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Item #:
55678799
BOJACK 40 uF 370V 450V AC CBB65 Motor and Fan Starting Round Capacitor 40 MFD 10000AFC
Item #:
55678799
IMP 21
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BOJACK high quality CBB65B composite capacitor suitable for 370 or 450 VAC applications
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What Stands Out
High Voltage Rating
With a voltage rating of 370V to 450V AC, the BOJACK capacitor is designed for robust performance in demanding electrical environments, ensuring reliability and safety in motor and fan applications.
Efficient Performance
This 40 uF capacitor provides efficient starting power for motors and fans, enhancing their performance and extending their operational lifespan, which is crucial for both residential and industrial applications.
Durable Build
Built to last, the BOJACK capacitor features a durable construction that withstands high temperatures and electrical stress, making it a cost-effective investment for long-term use in various machinery.
Product Details
- BOJACK 40 uF 370V 450V AC CBB65 Motor and Fan Starting Round Capacitor
- Replaceable 370 VAC & 450 VAC Capacitors
- Rated Voltage: AC 370V/450V, frequency: 50/60Hz, temperature coefficient: 40/70/21
- Engineered for safety with 10000 AFC Anti Explosion Pressure Switch
- Uses Castor Oil for Heat Resistance and Anti-Explosion
- Technical Parameters: Model: CBB65B, Capacitance: 40μF, Capacitance tolerance: ± 5%, Rated voltage: 370V / 450VAC, Rated frequency: 50 / 60Hz, Tangent of loss angle: ≤0.002 (100Hz), Voltage between poles: 2Un 60s, Polar shell withstand voltage: 2000V 60s, Insulation resistance: RC≥3000M Ω · μF
| Capacitance | 40 Microfarad |
| Item Shape | Round |
| Operating Voltage | 450 Volts |
| Capacitance Tolerance | 5 |
| Maximum Voltage | 450 Volts |
| Mounting Type | Snap-In Mount |
| Upper Temperature Rating | 180 Degrees Fahrenheit |
| Material Type | Copper |
| Item Dimensions W x H | 1.97"W x 3.94"H (5 cm) |
| Brand Name | BOJACK |
| Manufacturer | BOJACK |
| UPC | 762917044446 |
| Part Number | BJ-CPT-40UF |
| Model | BJ-CPT-40UF |
| Brand | BOJACK |
| Material | Copper |
| Shape | Round |
Who Should Buy?
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HVAC Professionals
Ideal for HVAC technicians needing reliable capacitors for air conditioning and heating systems maintenance and repair.
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DIY Enthusiasts
Perfect for home improvement projects, enabling DIYers to easily replace faulty motor or fan capacitors.
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Motor Repair Shops
Beneficial for repair shops specializing in motor and fan devices, increasing efficiency and operational reliability.
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Low-Voltage Applications
Not suitable for low-voltage devices or circuits that operate below the required voltage rating.
Product Description
BOJACK 40 uF 370V 450V AC CBB65 Motor and Fan Starting Round Capacitor 40 MFD 10000AFC
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the purpose of the BOJACK 40 uF 370V 450V AC CBB65 Capacitor?
Answer: The BOJACK 40 uF capacitor is designed for starting motors and fans in various electrical applications. It provides an initial boost of energy, allowing motors to reach their operational speed efficiently. This capacitor is critical in applications such as air conditioning units, pumps, and other machinery where high starting torque is necessary. It ensures optimal performance and efficiency, contributing to the longevity of the motor by minimizing stress during startup. -
Question:
How do I determine if the BOJACK 40 uF capacitor is compatible with my motor?
Answer: To determine compatibility, check the specifications of your motor against the capacitor’s ratings. The voltage rating (370V or 450V) must meet or exceed the voltage of your motor, and the capacitance (40 uF) should match what is required for motor startup. This information is usually found on the motor’s nameplate. Using the right capacitor prevents potential damage and ensures efficient operation, which is vital in applications like HVAC systems and industrial motors. -
Question:
What are the signs of a failing capacitor like the BOJACK 40 uF?
Answer: A failing capacitor may exhibit symptoms such as reduced performance in the motor, abnormal noises, or failure to start. Additionally, physical signs like bulging, leaking, or discoloration may be observed. These indicators suggest that the capacitor is struggling to provide the necessary voltage boost, which can lead to increased strain on the motor. Monitoring these symptoms can help you replace the capacitor before complete failure occurs, ensuring consistent operation in devices such as fans and compressors. -
Question:
Can I use the BOJACK 40 uF capacitor for both single-phase and three-phase motors?
Answer: The BOJACK 40 uF capacitor is primarily designed for single-phase motor applications. It provides the necessary capacitance to create a phase shift that allows the motor to start efficiently. While three-phase motors typically do not require capacitors for starting, they can occasionally use capacitors for power factor correction. Always refer to the motor’s specifications to ensure correct usage, so you maintain optimal performance in applications such as residential air conditioning and pumps. -
Question:
Is there a specific way to install the BOJACK 40 uF capacitor?
Answer: When installing the BOJACK 40 uF capacitor, ensure that the power supply is turned off to avoid electrical shock. Follow the wiring diagram provided with the motor to connect the terminals of the capacitor correctly. Typically, the capacitor will have marked terminals (+ and -) to guide you. Proper installation is essential for the capacitor to function effectively and to prevent potential damage to the motor. Always consult technical manuals for specific instructions related to the application. -
Question:
What applications can the BOJACK 40 uF capacitor be used for?
Answer: The BOJACK 40 uF capacitor is versatile and can be used for various applications, including air conditioners, refrigeration units, and fan motors. It is particularly useful in any scenario where a motor needs an extra jolt of power at startup. By providing reliable performance in these devices, it helps to ensure smoother operation and enhances the efficiency of temperature control systems in both residential and commercial settings. -
Question:
What maintenance is required for a capacitor like the BOJACK 40 uF?
Answer: Capacitors like the BOJACK 40 uF generally require minimal maintenance; however, regular inspections are beneficial. Check for physical damage, such as bulging or leaking, and verify the connections are secure. Ensure that the surrounding environment is clean and free from moisture, as these factors can affect performance. Keeping the capacitor in good condition prolongs its lifespan and ensures reliable operation of connected devices, particularly in high-demand situations like HVAC systems. -
Question:
What is the difference between a run capacitor and a start capacitor?
Answer: The BOJACK 40 uF capacitor is a start capacitor, designed to provide a brief energy boost to start the motor. In contrast, run capacitors operate continuously to improve efficiency during the motor's normal operation. Start capacitors have a higher capacitance value and are engaged for a short duration, while run capacitors have lower capacitance and work throughout the motor's operation cycle. Understanding this difference is crucial for selecting the appropriate capacitor for your application. -
Question:
How does a capacitor affect motor efficiency?
Answer: A capacitor like the BOJACK 40 uF enhances motor efficiency by improving the power factor during startup. By providing the necessary phase shift in electrical energy, it allows the motor to reach operational speed more quickly and reduces the overall energy consumption. Improved efficiency means less strain on the motor, leading to increased operational lifespan and reduced electricity costs. This is particularly beneficial in applications such as industrial machinery where efficiency is paramount. -
Question:
Where can I buy the BOJACK 40 uF 370V 450V AC CBB65 Motor and Fan Starting Round Capacitor?
Answer: You can conveniently purchase the BOJACK 40 uF 370V 450V AC CBB65 Motor and Fan Starting Round Capacitor from Ubuy in Isle of Man. Ubuy provides a reliable shopping experience with a great selection of electrical components, ensuring you receive quality products for your needs. Whether you are a DIY enthusiast or a professional, Ubuy’s easy interface makes it simple to find the right capacitor for your motor applications.
BOJACK Capacitors Editorial Review
The BOJACK 40 uF capacitor is a great replacement option for air conditioning condenser units. It has a 370V-450V AC voltage rating and 10000AFC capacity. A retired professional AC tech found it to be an excellent replacement for his condenser fan motor. The product arrived on time and was recommended by the customer. However, one customer noted that the product they received was not what was pictured and that the capacitor did not have the C-S-R writing stamp on it.
Customer Reviews & Ratings
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Pros
- Good replacement option for air conditioning condenser units
- 370V-450V AC voltage rating and 10000AFC capacity
- Arrived on time
Cons
- Product received was not as pictured
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23 July 2026 · via Trustpilot
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23 July 2026 · via Trustpilot
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Features & Benefits
- Direct replacement for many air conditioners and heat pumps
- Small in size, lightweight, heat resisting, and anti-explosion
- Capacitance: 40μF with capacitance tolerance: ±5%
- Rated voltage: 370V / 450VAC with rated frequency: 50 / 60Hz
- Tangent of loss angle: ≤0.002 (100Hz) with voltage between poles: 2Un 60s
- Engineered for safety 10000 AFC Anti Explosion Pressure Switch
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