GE, Genteq, and Jard. Replacing a failed AC capacitor with this 370VAC rated component restores the necessary running torque, preventing the motor overheating and high energy consumption associated with degraded dielectric film. Always verify that your system requires a round run capacitor with a +/- 6% tolerance before installation to ensure optimal SEER performance.

• Universal Compatibility: Serves as a direct replacement for standard 55 uF 370V round capacitors in residential and light commercial HVAC units.
• Technical Durability: Engineered with metallized polypropylene film and a 70°C operating temperature rating to handle high-stress cooling cycles.
• Standardized Terminals: Equipped with 1/4 inch male quick-connect terminals for fast, secure wiring during field service.
• Safety Compliance: Meets UL 810 standards with a pressure-sensitive interrupter for hardware protection.

• Can I use this 370V capacitor if my original was 440V? No. While you can upgrade from 370V to 440V, you should never replace a 440V capacitor with a 370V unit like the 12726, as it will lead to premature failure.
• How do I know if my 55 MFD capacitor has failed? Look for physical bulging at the top of the canister or use a multimeter to check if the capacitance has dropped more than 10% below the 55 microfarad rating.
• Is this 12726 model for the compressor or the fan? This is a single-value run capacitor. Depending on the system, it may support either the compressor or a specific motor, provided the microfarad demand is 55 MFD.

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.