Mars 12642 Dual Run Capacitor 65/5 Mfd 440V Round

Product Description

The MARS 12642 is a dual run capacitor rated at 65/5 microfarads (MFD) and 440 volts, housed in a round case. Dual run capacitors serve two motor loads simultaneously - typically the compressor and the condenser fan motor - within a single unit. This design reduces the number of discrete components in the electrical panel and simplifies replacement. The 12642 is a standard replacement part installed by licensed HVAC technicians during routine capacitor failure diagnosis or as part of a preventive maintenance program on residential and light commercial air conditioning and heat pump systems.

This capacitor is suited for residential and light commercial HVAC applications where a round dual run capacitor is specified. It supports systems that require a compressor start and run circuit combined with a condenser fan motor run circuit in one component. Technicians frequently encounter this capacitor configuration in split-system air conditioners and heat pumps. The 65 MFD rating addresses higher-demand compressor loads, while the 5 MFD rating serves the condenser fan motor.

Key Features

• Dual capacitance rating of 65/5 MFD supports compressor and condenser fan motor simultaneously
• 440-volt rating provides compatibility across a wide range of single-phase residential HVAC equipment
• Round case design fits standard capacitor mounting brackets and clips used in most condenser units
• Single-unit replacement reduces component count in the electrical compartment

Compatibility

Designed as an OEM-style replacement dual run capacitor for residential and light commercial split-system air conditioners and heat pumps that specify a round 65/5 MFD 440-volt dual run capacitor.

Installation Notes

Dual run capacitors are installed by licensed HVAC technicians. Disconnect and lock out all power to the condensing unit before servicing the electrical compartment - capacitors retain a dangerous charge even after power is removed and must be safely discharged prior to handling. Verify the replacement capacitor matches the original MFD ratings and voltage rating before installation. Follow applicable NEC requirements for low-voltage wiring and equipment access during service.