RECTORSEALMARS12184 MARS-12184 Dual Run Capacitor 25/5 Mfd

Product Description

The RECTORSEALMARS12184 MARS-12184 is a dual run capacitor rated at 25/5 microfarads (MFD) and 440 volts, designed for use in residential and light commercial HVAC systems. Dual run capacitors serve two motor windings simultaneously, supporting both the compressor and the condenser fan motor from a single component. This reduces cabinet space requirements and simplifies replacement. The 440-volt rating provides a safety margin above the standard 370-volt operating voltage found in most split-system air conditioners and heat pumps. Licensed HVAC technicians install and replace this component as part of routine service and seasonal maintenance.

This capacitor is suited for split-system air conditioners, heat pumps, and package units that use a shared capacitor for the compressor and condenser fan motor. It is a common replacement item during summer service calls when capacitor failure causes compressor hard-start symptoms or condenser fan motor problems. The 25 MFD rating supports the compressor winding load, while the 5 MFD rating supports the fan motor winding load.

Key Features

• Dual run design supports both compressor and condenser fan motor from a single unit
• 25/5 MFD dual capacitance rating for split-system HVAC applications
• 440-volt rating compatible with both 370-volt and 440-volt system requirements
• Compact form factor reduces panel space compared to two separate run capacitors

Compatibility

Designed as an OEM-style replacement dual run capacitor for residential and light commercial split-system air conditioners and heat pumps requiring a 25/5 MFD 440-volt dual run capacitor.

Installation Notes

Dual run capacitors are installed and replaced by licensed HVAC technicians. Disconnect and lock out all power to the unit before servicing the capacitor, as capacitors retain a dangerous voltage charge even after power is removed — discharge the capacitor safely before handling. Work performed on refrigerant-containing systems may require EPA Section 608 certification, and all electrical work should comply with applicable NEC requirements. Do not substitute a capacitor with a lower voltage rating or a significantly different MFD value without verifying compatibility with the motor manufacturer specifications.

Technical Specifications

• Capacitance: 25/5 MFD
• Voltage Rating: 440 volts
• Type: Dual Run Capacitor

Standard Information

• Brand: RECTORSEALMARS12184
• Manufacturer Part Number: MARS-12184