Rectorseal M12287 Dual Run Capacitor 40/7.5 Mfd 440V

Product Description

The RECTORSEAL M12287 is a dual run capacitor rated at 40/7.5 microfarads (MFD) and 440 volts, designed to support both the compressor and the fan motor in a single round housing. Dual run capacitors store and release electrical energy to start and maintain motor operation in split-system air conditioners and heat pumps. The round form factor and 440-volt rating make this a widely applicable replacement for failed or degraded capacitors in residential and light commercial cooling equipment. Licensed HVAC technicians typically handle capacitor replacement as part of a no-cool service call or preventive maintenance visit.

This capacitor is suited for split-system condensing units where a single component serves both the compressor and the outdoor fan motor. The 40 MFD winding supports the compressor, while the 7.5 MFD winding supports the condenser fan motor. Its round housing fits standard capacitor brackets found in most outdoor condensing units. It is appropriate for residential and light commercial applications where a 440-volt dual run capacitor is specified.

Key Features

• Dual run design powers both compressor and condenser fan motor from one capacitor
• Rated 40/7.5 MFD for split-system compressor and fan motor applications
• 440-volt rating provides a safety margin above standard 370-volt systems
• Round housing fits common OEM capacitor mounting brackets
• Compact footprint: 2.5 inches diameter, 4.375 inches tall

Compatibility

Designed as an OEM-style replacement dual run capacitor for residential and light commercial split-system air conditioners and heat pumps requiring a 40/7.5 MFD, 440-volt round capacitor.

Installation Notes

Capacitor replacement must be performed by a licensed HVAC technician. Always disconnect and lock out power to the condensing unit before handling capacitors, and discharge the capacitor fully using an approved discharge tool before removing any terminals, as capacitors can retain a dangerous charge even after power is removed. Confirm the MFD ratings and voltage rating on the original capacitor before installing a replacement. Follow all applicable local electrical codes and the equipment manufacturer's service instructions.

Technical Specifications

• Capacitance: 40/7.5 MFD
• Voltage Rating: 440 volts
• Configuration: Dual run, round
• Width: 2.5 inches
• Length: 2.5 inches
• Height: 4.375 inches
• Depth: 2.5 inches
• UPC: 685744122876

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: M12287