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Description
540-648 uF MFD 110-125 VAC Round Start Capacitor ±20% - Fits OEM Single Phase Motor, Heat Pump - 2 Pack540 648 uF MFD 110 125 VAC Run Round Start Capacitor Key Features Capacitance: 540 648 Microfarad Voltage Rating: 110 125 VAC Frequency: 50 60 Hz Operating Temperature: 40C to +65C ( 40F to +149F) Shape: Round Case Material: Moisture resistant plastic Terminals: 1 4 inch male quick connect Dimensions (Typical): 1. 75 in Diameter x 3. 38 in Height Dielectric: Non polarized aluminum electrolytic Replaces Cross Reference Part Numbers Serves as a
540-648 uF/MFD 110-125 VAC Run Round Start Capacitor
Key Features
- Capacitance: 540-648 Microfarad
- Voltage Rating: 110-125 VAC
- Frequency: 50/60 Hz
- Operating Temperature: -40°C to +65°C (-40°F to +149°F)
- Shape: Round
- Case Material: Moisture-resistant plastic
- Terminals: 1/4 inch male quick-connect
- Dimensions (Typical): 1.75 in Diameter x 3.38 in Height
- Dielectric: Non-polarized aluminum electrolytic
Replaces / Cross-Reference Part Numbers
- Serves as a universal replacement for any start capacitor with matching capacitance and voltage ratings.
- Common type designation: CD60
- Example Part Number: 091A540B125CE7A
Compatibility & Fitment
- Designed for intermittent duty in AC single-phase motor starting circuits.
- Used in appliances, HVAC systems, well pumps, air compressors, and other electric motor applications requiring a starting torque boost.
- Fit is determined by matching electrical specifications and physical dimensions.
When to Replace
- Motor hums but fails to start or struggles to start.
- Start-up is slow or delayed.
- Circuit breaker trips when the motor attempts to start.
- Capacitor case is visibly swollen, bulging, or leaking.
Installation Tips
- Disconnect all electrical power to the unit before servicing.
- Safely discharge the existing capacitor by shorting the terminals with an insulated-handle screwdriver or appropriate discharge tool.
- Verify that the MFD/uF and VAC ratings of the new capacitor match the specifications of the original part.
- Note the wire connections before disconnecting the old capacitor to ensure correct polarity-free reattachment.
- Secure the new capacitor in the mounting bracket to prevent vibration.
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
4.7 ★★★★★
Based on 2417 reviews
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Product Reviews
★★★★★ 5
Dogs love balls
Color: Orange
Most dogs love to play with balls. This is a ball.
It squeaks and can handle a lot of strong chewing. Quite durable and a good size for medium and up sized dogs. (Honestly even smaller dogs would have fun with this).
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Good quality
Color: Green and Purple
Good quality and last long. Is loud wheen squeeks
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Reviewed in the United States on May 16, 2026
★★★★★ 4
Heavy duty for sure
Color: Purple
Heavy duty toy. This ball has some weight to it! I have a smaller laber doodle that thinks she's a German Shepard so no toy is too big or heavy for her. She's been chewing on this for months but you'd never know it. The squeaker is even hard for me to activate with my hands. She hits it in the right spot every now and again and gets excited about it. Great if your not crazy about hearing a squeaker squeaking non stop!
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Reviewed in the United States on May 10, 2026
★★★★★ 5
All dog sizes can enjoy this ball!
Color: Orange
This is a terrific dog ball! Our Pittie can't tear it apart on day 2 which is unusual! Also, its big enough that he can't swallow it but not so huge that our mini Doodle can't enjoy it too! We have more than one of these to keep our pups busy!
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Reviewed in the United States on June 7, 2026
★★★★★ 5
Great quality
Color: Purple, Color: Purple
My dog loves to chew and this toy is indestructible! She loves it!
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Reviewed in the United States on June 10, 2026