Rectorseal M12125 Dual Run Capacitor 75/7.5 Mfd 440V

Product Description

The RECTORSEAL M12125 is a round dual run capacitor rated at 75/7.5 microfarads (MFD) and 440 volts, designed to support the start and run cycles of single-phase compressor and fan motor circuits in residential and light commercial HVAC systems. Dual run capacitors store and release electrical energy to maintain steady motor operation, reducing amperage draw and extending motor life. This capacitor measures 2.5 inches in diameter and 5.25 inches in height, fitting standard round capacitor mounting brackets. Licensed HVAC technicians are the primary installers of this component during system startup, preventive maintenance, or capacitor failure calls.

This dual run capacitor is suited for split-system air conditioners and heat pumps where a single capacitor serves both the compressor and the condenser fan motor. The 75 MFD side supports the compressor, while the 7.5 MFD side supports the fan motor. The 440-volt rating provides compatibility across systems that call for 370-volt or 440-volt dual run capacitors, making it a practical service replacement in a wide range of residential and light commercial cooling equipment.

Key Features

• Dual run design supports both compressor and condenser fan motor from a single capacitor
• Rated 75/7.5 MFD for split compressor and fan motor capacitance requirements
• 440-volt rating covers both 370V and 440V application requirements
• Round form factor fits standard round capacitor mounting brackets and clamps
• Compact footprint: 2.5 inches diameter by 5.25 inches height

Compatibility

Designed as an OEM-style replacement dual run capacitor for residential and light commercial split-system air conditioners and heat pumps requiring a 75/7.5 MFD, 440-volt round capacitor.

Installation Notes

Installation must be performed by a licensed HVAC technician. Disconnect and lock out all power to the unit before handling any capacitor — capacitors retain a lethal charge even after power is removed and must be safely discharged before removal. Verify that replacement MFD ratings match the equipment nameplate specifications before installing. Follow applicable NEC requirements and local electrical codes for safe wiring and component replacement.

Technical Specifications

• Capacitance: 75/7.5 MFD
• Voltage Rating: 440 volts
• Shape: Round
• Diameter: 2.5 inches
• Height: 5.25 inches
• UPC: 685744121251

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: M12125