15 uf/MFD ± 5% 370 or 440 Volt 50/60 Hz Oval Run Start Capacitor CBB65

15 uf/MFD ± 5% 370 or 440 Volt 50/60 Hz Oval Run Start Capacitor CBB65

Key Features

• Capacitance: 15 µF / MFD
• Tolerance: ± 5%
• Voltage Rating: 370 VAC or 440 VAC
• Frequency: 50 / 60 Hz
• Shape: Oval
• Dimensions: 1.97 in x 1.24 in x 2.56 in
• Terminals: 1/4 inch male quick-connect
• Construction: Metalized polypropylene film, oil-filled metal case
• Safety Standard: UL 810; No Polychlorinated Biphenyls (PCBs)
• Operating Temperature: -40°C to +70°C

Replaces / Cross-Reference Part Numbers

• Replaces any oval capacitor with matching 15 MFD and 370V or 440V specifications.
• CBB65-370V156A
• USA2034

Compatibility & Fitment

• For use in starting and running single-phase AC motors.
• Commonly used in HVAC systems, including central air conditioners and heat pumps.
• Fits applications for condenser fan motors, compressor motors, and blowers.
• Dual voltage rating allows replacement of both 370 VAC and 440 VAC capacitors.

When to Replace

• Motor hums but does not start or has difficulty starting.
• Fan blades turn slowly or require a manual push to begin rotating.
• AC unit is running but not cooling effectively.
• 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 equipment before beginning work.
• Safely discharge the existing capacitor by shorting the terminals with an insulated tool.
• The microfarad (µF/MFD) rating must match the original capacitor.
• The voltage rating of this capacitor must be equal to or greater than the one being replaced. A 440V capacitor can safely replace a 370V capacitor.
• Note the wiring configuration before disconnecting the old part.