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Description
540-648 uF MFD 110-125 VAC ±20% CD60 Round Start Capacitor - Fits OEM Single Phase Motor, Heat Pump540 648 uF MFD 110 125 VAC Round Start Capacitor Key Features Capacitance: 540 648 microfarads (uF MFD) Voltage Rating: 110 125 Volts AC Frequency: 50 60 Hz Dimensions: 1 13 16 in. Diameter x 4 3 8 in. Height Terminals: 1 4 inch male quick connect Construction: Non polarized aluminum electrolytic Case: Hermetically sealed bakelite case resists oil, dirt, and moisture Duty Cycle: Intermittent, for motor starting applications Replaces Cross Reference
540-648 uF/MFD 110-125 VAC Round Start Capacitor
Key Features
- Capacitance: 540-648 microfarads (uF/MFD)
- Voltage Rating: 110-125 Volts AC
- Frequency: 50/60 Hz
- Dimensions: 1 13/16 in. Diameter x 4 3/8 in. Height
- Terminals: 1/4 inch male quick-connect
- Construction: Non-polarized aluminum electrolytic
- Case: Hermetically sealed bakelite case resists oil, dirt, and moisture
- Duty Cycle: Intermittent, for motor starting applications
Replaces / Cross-Reference Part Numbers
- Packard PMJ540A
- BMI 091A540B125CE7A
- UPC 840899105864
Compatibility & Fitment
- Application: Designed for starting single-phase AC motors
- Common Usage: Air conditioners, refrigeration units, compressors, furnace fan motors, and other motor-driven equipment
- Fits applications requiring a 540-648 MFD capacitor rated for 110V, 115V, or 125V systems
When to Replace
- Motor hums but does not start
- Slow or difficult motor startup
- Circuit breaker trips when the motor attempts to start
- Existing capacitor shows physical damage like bulging, cracking, or leaking fluid
- Capacitance measures outside the rated tolerance when tested with a multimeter
Installation Tips
- Disconnect all electrical power to the unit before servicing.
- Safely discharge the old capacitor using a suitable resistor across the terminals.
- Ensure the microfarad (uF/MFD) rating matches the original capacitor's specification.
- The new capacitor's voltage rating must be equal to or higher than the original.
- As a non-polarized capacitor, wires can be connected to either terminal.
- Secure the capacitor in its 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
4.1 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Recommended by my breeder
Size: Small, Style: Wishbone/Dental
Purchased these two small sized Benebones for my puppy Springer Spaniel. It’s one of her favorite toys and it is well used and well worn. Replaced these with the medium size recently as she’s almost full grown now.
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Reviewed in the United States on June 9, 2026
★★★★★ 5
Dogs love them and long lasting
Size: Large, Style: Wishbone/Dental
My dogs love these chew toys and they have lasted nearly 2 months and they still have plenty of chew left to them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
★★★★★ 5
The only chew toy that has actualy held up...for well over 2 years!
Size: Medium, Style: 4 Pack, Size: Medium, Style: 4 Pack
These things are amazing! They last forever even with dogs that can destroy nearly everything else in mins! I ordered these as a doggie Xmas gift over TWO YEARS AGO, and they are still pretty much fully intact! They chew on them all the time, too!(see pics; that's over two years of steady use!) I only got the one 4 pack, and have 4 dogs, too!
Since making them so well does kind of reduce my ability to buy many more from them, I feel I should at least let people know they really are crazy durable and dogs love them! I will prob buy another 4 pack soon, just so they are easier to find(end up under couches,etc). Def a good buy!!!!
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Built for heavy chewers and actually holds up
Size: Medium, Style: Fishbone/Wishbone
This chew toy is a total win for heavy chewers and has held up really well compared to so many others we’ve tried. It keeps dogs busy for long stretches and they stay genuinely interested in it instead of destroying it in minutes. The shape makes it easy for them to grip and chew comfortably, which adds to how much they use it. The durability is the real standout here, making it one of those rare toys that actually earns a repurchase. The material feels sturdy, it’s easy to clean, and there’s no noticeable odor, which is always a plus.
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Definitely recommend
Size: Large, Style: 4 Pack
My dogs absolutely love these! I bought them at a great price! They have lasted my dogs over a year! I have a full pitbull, pit/lab, pit/boxer, and a pit/mastiff. So needless to say they pass the power jaw test. They look just like the pictures and they are pretty light weight!
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Reviewed in the United States on May 24, 2026
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