Rectorseal m14031 Motor Run Capacitor 7.5 Mfd 440/370V

Product Description

The RECTORSEAL m14031 is an oval motor run capacitor rated at 7.5 microfarads (MFD) and dual-voltage compatible at 440 and 370 volts. It operates at both 50 and 60 Hz, making it suitable for a wide range of HVAC equipment found in North American and international installations. Motor run capacitors maintain a continuous phase shift in the start winding during operation, helping single-phase motors run efficiently and reducing current draw. HVAC technicians install this capacitor as a direct replacement in systems where the original unit has failed or shows signs of capacitance loss or bulging.

This capacitor is used in residential and light commercial HVAC applications, including condensing units, air handlers, and heat pumps. It is sized for single-phase fan motors and compressor motors that require a 7.5 MFD run capacitor at 440 or 370 volt ratings. The oval form factor fits standard capacitor brackets and mounting straps commonly found in outdoor condensing unit cabinets and air handler blower compartments.

Key Features

• 7.5 MFD capacitance for single-phase motor run applications
• Dual-voltage rating: 440 volts and 370 volts
• 50/60 Hz compatibility for broad equipment fitment
• Oval form factor fits standard HVAC capacitor mounting brackets
• Continuous-duty design suited for year-round operation in condensing units and air handlers

Compatibility

Designed as an OEM-style replacement motor run capacitor for single-phase HVAC motors rated at 7.5 MFD and 440 or 370 volts in residential and light commercial systems.

Installation Notes

Motor run capacitors must be installed by a qualified HVAC technician. Disconnect and lock out all power to the unit before handling the capacitor, and discharge the old capacitor using an approved discharge tool before removal, as capacitors retain a dangerous charge after power is removed. Confirm the replacement MFD rating and voltage rating match the original equipment nameplate before installation. Secure the capacitor firmly in the mounting bracket to prevent vibration damage during operation.