Mars M12805 Run Capacitor 5 Mfd 440V Round

Product Description

The MARS M12805 is a round run capacitor rated at 5 microfarads (MFD) and 440 volts, designed for use in single-phase motors found in HVAC equipment. Run capacitors maintain a continuous phase-shifted current to keep the motor winding energized during normal operation, improving efficiency and preventing premature motor failure. This unit is a direct-replacement style capacitor suitable for installation by licensed HVAC technicians servicing residential and light commercial systems. The round form factor is a common configuration in air conditioning condensers and air handlers.

This capacitor is applicable to single-phase compressor motors, condenser fan motors, and blower motors where a 5 MFD 440V run capacitor is specified. The 440-volt rating provides compatibility with both 370V and 440V motor circuits, making it a versatile stock item for field service calls on air conditioning, heat pump, and fan coil systems.

Key Features

• 5 MFD capacitance rating for precision motor starting and running support
• 440V rating compatible with 370V and 440V motor circuits
• Round form factor for straightforward replacement in standard capacitor brackets
• Designed for continuous-duty run capacitor applications in HVAC motors

Compatibility

Designed as an OEM-style replacement run capacitor for single-phase HVAC motors requiring a 5 MFD 440V round capacitor.

Installation Notes

Run capacitors must be installed by a qualified HVAC technician. Always disconnect and lock out power to the unit before servicing capacitors, and discharge any stored voltage using an appropriately rated discharge resistor or tool before handling. Verify the MFD and voltage ratings match the motor nameplate specifications before installation. Improper capacitor sizing can result in motor damage or reduced equipment life.

Technical Specifications

• Capacitance: 5 MFD
• Voltage Rating: 440V
• Form Factor: Round
• UPC: 685744128052

Standard Information

• Brand: MARS
• Manufacturer Part Number: M12805