12.5MFD 440V Oval Run Capacitor Hvac Replacement

Product Description

The 12.5MFD-440V is a single-section oval run capacitor rated at 12.5 microfarads (MFD) and 440 volts, designed to maintain stable motor operation in HVAC systems. Run capacitors supply continuous phase-shifted current to fan motors and compressors, keeping them running at proper torque and efficiency. This capacitor is built for continuous duty service and is intended as a direct-fit replacement for failed or degraded units. Licensed HVAC technicians perform this replacement as part of routine service calls or during system diagnostics when capacitor failure is identified by capacitance testing.

This capacitor is suited for residential and light commercial HVAC applications where a 12.5 MFD, 440-volt oval-style run capacitor is specified. Typical installations include condenser fan motor circuits and single-phase compressor circuits in split-system air conditioners and heat pumps. The oval form factor fits standard capacitor brackets found in most condensing unit electrical compartments. It is appropriate for systems requiring an OEM-equivalent capacitor replacement that meets original performance specifications for heating, cooling, and ventilation applications.

Key Features

• Rated 12.5 MFD at 440 volts for stable continuous-duty motor operation
• Oval case design fits standard condensing unit capacitor mounting brackets
• Meets or exceeds OEM performance specifications for dependable operation
• Suitable for residential and light commercial HVAC equipment
• Direct-fit replacement reduces diagnostic and installation time

Compatibility

Designed as an OEM-style replacement for HVAC systems requiring a 12.5 MFD, 440-volt oval run capacitor, including Trane residential and light commercial units.

Installation Notes

Run capacitor replacement is performed by licensed HVAC technicians. Always disconnect and lock out power at the disconnect box before opening the electrical compartment, and discharge the capacitor fully using an insulated resistor tool before handling - capacitors retain lethal voltage even after power is removed. Verify the replacement capacitor's MFD rating and voltage rating match the original before installation. Follow applicable electrical codes, including NFPA 70 (NEC), for low-voltage service work on HVAC equipment.