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The RCD p291-3554rs is a dual run capacitor rated at 35+5 microfarads (MFD) and 370/440 volts AC, designed for residential and light commercial HVAC equipment. It stabilizes electrical current to the compressor and fan motor simultaneously during continuous operation, helping both components start and run efficiently. Rated for 50/60 Hz service, this round aluminum capacitor measures 5.8 inches in diameter and 4 inches in height. Quick-connect terminals simplify replacement in the field. Licensed HVAC technicians install this component during routine maintenance or when a weak or failed capacitor is causing hard-start conditions, reduced cooling output, or motor failure.
This dual run capacitor is suited for heat pump and air conditioning applications where a single round capacitor serves both the compressor and the condenser fan motor. Compatible equipment cited in source data includes the 50ZH 030 300, 50VL D30 30, and 50VT C24 30 units. Its tolerance of plus or minus 6 percent and temperature rating of -29 to 68 degrees C make it appropriate for a wide range of operating environments in split and packaged heat pump systems.
Source data lists compatible units including the 50ZH 030 300, 50VL D30 30, and 50VT C24 30. Designed as an OEM-style replacement dual run capacitor for heat pump and central air conditioning equipment requiring a 35+5 MFD, 370/440-volt round capacitor.
Capacitor replacement is performed by a licensed HVAC technician. Before servicing, disconnect and lock out power to the unit at the disconnect box and allow the existing capacitor to fully discharge before handling terminals. Verify MFD rating, voltage rating, and terminal configuration match the original component prior to installation. Follow applicable local electrical codes and manufacturer service procedures when replacing run capacitors in refrigeration and air conditioning equipment.
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