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For Your Every Summer RSVP, with Code: SUMMER15
Description
40+10 uF MFD ±5% 370/440 VAC Round Run Start Capacitor - Fits HVAC, Air Conditioners, Heat Pumps40+10 uf 40+10 MFD 370 440VAC 5% Volts Round Run Start Capacitor Key Features Dual capacitance rating: 40 microfarad (uF) for compressor, 10 uF for fan motor Dual voltage rating: 370 or 440 VAC Capacitance tolerance: 5% Operating frequency: 50 60 Hz Case: Round aluminum can with moisture and oil resistance Terminals: Three post design (C, FAN, HERM) with 1 4 inch male quick connects Operating temperature: 40C to 70C ( 40F to 158F) Safety protection:
40+10 uf 40+10 MFD 370-440VAC ±5% Volts Round Run Start Capacitor
Key Features
- Dual capacitance rating: 40 microfarad (uF) for compressor, 10 uF for fan motor
- Dual voltage rating: 370 or 440 VAC
- Capacitance tolerance: ±5%
- Operating frequency: 50/60 Hz
- Case: Round aluminum can with moisture and oil resistance
- Terminals: Three-post design (C, FAN, HERM) with 1/4 inch male quick-connects
- Operating temperature: -40°C to 70°C (-40°F to 158°F)
- Safety protection: 10,000 AFC (Ampere Fault Current) internal protector
Replaces / Cross-Reference Part Numbers
- Replaces any dual round motor run capacitor with matching 40/10 uF and 370V or 440V specifications.
- Check the label of your original capacitor for matching capacitance (e.g., 40/10, 40+10, 40+10 MFD) and voltage ratings.
- Known to replace parts such as USA2232A and 40/10DVR.
Compatibility & Fitment
- Designed for continuous duty in single-phase motor applications.
- Common in residential and light commercial HVAC systems.
- Suitable for use in:
- Air conditioner condensing units
- Heat pumps
- Compressor motors
- Condenser fan motors
- Refrigeration systems
When to Replace
- Compressor or fan motor fails to start or struggles to start.
- A humming sound is audible, but the motor does not engage.
- Capacitor casing is visibly swollen, bulging, cracked, or leaking fluid.
- The unit starts but shuts down after a short period.
- A capacitance test reading is outside the specified ±5% tolerance.
Installation Tips
- Disconnect all electrical power to the main unit before beginning work.
- Safely discharge the existing capacitor by shorting across the terminals with an insulated screwdriver (e.g., C to HERM, then C to FAN).
- Verify the uF (MFD) and voltage ratings of the replacement capacitor match the component being replaced. The voltage rating can be equal to or higher, but never lower.
- Document or photograph the wire connections to each terminal (C, FAN, HERM) before disconnecting.
- Ensure the new capacitor is physically secured with the original mounting bracket.
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
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Product Reviews
★★★★★ 1
Men’s Watch
Color: 3675 Silver Black
Within two weeks of normal wear, the watch quit keeping time and the band broke. Returned for a refund.
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Reviewed in the United States on April 26, 2026
★★★★★ 4
Luxury look and feel
Color: 3675 Silver Grey
Looks good on my wrist, good quality
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Reviewed in the United States on February 28, 2026
★★★★★ 5
N/A
Color: gold green watch for men
great watch and definitely great compliments about the color and brand
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Reviewed in the United States on January 30, 2026
★★★★★ 5
Fancy
Color: silver black watch
Looks fancy to me
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Reviewed in the United States on March 18, 2026
★★★★★ 5
Very good looking and workmanship
Color: silver blue watch for men
Good looking for the price, I ordered AUTOMATIC but shipped ELECTRONIC ; it is okay for daily “practical wear” that will more accurate than the $60K. I was wearing Rolex since high school but now retired I don’t have the extra money and don’t see any reason why to spend the money for just looking or show off.
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Reviewed in the United States on May 14, 2025