Rcd p291-5054rs Dual Run Capacitor 50+5 Mfd 370-440V

Product Description

The RCD p291-5054rs is a dual run capacitor rated at 50 plus 5 microfarads (MFD) and 370-440 VAC, designed for continuous-duty operation in air conditioning and heat pump systems. This round aluminum capacitor provides the phase-shifted current needed to keep both the compressor and the condenser fan motor running at full efficiency. It operates across a wide temperature range of -40 to 70 degrees C and is compatible with both 50 Hz and 60 Hz systems. Licensed HVAC technicians install this part during capacitor replacement service calls, typically when a weak or failed capacitor is confirmed through capacitance measurement.

This capacitor is suited for residential and light commercial split-system air conditioners and heat pumps where a dual run capacitor serves the compressor and fan motor simultaneously. It fits a round capacitor mounting bracket and uses quick-connect terminals for straightforward wiring. Confirmed compatible models include 661WJX048000ACAA, 38YCQ048 300, and 561WJX048000AAAA.

Key Features

• Dual capacitance rating: 50 MFD plus 5 MFD in a single round housing
• Wide voltage range: 370-440 VAC accommodates varying system supply voltages
• Quick-connect terminals for fast, secure wiring connections
• Aluminum construction for durable, long-service operation
• Tight tolerance of plus or minus 3 percent for consistent electrical performance
• Rated for 50/60 Hz use across North American and international systems

Compatibility

Compatible models listed in product data include 661WJX048000ACAA, 38YCQ048 300, and 561WJX048000AAAA. Designed as an OEM-style dual run capacitor replacement for residential and light commercial air conditioning and heat pump systems requiring a 50 plus 5 MFD, 370-440 VAC round capacitor.

Installation Notes

Installation must be performed by a licensed HVAC technician. Disconnect and lock out power to the unit before opening the electrical panel or handling capacitors — capacitors retain a dangerous charge even after power is removed and must be safely discharged before removal. Verify the replacement capacitor matches the original MFD ratings and voltage rating before installing. Follow all applicable local codes and the equipment manufacturer's service instructions.

Technical Specifications

• Capacitance: 50 plus 5 MFD
• Voltage: 370-440 VAC
• Frequency: 50/60 Hz
• Type: Dual Run
• Shape: Round
• Terminal Type: Quick Connect
• Tolerance: plus or minus 3 percent
• Temperature Rating: -40 to 70 degrees C
• Length: 4.1 inches
• Width: 2.7 inches
• Height: 2.6 inches
• Material: Aluminum

Standard Information

• Brand: RCD
• Manufacturer Part Number: p291-5054rs