Rectorseal M12223 Run Capacitor 45 Mfd 370V Round

Product Description

The RECTORSEAL M12223 is a round run capacitor rated at 45 microfarads (MFD) and 370 volts, designed for use in single-phase motors found in HVAC equipment. Run capacitors store and release electrical energy to keep motors running smoothly after startup, maintaining consistent torque and efficiency during operation. This unit ships in a round aluminum can housing and is a standard form factor for residential and light commercial HVAC service. HVAC technicians install this part when diagnosing a failed or weak capacitor on a condenser fan motor or compressor circuit. The 45 MFD rating and 370-volt rating are confirmed specifications for this SKU.

This capacitor is suited for residential and light commercial HVAC applications where a 45 MFD, 370-volt round capacitor is required. Typical installation scenarios include replacing a failed run capacitor on a condenser fan motor or single-phase compressor motor during a service call. The round case style is common in split-system air conditioners and heat pumps. This part is appropriate for any application where the equipment manufacturer specifies a 45 MFD, 370-volt round run capacitor.

Key Features

• 45 MFD capacitance rating for single-phase motor run circuits
• 370-volt AC rating suitable for standard residential HVAC equipment
• Round case form factor for straightforward bracket or strap mounting
• Compact dimensions at 2.0 inches wide by 4.25 inches tall for easy fit in tight equipment cabinets
• Lightweight at a shipping package size appropriate for field carry

Compatibility

Designed as an OEM-style replacement run capacitor for single-phase HVAC motors requiring a 45 MFD, 370-volt round capacitor. Verify the MFD rating, voltage rating, and terminal configuration against the original capacitor or equipment data plate before installation.

Installation Notes

Installation should be performed by a licensed HVAC technician. Always disconnect and lock out power to the unit before removing the access panel or handling capacitor terminals. Capacitors retain a charge even after power is removed — discharge the capacitor safely using a resistor discharge tool before handling. Follow all applicable local electrical codes and NEC guidelines when replacing capacitors in HVAC equipment.

Technical Specifications

• Capacitance: 45 MFD
• Voltage Rating: 370 volts
• Case Style: Round
• Width: 2.0 inches
• Length: 2.0 inches
• Height: 4.25 inches
• UPC: 685744122234

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: M12223