CBB65 65 uF/MFD 370-440VAC Round Run Start Capacitor

Key Features

• Model: CBB65
• Capacitance: 65 uF/MFD
• Capacitance Tolerance: ±5%
• Voltage Rating: 370/440 VAC
• Frequency: 50/60 Hz
• Shape: Round
• Construction: Aluminum case, oil-filled
• Operating Temperature: -25°C to 85°C
• Safety: No PCBs, 10,000 AFC fault current protection
• Terminals: Multi-spade quick-connect

Replaces / Cross-Reference Part Numbers

• Replaces any single run round capacitor with matching 65 MFD capacitance and 370V or 440V specifications.
• Verify physical dimensions for proper fit.

Compatibility & Fitment

• Used for single-phase motor start and run applications.
• Commonly found in AC units, heat pumps, compressors, and condenser fan motors.
• Compatible with systems requiring a 370 VAC or 440 VAC rated capacitor. A 440V capacitor can replace a 370V capacitor, but not vice-versa.

When to Replace

• Motor hums but fails to start or starts slowly.
• Fan blades do not spin or turn at a reduced speed.
• Compressor fails to start.
• Visible signs of damage such as swelling, bulging, or fluid leakage from the capacitor case.
• Capacitance measures outside the ±5% tolerance range when tested with a multimeter.

Installation Tips

• Disconnect all electrical power to the unit before performing service.
• Safely discharge the existing capacitor by shorting the terminals with an insulated-handle screwdriver.
• Note the wire placement on the old capacitor's terminals before disconnecting.
• Ensure the new capacitor's voltage and MFD ratings match the component being replaced.
• Professional installation is recommended if you are not familiar with electrical service procedures.