Run Start Capacitor, Round, 55/5 MFD, 440/370

Mars 12792 – Jard Dual Run Capacitor, 55/5 MFD, 440V, Round Aluminum Case The Mars 12792 is a dual motor run capacitor from the Jard product line, designed to support continuous operation of both compressor and fan motors in residential and light commercial HVAC systems. With a capacitance rating of 55/5 microfarads and a voltage rating of 370/440 VAC, it provides stable and efficient performance in demanding applications. Constructed with metallized polypropylene film in an oil-filled round aluminum case, this component offers high thermal stability and resistance to voltage fluctuations. It is manufactured to meet the requirements of PSC motor circuits and includes ¼-inch male quick-connect terminals for standard installation. Specifications Model Number: 12792 Capacitance: 55/5 µF ±5% tolerance Voltage Rating: 370/440 VAC Frequency: 50/60 Hz Operating Temperature Range: -40°C to +70°C Shape: Round Terminal Type: ¼" quick-connect Enclosure Material: Aluminum Design: Dual section, non-PCB Application Suitable for air conditioning condensers, heat pump systems, and other HVAC units utilizing a permanent split capacitor (PSC) motor design Designed to simultaneously power compressor and condenser fan motors Used in OEM replacements and service applications where a dual-rated capacitor is required Installation Notes This component should be installed by a licensed HVAC technician Confirm capacitance and voltage ratings against the system’s original equipment Disconnect all electrical power before servicing Ensure correct lead identification for "C," "FAN," and "HERM" terminals Secure the capacitor using approved brackets to avoid vibration damage Key Advantages for Contractors Dual-rating design eliminates the need for separate capacitors in compressor/fan motor systems 440V maximum operating voltage allows use in systems with higher voltage variability Aluminum case improves heat dissipation and enhances service life Pressure-sensitive interrupter enhances safety by preventing rupture under fault conditions