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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
4.5 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 4
great dog toy
Color: Blue
My dog loves it. It's really crunky. nicely made.
only 4 stars because of packaging, careful if opening plastic bag with scissors, really stuffed in a very small bag.
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Reviewed in the United States on March 14, 2026
★★★★★ 5
My Yorkie’s new favorite toy
Color: Orange
This octopus toy was an instant hit with my Yorkie! The size is perfect for a small dog, and he loves carrying it around the house and tossing it in the air. I really appreciate that it has no stuffing, which means less mess if he gets a little too enthusiastic with his playtime.
The material feels durable, and the toy has held up well to daily play. It’s soft enough for cuddling but sturdy enough for tugging and chewing. The squeakers keep him entertained and engaged, and he always gets excited when I bring it out.
Overall, this is a fun, well-made toy that keeps my Yorkie happy and occupied. I would definitely buy it again.
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Reviewed in the United States on June 14, 2026
★★★★★ 3
Octopus dog toy
Color: Blue
My chihuahua loved it but didn’t last very long. Not very durable and was very small. He was able to get the plastic material out fairly quickly.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Great!
Color: Orange
Great toy for 8 week corgi puppy! Super cute and well made.
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Reviewed in the United States on November 5, 2025
★★★★★ 5
Tasha's favorite toy
Color: Blue
A little smaller than expected, but my puppy loves it! We've only had it for a few days, but it seems like it will hold up well.
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Reviewed in the United States on November 9, 2025