Rectorseal M12214 Round Run Capacitor 20 Mfd 370V

Product Description

The RECTORSEAL M12214 is a round run capacitor rated at 20 microfarads (MFD) and 370 volts, designed for single-phase motor applications in HVAC systems. Run capacitors store and release electrical energy to maintain a consistent phase shift in the motor winding, improving efficiency and torque during continuous operation. This capacitor is a direct-replacement component typically installed by licensed HVAC technicians during routine maintenance or compressor and blower motor service calls. Its compact round form factor fits standard capacitor mounting brackets found in most residential and light commercial air conditioning and heat pump equipment.

This capacitor is suited for use with single-phase PSC (permanent split capacitor) motors, including condenser fan motors and compressor motors operating on 370-volt circuits. At 1.75 inches in diameter and 3.125 inches in height, it fits within the standard footprint of most outdoor condensing unit control compartments. It is a common replacement component during seasonal startups, motor replacements, and system tune-ups where capacitance has degraded below acceptable tolerances.

Key Features

• 20 MFD capacitance rating for single-phase PSC motor support
• 370-volt rating suitable for standard residential and light commercial HVAC circuits
• Round form factor fits common capacitor mounting hardware
• Compact dimensions: 1.75 inches diameter by 3.125 inches height
• Direct OEM-style replacement reduces downtime on service calls

Compatibility

Designed as an OEM-style replacement run capacitor for single-phase PSC motors in residential and light commercial HVAC condensing units and air handlers rated for 370-volt capacitor circuits.

Installation Notes

Run capacitors must be installed by a qualified HVAC technician. Always disconnect and lock out power to the unit before handling capacitors, as they can retain a dangerous charge even after power is removed — discharge the capacitor safely before removal. Verify that the MFD rating and voltage rating of the replacement match or exceed the values on the existing capacitor. Follow all applicable NEC requirements and local electrical codes when servicing capacitor circuits.

Technical Specifications

• Capacitance: 20 MFD
• Voltage Rating: 370 volts
• Shape: Round
• Diameter: 1.75 inches
• Height: 3.125 inches
• UPC: 685744122142

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: M12214