Rectorseal M12190 Dual Run Capacitor 45/5 Mfd 440V

Product Description

The RECTORSEAL M12190 is a dual run capacitor rated at 45/5 microfarads (MFD) and 440 volts, designed for use in residential and light commercial HVAC systems. This oval-style capacitor provides the continuous capacitance needed to start and run both the compressor and condenser fan motor in a single unit. Dual run capacitors reduce component count and simplify wiring by combining two capacitors into one housing. Licensed HVAC technicians install this part during routine seasonal maintenance, capacitor failure diagnosis, or full system changeouts.

This capacitor is suited for split-system air conditioners and heat pumps where a single oval dual run capacitor serves both the compressor and the outdoor fan motor. The 440V rating makes it appropriate for standard single-phase residential condensing units. Its compact oval form factor fits standard capacitor brackets and disconnect enclosures commonly found in outdoor condenser cabinets.

Key Features

• Dual run design supports compressor and condenser fan motor from a single capacitor
• 45/5 MFD rating covers common compressor and fan motor capacitance requirements
• 440V voltage rating suitable for standard single-phase residential HVAC applications
• Oval housing fits standard condenser cabinet mounting brackets
• Compact dimensions allow installation in space-limited electrical compartments

Compatibility

Designed as an OEM-style replacement dual run capacitor for single-phase residential and light commercial air conditioning and heat pump condensing units requiring a 45/5 MFD 440V oval capacitor.

Installation Notes

Dual run capacitors are installed by licensed HVAC technicians. Always disconnect and lock out power to the condensing unit before servicing capacitors, and discharge the capacitor fully before handling, as stored voltage can be lethal even after power is removed. Follow NEC guidelines for electrical component replacement in HVAC equipment. Verify the MFD and voltage ratings match the nameplate requirements of both the compressor and fan motor before installation.

Technical Specifications

• Capacitance: 45/5 MFD
• Voltage Rating: 440 volts
• Shape: Oval
• Width: 1.88 inches
• Length: 3.56 inches
• Height: 5.25 inches
• Depth: 1.88 inches
• UPC: 685744121909

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: M12190