Rectorseal M12191 Dual Run Capacitor 50/5 Mfd 370V

Product Description

The RECTORSEAL M12191 is a dual run capacitor rated at 50/5 microfarads (MFD) and 370 volts, designed for use in residential and light commercial HVAC systems. Run capacitors maintain the voltage and current phase relationship needed to keep compressor and fan motors running efficiently. This round-style capacitor provides two capacitance values in a single can, serving both the compressor and the condenser fan motor simultaneously. HVAC technicians install this component during routine maintenance, motor replacement, or capacitor failure diagnosis. It measures 2.0 inches wide by 4.375 inches tall.

This capacitor is a standard replacement for split-system air conditioners and heat pumps where a single dual run capacitor serves both the compressor and outdoor fan motor. The round form factor is one of the most common configurations found in residential condensing units. It is appropriate for systems requiring a 50 MFD compressor rating and a 5 MFD fan motor rating at 370 volts AC. HVAC service professionals replace these components when a system presents with hard-start conditions, motor failure to start, or capacitor bulging and leakage.

Key Features

• Dual capacitance rating: 50 MFD for compressor, 5 MFD for condenser fan motor
• 370-volt AC rating suitable for standard residential condensing unit applications
• Round form factor for straightforward drop-in replacement in common capacitor brackets
• Compact dimensions: 2.0 inches wide by 4.375 inches tall
• Single-can dual run design eliminates the need for two separate 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 50/5 MFD, 370-volt round run capacitor.

Installation Notes

Dual run capacitors are installed by licensed HVAC technicians. Always disconnect and lock out power to the condensing unit at the disconnect box before servicing capacitors, and discharge the existing capacitor fully before handling, as capacitors can retain a dangerous charge after power is removed. Verify the MFD ratings and voltage rating of the replacement match the nameplate data on the existing unit before installation. Follow local codes and manufacturer guidelines when performing electrical component replacement on refrigerant-containing systems.

Technical Specifications

• Capacitance: 50/5 MFD
• Voltage Rating: 370 volts AC
• Form Factor: Round
• Width: 2.0 inches
• Height: 4.375 inches
• Depth: 2.0 inches
• UPC: 685744121916

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: M12191