Single Run Capacitor, Round, 7.5/440 uF

Mars 12807 – Jard 7.5 µF 440V Round Run Capacitor for PSC Motor Applications

The Mars 12807 is a single-value round run capacitor rated at 7.5 microfarads (µF) and 440 VAC, engineered for continuous-duty use in permanent split capacitor (PSC) motors. Manufactured under the Jard by Mars label, this component delivers consistent capacitance stability and thermal reliability, making it a suitable replacement for OEM components in both residential and commercial HVAC systems.

Its aluminum case, metallized polypropylene dielectric, and UL 810-compliant safety features support high-cycle operation across standard HVAC applications such as blower motors, fan coils, and condensers. The unit includes quick-connect terminals for standard mounting configurations.

Product Highlights

• ✅ Capacitance: 7.5 µF ±6% tolerance
• ✅ Voltage Rating: 440 VAC, suitable for high-voltage fan motor applications
• ✅ Dielectric: Metallized polypropylene film
• ✅ Enclosure: Round aluminum shell with corrosion resistance
• ✅ Built-in Pressure Interrupter: UL-recognized safety feature for overpressure conditions

Technical Specifications

• Capacitance: 7.5 microfarads (µF)
• Rated Voltage: 440 VAC
• Frequency: 50/60 Hz
• Operating Temp Range: -40°C to +70°C (-40°F to +158°F)
• Construction: Non-PCB, hermetically sealed aluminum case
• Case Dimensions: Approx. 2.5" H × 0.75" D

Installation and Service Guidance

Installation should be completed by a qualified HVAC technician. Use appropriate lockout/tagout procedures and ensure system power is disconnected prior to service. Verify voltage and capacitance specifications against the equipment’s rated requirements. Use a multimeter to confirm functionality and polarity before energizing the system.

Contractor-Specific Notes

• ✅ General Replacement Use: Fits many OEM and aftermarket fan and blower motor assemblies
• ✅ Thermal Endurance: Rated for high-cycle performance in warm ambient environments
• ✅ Field-Ready Configuration: Four quick-connect terminals simplify installation

Recommended Applications

• ✅ PSC fan motors
• ✅ Condenser unit motors (single-value configuration)
• ✅ Blower assemblies in air handlers
• ✅ Ventilation fans in rooftop and split systems

Ensure Long-Term Reliability

The Mars 12807 Jard 7.5 µF capacitor offers a durable and precise solution for HVAC service professionals seeking dependable replacement components. Its construction and electrical stability meet the expectations of field-use environments while providing a cost-effective alternative to OEM capacitors.