Rectorseal M12043 Run Capacitor 35 Mfd 440V Oval

Product Description

The RECTORSEAL M12043 is a 35 microfarad (MFD), 440-volt oval run capacitor designed to support single-phase motor operation in HVAC equipment. Run capacitors maintain a continuous phase shift in the start winding during normal operation, keeping compressor and fan motors running efficiently under load. This unit is rated at 440 volts, making it suitable for both 240-volt and 277-volt motor circuits. The oval case profile is a standard form factor found in residential and light commercial condensing units and air handlers. Licensed HVAC technicians typically handle replacement during a compressor or condenser fan motor service call.

This capacitor is used in single-phase HVAC systems where a run capacitor is required for compressor motors, condenser fan motors, or blower motors. The 35 MFD rating and 440-volt designation are among the most common values in residential split-system air conditioners and heat pumps. The oval housing fits most standard capacitor brackets found in condensing unit cabinets. It is well suited to residential cooling systems, packaged units, and light commercial rooftop equipment that require an oval-style run capacitor in this rating range.

Key Features

• 35 MFD capacitance rating for single-phase motor run support
• 440-volt rating compatible with 240-volt and 277-volt motor circuits
• Oval case profile fits standard capacitor mounting brackets
• Suitable for compressor, condenser fan, and blower motor applications
• Compact dimensions for installation in condensing unit and air handler cabinets

Compatibility

Designed as an OEM-style replacement oval run capacitor for single-phase residential and light commercial HVAC systems requiring a 35 MFD, 440-volt oval capacitor.

Installation Notes

Run capacitor replacement is performed by licensed HVAC technicians. Always disconnect and lock out power to the unit before servicing. Capacitors store a charge even after power is removed — discharge the capacitor safely using an appropriate resistor tool before handling terminals. Verify the MFD rating and voltage rating of the replacement match or exceed the original equipment specification before installation.

Technical Specifications

• Capacitance: 35 MFD
• Voltage Rating: 440 volts
• Case Style: Oval
• Width: 1.806 inches
• Length: 2.806 inches
• Height: 4.25 inches
• UPC: 685744120438

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: M12043