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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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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
4.0 ★★★★★
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Product Reviews
★★★★★ 4
Genuine parts that keep my S1 Pro running like new
Fit & Quality:
Everything fit perfectly on my Eufy Omni S1 Pro — the rollers snapped right in, and the filters matched the originals exactly. You can tell these are genuine Eufy parts, not knockoffs.
Performance:
After swapping the brushes and mop roller, my vacuum immediately started cleaning better again. Suction improved, and it picked up fine dust I hadn’t noticed before.
Ease of Use:
Installation took less than ten minutes. Everything comes sealed and labeled clearly, which makes it simple to replace parts without guessing.
Value:
It’s a little pricey compared to third-party kits, but the quality and compatibility are worth the extra few bucks.
Verdict:
Solid replacement set that restores performance to like-new.
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Reviewed in the United States on November 2, 2025
★★★★★ 5
Great aftermarket substitute items
Great quality and fit
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Reviewed in the United States on December 16, 2024
★★★★★ 5
Must have along with the Eufy S1 Pro...
A very nice addition to an already great product.
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Reviewed in the United States on April 29, 2025
★★★★★ 5
Good quality
Good quality replacement parts
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Reviewed in the United States on October 1, 2024
★★★★★ 5
Supplies
I haven't use any of them yet but looks good
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Reviewed in the United States on September 17, 2024