Lennox 50M72 Dual Run Capacitor 50/5 Mfd 370V Round

Product Description

The LENNOX 50M72 is a dual run capacitor rated at 50/5 microfarads (MFD) and 370 volts, designed for use in HVAC systems. Run capacitors provide continuous phase-shifted current to the compressor and fan motor windings, keeping both running efficiently after startup. The dual configuration allows a single unit to serve both the compressor and the condenser fan motor simultaneously. The round form factor is a common physical style found in residential and light commercial split systems. This part is installed by licensed HVAC technicians as a direct replacement when a failed or weakened capacitor is causing hard starts, motor overheating, or reduced system efficiency.

The 50M72 is suited for residential and light commercial HVAC applications where the compressor and condenser fan motor require shared capacitor support. The 50 MFD side typically serves the compressor, while the 5 MFD side supports the condenser fan motor. This round-style capacitor fits into standard capacitor mounting brackets found inside condenser unit electrical compartments. It is a common service replacement part installed during seasonal tune-ups or emergency no-cool calls.

Key Features

• Dual run capacitor supports both compressor and condenser fan motor from a single unit
• 50/5 MFD rating provides correct capacitance for typical residential split-system configurations
• 370-volt rating suitable for standard single-phase residential HVAC equipment
• Round form factor fits standard condenser unit capacitor mounting hardware
• Compact and lightweight at 0.8 pounds for easy handling during service calls

Compatibility

Designed as an OEM-style replacement dual run capacitor for residential and light commercial HVAC systems requiring a 50/5 MFD, 370-volt, round-style capacitor.

Installation Notes

Installation should be performed by a licensed HVAC technician. Disconnect and lock out all electrical power to the unit before opening the electrical compartment and handling the capacitor. Capacitors store a lethal electrical charge even after power is removed — always discharge the capacitor safely using an appropriate resistive discharge tool before touching terminals. Verify the replacement MFD ratings and voltage rating match the original unit's nameplate specifications before installing.

Technical Specifications

• Capacitance: 50/5 microfarads (MFD)
• Voltage Rating: 370 volts
• Type: Dual Run Capacitor
• Shape: Round
• Weight: 0.8 pounds
• Application: HVAC System

Standard Information

• Brand: LENNOX
• Manufacturer Part Number: 50M72