Ensure your cooling system stays operational during peak heat with the CBB65 20uF 450V Air Cond Running Capacitor. Unlike plastic-housed motor capacitors, the CBB65 series is built with a rugged, oil-filled aluminum case specifically designed for the demanding environment of HVAC compressors and fan motors. This unit provides continuous electrical support, helping your air conditioner start smoothly and run efficiently while protecting against power surges.
Heavy-Duty 20uF Capacity: Rated at 20uF ±5%, providing the precise capacitance needed for optimal compressor phase shift and motor efficiency.
Explosion-Proof Aluminum Case: Features a "Protected 10,000AFC" internal safety mechanism that disconnects the capacitor in the event of a failure, preventing case rupture.
Superior Heat Dissipation: The oil-filled aluminum housing allows for much faster heat dissipation than plastic alternatives, making it ideal for high-ambient outdoor units.
450V AC High-Voltage Resilience: Built to handle standard 450VAC applications across 50/60Hz frequencies, ensuring durability against domestic power fluctuations.
Certified Industry Standards: Fully compliant with CQC and CE safety certifications, with a climatic category rating of 40/70/21.
Air Conditioner Compressors: Essential for the start and run cycles of residential AC units.
HVAC Condenser Fans: Supports the outdoor fan motor for consistent heat exchange.
Refrigeration Units: Suitable for commercial cooling and refrigeration compressor motors.
Heat Pumps: Reliable performance in both heating and cooling operation modes.
Model: CBB65A.
Capacitance: 20uF ±5%.
Rated Voltage: 450V AC.
Frequency: 50/60Hz.
Protective Rating: 10,000 AFC (Available Fault Current).
What is the difference between CBB60 and CBB65?
CBB60 units (like the white plastic model) are generally used for washing machines or pumps. CBB65 units (aluminum) are specifically designed for HVAC systems because their metal shells dissipate heat much better and include higher-rated internal safety protections.
Can I use a 20uF capacitor to replace a 15uF or 25uF unit?
It is always best to match the original rating exactly. While a motor might run, using the wrong capacitance can cause the compressor to overheat or shorten its lifespan. A variance of ±5% is standard.
How do I tell if my AC capacitor is "bulged" or dead?
If the top of the aluminum case is rounded or pushed upward, the internal safety protection has activated, and the capacitor must be replaced. Electrical failure is also common if your AC compressor "hums" but won't kick on.
