Cambridge 203081 Dual Run Capacitor 40+7.5 Mfd 440V

Product Description

The CAMBRIDGE 203081 is a dual round motor run capacitor rated at 40 plus 7.5 microfarads (MFD) and 440 volts, designed for continuous-duty operation in single-phase HVAC motors. It operates on both 50 Hz and 60 Hz systems, making it suitable across a broad range of equipment. Motor run capacitors maintain a phase-shifted current to the start winding during normal operation, improving motor efficiency and reducing current draw. This capacitor serves both the compressor and the fan motor simultaneously in a single round housing, a common configuration in split-system and packaged HVAC equipment. Installation is typically performed by a licensed HVAC technician during a compressor or fan motor service call.

This dual capacitor is used in residential and light commercial HVAC applications where both the compressor and the outdoor fan motor require run capacitor support. The 40 MFD section serves the compressor motor and the 7.5 MFD section serves the condenser fan motor. The round form factor fits standard capacitor brackets found in most outdoor condensing units. It is a direct-replacement style component suited for split-system air conditioners and heat pumps that use a dual run capacitor in the condensing unit.

Key Features

• Dual capacitance in a single round housing: 40 MFD for compressor, 7.5 MFD for condenser fan motor
• 440-volt rating provides a voltage margin above the 370-volt systems it commonly serves
• Compatible with both 50 Hz and 60 Hz power systems
• Round housing fits standard condensing unit capacitor mounting brackets
• Replaces failed or weakened dual run capacitors without rewiring to a separate capacitor setup

Compatibility

Designed as an OEM-style replacement dual run capacitor for residential and light commercial split-system air conditioners and heat pumps that require a 40 plus 7.5 MFD, 440-volt round dual capacitor in the condensing unit.

Installation Notes

A licensed HVAC technician should install this capacitor. Disconnect and lock out power to the condensing unit before removing the old capacitor, and discharge the existing capacitor fully before handling — stored charge can cause serious injury. Confirm MFD ratings and voltage rating match the equipment nameplate before installation. Follow all applicable local codes and manufacturer wiring diagrams when reconnecting terminals.

Technical Specifications

• Capacitance: 40 plus 7.5 MFD
• Voltage Rating: 440 volts
• Frequency: 50/60 Hz
• Configuration: Dual round
• UPC: 680183164203

Standard Information

• Brand: CAMBRIDGE
• Manufacturer Part Number: 203081