Rectorseal M12384 Run Capacitor 3 Mfd 450V Mini Split

Product Description

The RECTORSEAL M12384 is a run capacitor rated at 3 microfarads (MFD) and 450 volts, designed for use in mini split air conditioning systems. Run capacitors provide the continuous phase shift needed to keep the compressor or fan motor running efficiently after startup. This capacitor maintains a stable electrical field during operation, reducing motor strain and helping the system maintain its rated efficiency. HVAC technicians install this component during routine maintenance or when a failed capacitor is identified as the cause of a non-starting or underperforming motor. Its compact form factor suits the tight electrical compartments common in mini split indoor and outdoor units.

This capacitor is intended for mini split system applications where a 3 MFD, 450V run capacitor is specified. It is well suited for residential and light commercial mini split installations. Technicians servicing ductless systems will find this a direct-fit replacement when the original capacitor matches the 3 MFD and 450V ratings. Always verify the MFD and voltage rating on the original capacitor before installation.

Key Features

• 3 MFD capacitance rating for precise motor phase support
• 450-volt rating provides headroom above standard 240-volt mini split circuits
• Compact dimensions fit tight electrical compartments in mini split units
• Designed as a run capacitor for continuous-duty motor operation

Compatibility

Designed as an OEM-style replacement run capacitor for mini split air conditioning systems requiring a 3 MFD, 450V rated component.

Installation Notes

Run capacitor replacement is performed by licensed HVAC technicians. Always disconnect and lock out power to the mini split system before accessing the electrical compartment. Capacitors can retain a dangerous charge even after power is removed — discharge the capacitor safely before handling. Follow local electrical codes and manufacturer wiring diagrams when connecting the replacement capacitor.

Technical Specifications

• Capacitance: 3 MFD
• Voltage Rating: 450 volts
• Width: 1.25 inches
• Height: 1.5 inches
• Depth: 0.75 inches
• UPC: 685744123842

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: M12384