Maintain the peak performance of your high-tonnage cooling systems with the CBB65 45uF 450V Air Cond Running Capacitor. This industrial-grade unit is specifically built for the extreme electrical and thermal demands of large residential and commercial air conditioning units. Housed in a rugged, oil-filled aluminum casing, it offers significantly better heat dissipation and safety than standard plastic capacitors, ensuring your compressor starts reliably and maintains high energy efficiency under heavy seasonal loads.
High-Capacity 45uF Output: Rated at 45uF ±5%, providing the substantial electrical energy storage required for high-torque compressors and larger HVAC blower motors.
Explosion-Proof Aluminum Design: Features an integrated "Protected 10,000AFC" safety mechanism that automatically disconnects the capacitor in the event of an electrical failure, preventing case rupture.
Self-Healing (SH) Dielectric: Equipped with high-tech internal metallized film that automatically repairs minor dielectric punctures, preventing total failure and extending the life of your HVAC unit.
Optimized Heat Management: The oil-filled metallic shell dissipates heat rapidly, making it ideal for outdoor condenser units exposed to direct sunlight and high ambient temperatures.
Professional Safety Certifications: Fully compliant with CQC and CE standards, with a 40/70/21 climatic rating for year-round reliability in harsh environments.
High-Tonnage AC Compressors: Ideal for 3.5-ton to 5-ton residential and light commercial air conditioning systems.
Heavy-Duty HVAC Motors: Supports larger outdoor fan motors and internal blower systems.
Commercial Refrigeration: Used in high-capacity refrigeration compressors for food storage and industrial cooling.
Heat Pump Systems: Provides stable starting and running torque in both heating and cooling operation modes.
Model: CBB65A.
Capacitance: 45uF ±5% SH.
Rated Voltage: 450V AC.
Frequency: 50/60Hz.
Can I use a 45uF capacitor if my old one was 40uF or 50uF?
For run capacitors, you must stay within ±5% of the motor's specified rating. Using a 45uF unit to replace a 40uF unit will likely cause the motor to run hot and fail prematurely. Always match the manufacturer's microfarad (uF) specification exactly.
Is it hard to install this 4-terminal unit?
No. Most CBB65 capacitors use a standardized terminal layout. Ensure you have disconnected the power and discharged the old capacitor before swapping the wires to the corresponding terminal sets on the new unit.
How do I know if my 45uF capacitor is failing?
Beyond a "humming" motor that won't start, look at the top of the aluminum housing. If the top is "bulged" or domed rather than flat, the internal safety protection has activated, and the part must be replaced immediately.
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