Rectorseal M12050 Oval Run Capacitor 55 Mfd 440V

Product Description

The RECTORSEAL M12050 is a 55 microfarad (MFD), 440-volt oval run capacitor used in single-phase motors found in HVAC condensing units, air handlers, and heat pump systems. Run capacitors maintain a continuous phase-shifted current to the start or run winding of the motor, keeping it operating efficiently under load. This unit is rated at 55 MFD and 440 volts, making it suitable for compressor, condenser fan motor, or blower motor applications where those electrical values match. Installation is performed by licensed HVAC technicians as part of routine maintenance or component replacement service.

Oval run capacitors are the standard format used in residential and light commercial HVAC equipment. The M12050 fits into the same footprint as common oval capacitors in outdoor condensing units and indoor air handler cabinets. Its dimensions of 1.806 inches wide by 2.806 inches long by 5.25 inches tall allow it to fit within the capacitor bracket of most standard equipment accepting an oval 55 MFD 440-volt unit. This capacitor is used when a motor runs slowly, hums without starting, draws excess current, or fails to run altogether due to a failed capacitor.

Key Features

• 55 MFD capacitance rating for single-phase motor run applications
• 440-volt rating provides compatibility across both 208-240 volt motor circuits
• Oval form factor fits standard HVAC capacitor mounting brackets
• Compact dimensions: 1.806 x 2.806 x 5.25 inches
• Suitable for compressor, condenser fan motor, or blower motor use

Compatibility

Designed as an OEM-style replacement oval run capacitor for single-phase HVAC motors rated at 55 MFD and 440 volts in residential and light commercial systems.

Installation Notes

Run capacitor replacement is performed by a qualified HVAC technician. Always disconnect and lock out power to the unit before opening the capacitor compartment, and discharge the existing capacitor before handling or removal, as capacitors can retain a dangerous charge after power is removed. Verify the MFD rating and voltage rating on the original capacitor before installing the replacement. Follow NEC guidelines and local codes for low-voltage and line-voltage wiring practices during reinstallation.

Technical Specifications

• Capacitance: 55 MFD
• Voltage Rating: 440 volts
• Shape: Oval
• Width: 1.806 inches
• Length: 2.806 inches
• Height: 5.25 inches
• UPC: 685744120506

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: M12050