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Description
55 uF MFD 370/440 VAC CBB65 Round Run Start Capacitor - Fits AC Motor Run, Fan Start, Heat Pump55 uF MFD 370 440VAC Round Run Start Capacitor Key Features Capacitance: 55 Microfarad (F MFD) Voltage Rating: 370V or 440V AC Tolerance: 6% Frequency: 50 60 Hz Shape: Round Construction: Oil filled metal can Terminals: in. male quick connect Safety: Contains no Polychlorinated Biphenyls (PCBs) Protection: Features an internal pressure sensitive interrupter Operating Temperature: 40C to +70C Replaces Cross Reference Part Numbers C355R C455R 97F9042
55 uF/MFD 370-440VAC Round Run Start Capacitor
Key Features
- Capacitance: 55 Microfarad (µF/MFD)
- Voltage Rating: 370V or 440V AC
- Tolerance: ±6%
- Frequency: 50/60 Hz
- Shape: Round
- Construction: Oil-filled metal can
- Terminals: ¼ in. male quick-connect
- Safety: Contains no Polychlorinated Biphenyls (PCBs)
- Protection: Features an internal pressure-sensitive interrupter
- Operating Temperature: -40°C to +70°C
Replaces / Cross-Reference Part Numbers
- C355R
- C455R
- 97F9042
- 97F9010
- 12752
Compatibility & Fitment
- Designed for continuous duty in motor run applications.
- Used in air conditioner condensers, heat pumps, furnace blowers, and other single-phase AC motors.
- Compatible with systems specifying either a 370VAC or 440VAC capacitor. A 440VAC capacitor can safely replace a 370VAC unit.
When to Replace
- The motor hums but will not start or struggles to start.
- The fan or compressor fails to turn on.
- Visible signs of damage, such as a swollen or bulging top, cracks, or leaking oil.
- Capacitance measures outside the specified tolerance range when tested with a multimeter.
Installation Tips
- Disconnect all electrical power to the equipment before servicing.
- Safely discharge the existing capacitor by shorting the terminals with a properly insulated tool.
- Confirm that the capacitance (MFD/µF) and voltage ratings are appropriate for your application.
- Ensure terminals are connected securely. Polarity is not a factor for this type of AC capacitor.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Doesn’t squeak but the dogs still love them
Our doggies love them!! Very durable! They do not squeak though
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 5
10/10 for my dogs
Color: A.Orange+Blue+Green
super bouncy and fun for my dogs! they love playing with and tossing them around! hard to see in the water tho!
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Reviewed in the United States on May 29, 2026
★★★★★ 4
Lightweight Balls
Color: A.Orange+Blue+Green
lightweight but solid. Unfortunately, I can't bring to dog park for my dog to play with as the larger dogs will destroy them. Not for dogs that chew through everything.
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Reviewed in the United States on January 31, 2026
★★★★★ 5
Fun ball
It doesn’t last a whole long time, but she loves it! It’s crazy and it drives her playfulness crazy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026
★★★★★ 2
No squeak balls
Color: A.Green+Orange
They don’t squeak. They bounce much either.
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Reviewed in the United States on March 25, 2026