Diversitech 4jr0520 Motor Run Capacitor 20+5 Mfd 440V

Product Description

The DIVERSITECH 4jr0520 is a dual-section round motor run capacitor rated at 20 plus 5 microfarads (MFD) and 440 volts. Motor run capacitors maintain the phase shift in single-phase motor windings during continuous operation, which keeps compressor and fan motors running efficiently and at the correct torque. This round-style dual-rated unit supports both the compressor section and the condenser fan motor section in a single housing, reducing parts count on the repair call. HVAC technicians install this capacitor during compressor or fan motor replacements and as a direct swap when testing reveals a capacitor outside of tolerance.

This capacitor is suited for residential and light commercial HVAC applications, primarily split-system and package unit air conditioners and heat pumps. A dual-rated capacitor is the standard configuration in these systems, with one section dedicated to the compressor motor and one to the outdoor fan motor. The round cylindrical form factor is the most common style found in residential condensing units and is compatible with standard capacitor bracket mounts and disconnect clips used throughout the industry.

Key Features

• Dual-section rating: 20 MFD and 5 MFD in a single round housing
• 440-volt AC rating suitable for standard residential and light commercial HVAC equipment
• Round cylindrical form factor fits common bracket and clip mounts in condensing units
• Supports compressor and condenser fan motor sections simultaneously
• Reduces inventory needs by combining two capacitor functions in one unit

Compatibility

Designed as an OEM-style replacement motor run capacitor for single-phase residential and light commercial HVAC condensing units requiring a dual-rated 20 plus 5 MFD, 440-volt round capacitor.

Installation Notes

Motor run capacitors are installed by licensed HVAC technicians. Disconnect and lock out all power to the condensing unit before servicing the capacitor. Discharge the capacitor fully before handling, as capacitors can retain a dangerous charge even when power is removed. Verify that the replacement MFD values and voltage rating match the equipment nameplate specifications before installation.