Single Run Capacitor, Oval, 7.5/440 uF

Mars 12931 – Jard 7.5 MFD 440V Oval Motor Run Capacitor The Mars 12931 capacitor, part of the Jard series, is a 7.5 microfarad (µF) oval-shaped motor run capacitor designed for use in permanent split capacitor (PSC) motors. Rated for 440 VAC operation at 50/60 Hz, it supports continuous-duty motor applications in HVAC systems such as condenser fan motors and blowers. Constructed with a metallized polypropylene dielectric, this run capacitor includes a built-in pressure-sensitive interrupter and is housed in a non-PCB aluminum case for environmental compliance and safety. The compact oval profile allows for easier placement in constrained enclosures. Technical Specifications Manufacturer: Mars Series: Jard Model Number: 12931 Capacitance: 7.5 µF Voltage Rating: 440 VAC Frequency: 50/60 Hz Configuration: Oval Terminal Type: ¼" male quick-connect (standard dual tab) Temperature Range: -40°C to +70°C Dielectric Material: Metallized polypropylene film Case Material: Aluminum Interrupter: Pressure-sensitive Mounting: Standard clip or strap-compatible design Case Dimensions: Approx. 2.5" (H) x 2.056" (W) Application This capacitor is used in HVAC applications requiring 7.5 µF capacitance for motor operation, specifically in systems with 440V components. It serves as a direct-fit replacement in many OEM and aftermarket setups and is suited for residential and light commercial equipment. Typical applications include: Condenser fan motors Air handler blower motors Other PSC motors rated for 7.5 µF / 440V Installation Considerations Installation of the Mars 12931 should be performed by trained HVAC personnel. Before replacement, verify voltage and capacitance ratings to match equipment specifications. Always disconnect power and properly discharge the old capacitor before removal. Use appropriate mounting brackets or clips to secure the capacitor in place and check that all terminal connections are tight and aligned with manufacturer wiring diagrams. Performance and Reliability Engineered for continuous duty in demanding HVAC environments Built-in safety interrupter provides fault protection Meets UL and RoHS compliance requirements Suitable for both OEM replacement and aftermarket service