Single Run Capacitor, Oval, 7.5/440 uF

Professional-Grade Reliability – Jard by Mars 7.5 MFD 440V Oval Run Capacitor

The Mars 12931 – Jard 7.5 MFD Oval Run Capacitor is engineered to meet the operational demands of high-performance HVAC systems. Designed for continuous duty, this run capacitor delivers consistent electrical support for fan motors and other single-phase applications, ensuring stable and efficient operation across a wide range of systems.

This model combines a compact oval form factor with robust materials to meet rigorous field requirements. Its aluminum case and hermetically sealed construction help protect internal components from environmental stress, providing extended service life and resistance to moisture and contamination.

Product Highlights

• ✅ Capacitance Rating: 7.5 µF (microfarads) ±6%
• ✅ Rated Voltage: 440 VAC
• ✅ Frequency: 50/60 Hz operation for international and domestic systems
• ✅ Operating Temperature Range: -40°C to +70°C
• ✅ Shape: Oval
• ✅ Case Material: Drawn aluminum for improved heat dissipation and corrosion resistance
• ✅ Dielectric Fluid: Oil-filled; non-PCB for environmental compliance

Installation & Use

Designed for permanent split capacitor (PSC) motors, the 12931 is suitable for blower and fan assemblies in HVAC units requiring a single capacitance. The oval case allows for installation in compact or confined cabinet spaces where round capacitors may not fit. Clearly marked terminals and standard blade connectors simplify wiring during service or replacement procedures.

Note: As with all high-voltage components, proper installation by a licensed technician is recommended to ensure safety, code compliance, and system reliability.

Contractor-Approved Features

• ✅ Hermetic Seal: Provides protection against moisture ingress and oxidation
• ✅ Interrupter Mechanism: Built-in pressure-sensitive interrupter for fail-safe operation
• ✅ UL Recognized: Manufactured to meet UL 810 performance standards
• ✅ Lead-Free Soldering: Compliant with RoHS directives for safety and sustainability

Applications

This capacitor is commonly specified for motor run applications in residential and light commercial HVAC systems. It is ideal for replacing OEM oval-style capacitors in air handlers, furnace blowers, and ventilators operating on 440V circuits.