Rectorseal M12117 Dual Run Capacitor 80/10 Mfd 440V

Product Description

The RECTORSEAL M12117 is a dual run capacitor rated at 80/10 microfarads (MFD) and 440 volts, designed for use in residential and light commercial HVAC systems. Dual run capacitors serve two motor circuits simultaneously — typically the compressor and the condenser fan motor — from a single round housing. This capacitor supplies the continuous electrical boost both motors need to run efficiently and maintain proper torque. Licensed HVAC technicians install this component as a direct replacement during routine service or when diagnosing motor start and run failures.

This capacitor is suited for split-system air conditioners and heat pumps where a single round dual run capacitor powers both the compressor and condenser fan motor. The round form factor and 440-volt rating make it a widely applicable replacement in residential condensing units. It fits standard capacitor mounting brackets and terminals found in many common outdoor unit configurations. Technicians will find this unit appropriate for service calls where the existing capacitor shows signs of bulging, low MFD reading, or failure under load.

Key Features

• Dual run capacitor — powers compressor and condenser fan motor from one unit
• 80/10 MFD rating supports a wide range of compressor and fan motor pairings
• 440-volt rating provides compatibility across standard residential condensing unit voltage requirements
• Round housing fits standard outdoor unit capacitor brackets and mounting hardware
• Direct OEM-style replacement for failed or degraded dual run capacitors

Compatibility

Designed as an OEM-style replacement dual run capacitor for residential and light commercial split-system air conditioners and heat pumps requiring an 80/10 MFD, 440-volt round capacitor.

Installation Notes

Capacitor replacement is performed by licensed HVAC technicians. Always disconnect and lock out power to the condensing unit at the disconnect box before handling capacitors — stored charge can remain in a capacitor even after power is cut, so discharge the capacitor safely using an insulated resistor tool before removing leads. Follow NEC guidelines for working on high-voltage HVAC equipment. Verify the replacement MFD and voltage rating match the equipment nameplate specifications before installation.

Technical Specifications

• Capacitance Rating: 80/10 MFD
• Voltage Rating: 440 volts
• Housing Shape: Round
• Width: 2.5 inches
• Length: 2.5 inches
• Height: 5.25 inches
• Depth: 2.5 inches

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: M12117