Heat Controller MARS-12292 Dual Run Capacitor 55/5 Mfd 440V

Product Description

The HEAT CONTROLLER MARS-12292 is a dual run capacitor rated at 55/5 MFD and 440 volts, designed to support the start and continuous operation of compressor and fan motor circuits in split-system and packaged HVAC equipment. Built with an aluminum housing in a round form factor, this capacitor stores and releases the electrical charge needed to keep motors running efficiently under load. It is a direct-replacement component installed by licensed HVAC technicians during routine maintenance or motor failure diagnosis. The 440-volt rating provides a margin of safety across the range of voltages found in residential and light commercial cooling systems.

This dual capacitor serves two motor circuits from a single round can — one 55 MFD side for the compressor and one 5 MFD side for the condenser fan motor, which is the standard configuration in a wide range of residential central air conditioning and heat pump condensing units. Its round shape and 3.875-inch height fit the mounting brackets common to most outdoor condensing unit control compartments. HVAC technicians typically stock dual run capacitors in common MFD ratings because capacitor failure is one of the most frequent causes of no-cooling service calls.

Key Features

• Dual-section design: 55 MFD compressor side and 5 MFD fan motor side in a single round can
• 440-volt rating provides operating headroom across residential and light commercial systems
• Round aluminum housing resists corrosion in outdoor condensing unit environments
• 3.875-inch height fits standard condenser unit capacitor brackets
• Drop-in replacement format reduces labor time on service calls

Compatibility

Designed as an OEM-style replacement dual run capacitor for residential and light commercial HVAC condensing units requiring a 55/5 MFD, 440-volt, round-style capacitor.

Installation Notes

Capacitor replacement is performed by licensed HVAC technicians. Always disconnect and lock out power to the condensing unit at the disconnect box before opening the control compartment. Capacitors can hold a dangerous charge even after power is removed — discharge the capacitor safely using an approved resistor tool before handling. Follow NEC guidelines for equipment wiring and verify the MFD and voltage ratings match the motor nameplate specifications before installation.

Technical Specifications

• MFD Rating: 55/5 MFD
• Voltage: 440 volts
• Shape: Round
• Height: 3.875 inches
• Material: Aluminum
• Type: Dual Run Capacitor

Standard Information

• Brand: HEAT CONTROLLER
• Manufacturer Part Number: MARS-12292