MARS 12792 Run Capacitor

The MARS 12792 is a professional-grade 55/5 MFD 440V round dual run capacitor designed for high-stress HVAC applications. This JARD series component is engineered to provide simultaneous support for both the compressor and the fan motor in outdoor condensing units. Operating at a dual voltage rating of 370/440 VAC, it ensures stable reactive power across various system configurations. The unit features metallized polypropylene film dielectric housed in a hermetically sealed aluminum casing, allowing for a wide operating temperature range from -40°C to 70°C. With a standard round dual run capacitor form factor and 1/4-inch quick-connect terminals, it serves as a direct-fit HVAC replacement part for many OEM systems. This MARS capacitor meets rigorous industry safety standards including UL and CUL, utilizing a physical interrupter and non-PCB oil to ensure reliable protection against internal electrical failure in the field.

• Dual Section Design: Consolidates capacitance for both the fan (5 MFD) and compressor (55 MFD) into a single, space-saving round profile.
• Universal Voltage Compatibility: Rated for up to 440VAC, making it a suitable replacement for both 370V and 440V rated components.
• High Thermal Stability: Engineered to withstand extreme rooftop and outdoor temperatures without capacitance drift or casing failure.
• Industrial Build Quality: Features a moisture-resistant aluminum enclosure and heavy-duty terminals to handle high-vibration compressor starts.

• Can I use this to replace a 370V capacitor? Yes, this 440V rated unit is safe to use as a replacement for 370V capacitors, as long as the capacitance (MFD) ratings match.
• What does the dual 55/5 rating mean? It means the capacitor serves two functions: the 55 MFD side supports the compressor, while the 5 MFD side supports the condenser fan motor.
• Which orientation should I install this in? The MARS 12792 can be mounted in any position within the standard round capacitor bracket or clamp.

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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.