70+5 uF MFD ±5% 370/440 VAC CBB65 Dual Run Circular Start Capacitor - Fits AC Motor Run, Fan Start, Heat Pump

70+5 uF ±5% 70/5 MFD 370/440 VAC Dual Run Start Round Capacitor

Key Features

• Capacitance Rating: 70 + 5 Microfarad (MFD/uF)
• Capacitance Tolerance: ±5%
• Voltage Rating: 370 / 440 Volts AC (VAC)
• Frequency: 50 / 60 Hertz (Hz)
• Configuration: Dual run capacitor in a single round case
• Terminals: Three terminals labeled for Common, Fan, and Compressor connections
• Construction: Aluminum case, oil-filled, non-PCB dielectric
• Safety: Integrated 10,000 AFC pressure-sensitive interrupter
• Operating Temperature: -40 °C to +70 °C (-104 °F to +158 °F)
• Standard: Tested to EIA-456-A specifications

Replaces / Cross-Reference Part Numbers

• Replaces any round or oval dual run capacitor with matching 70/5 MFD and 370V or 440V specifications. A 440V capacitor can be used to replace a 370V capacitor.
• Common part number formats include: CBB65, P291-7054R, USA2236, C3705R, C4705R, TRCD705, and CAP05070.
• Compatible replacement for capacitors from brands such as Genteq, Packard, Titan, and TEMCo.

Compatibility & Fitment

• Used in air conditioning units, heat pumps, condensing units, and other HVAC systems to run a compressor motor and a fan motor simultaneously.
• Physical dimensions must be verified for fitment in the existing mounting bracket.
  • Diameter: Approx. 2.36 in (60 mm)
  • Case Height: Approx. 5.4 in (137 mm)
• The dual voltage rating allows for use in both 370 VAC and 440 VAC applications.

When to Replace

• Compressor or fan motor hums but fails to start.
• AC unit requires a manual "push start" to get the fan spinning.
• Air conditioner blows warm air.
• Visible damage to the capacitor, such as a bulging top, swelling, or fluid leakage.
• Capacitance measurement is outside the rated ¬±5% tolerance when tested with a multimeter.

Installation Tips

• WARNING: Disconnect all electrical power to the HVAC unit before handling or replacing the capacitor.
• Safely discharge the existing capacitor by carefully shorting across the terminals with an insulated screwdriver.
• Before disconnecting, note the wire colors and their corresponding terminals ("C", "HERM", "FAN").
• Connect the run wire from the compressor to the "HERM" terminal.
• Connect the run wire from the fan motor to the "FAN" terminal.
• Connect the common wire from the contactor to the "C" terminal.
• Ensure all connections are secure before restoring power.