Rectorseal M12385 Run Capacitor 3.5 Mfd 450V Mini Split

Product Description

The RECTORSEAL M12385 is a run capacitor rated at 3.5 microfarads (MFD) and 450 volts, designed for use in mini split systems. Run capacitors provide a continuous phase-shifted current to motor windings, helping compressor and fan motors start and run efficiently. This capacitor measures 1.375 inches wide, 1.875 inches tall, and 0.75 inches deep, making it a compact form factor suited to the tight enclosures common in mini split outdoor units. Licensed HVAC technicians are the typical installers for this component.

This capacitor is intended for mini split air conditioning and heat pump systems where a compact, single-rated run capacitor is required. It is well suited to residential and light commercial mini split applications where the original capacitor has failed or is showing signs of reduced capacitance. When replacing a run capacitor in a mini split unit, verify the MFD rating and voltage rating match the original specification on the equipment nameplate before installing.

Key Features

• 3.5 MFD capacitance rating for precise motor support in mini split systems
• 450-volt rating provides a safe margin above typical mini split operating voltages
• Compact dimensions of 1.375 x 0.75 x 1.875 inches fit tight mini split enclosures
• Direct OEM-style replacement format simplifies swapping failed capacitors
• Single-rated design for dedicated compressor or fan motor circuits

Compatibility

Designed as an OEM-style replacement run capacitor for mini split air conditioning and heat pump systems requiring a 3.5 MFD, 450-volt single-rated capacitor.

Installation Notes

Run capacitor replacement should be performed by a licensed HVAC technician. Disconnect and lock out all power to the mini split system before opening the electrical enclosure, and discharge the existing capacitor fully before handling it, as capacitors can retain a dangerous charge even after power is removed. Confirm the replacement MFD and voltage ratings match the equipment nameplate before energizing the system.

Technical Specifications

• Capacitance: 3.5 MFD
• Voltage Rating: 450 volts
• Width: 1.375 inches
• Height: 1.875 inches
• Depth: 0.75 inches
• Application: Mini Split Systems
• UPC: 685744123859

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: M12385