Rectorseal M12212 Round Run Capacitor 17.5 Mfd 370V

Product Description

The RECTORSEAL M12212 is a round run capacitor rated at 17.5 microfarads (MFD) and 370 volts, designed to support the continuous operation of single-phase motors in HVAC systems. Run capacitors maintain a phase shift in the motor winding circuit, improving torque and efficiency during normal operation. This unit is housed in a compact round aluminum can, measuring 1.75 inches in diameter and 3.125 inches in height. It is a standard replacement component installed by licensed HVAC technicians during routine service calls or motor replacement work on air conditioning and heat pump equipment.

This capacitor is suited for residential and light commercial HVAC applications where a 17.5 MFD, 370-volt round capacitor is specified. Typical installations include condenser fan motors and compressor run circuits in split-system air conditioners and heat pumps. It is compact enough to fit in tight electrical compartments within outdoor condensing units. Technicians should verify the MFD rating and voltage rating of the original capacitor before installing a replacement to ensure proper motor performance.

Key Features

• 17.5 MFD capacitance rating for accurate motor circuit support
• 370-volt rating suitable for standard residential HVAC applications
• Round form factor fits common capacitor mounting brackets and clips
• Compact dimensions: 1.75 inches diameter by 3.125 inches height
• Designed as a direct replacement for failed or degraded run capacitors

Compatibility

Designed as an OEM-style replacement run capacitor for residential and light commercial HVAC systems requiring a 17.5 MFD, 370-volt round capacitor.

Installation Notes

Run capacitors must be installed by a qualified HVAC technician. Always disconnect and lock out power to the condensing unit before opening the electrical compartment. Capacitors can retain a dangerous charge even after power is removed — discharge the capacitor using an appropriate resistive discharge tool before handling. Confirm the replacement MFD and voltage ratings match the original equipment specifications before completing the installation.

Technical Specifications

• Capacitance: 17.5 MFD
• Voltage Rating: 370 volts
• Shape: Round
• Diameter: 1.75 inches
• Height: 3.125 inches
• Depth: 1.75 inches
• UPC: 685744122128

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: M12212