233-280 uF MFD 110-125 VAC ±20% Round Motor Start Capacitor 50/60 Hz AC Electric Replacement - 2 Pack
Two round 233-280 uF 110-125 VAC motor start capacitors with BlueStars branding.
Single round motor start capacitor 233-280 uF 110-125 VAC with technical specification infographic.
BlueStars 233-280 uF round motor start capacitor showing 3.38 inch height and 2 inch diameter dimensions.
Air conditioner units showing symptoms for motor start capacitor replacement including hard starting and unusual noise.
Single 233-280 uF 110-125 VAC round motor start capacitor in a durable phenolic resin case.
Close-up of 233-280 uF 110-125 VAC round motor start capacitor showing terminal connectors and product label.
Woman relaxing on a couch under an air conditioner with BlueStars DIY repair promotional text.
Two round 233-280 uF 110-125 VAC motor start capacitors with BlueStars branding.
Single round motor start capacitor 233-280 uF 110-125 VAC with technical specification infographic.
BlueStars 233-280 uF round motor start capacitor showing 3.38 inch height and 2 inch diameter dimensions.
Air conditioner units showing symptoms for motor start capacitor replacement including hard starting and unusual noise.
Single 233-280 uF 110-125 VAC round motor start capacitor in a durable phenolic resin case.
Close-up of 233-280 uF 110-125 VAC round motor start capacitor showing terminal connectors and product label.
Woman relaxing on a couch under an air conditioner with BlueStars DIY repair promotional text.
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233-280 uF MFD 110-125 VAC ±20% Round Motor Start Capacitor 50/60 Hz AC Electric Replacement - 2 Pack

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233-280 MFD 110-125 VAC ±20% Volts Round Motor Start Capacitor - Pack of 2

Key Features

  • Capacitance: 233-280 Microfarad (MFD/uF)
  • Voltage Rating: 110-125 VAC
  • Frequency: 50/60 Hz
  • Capacitance Tolerance: ±20%
  • Type: CD60 Motor Start Capacitor
  • Construction: Round, dry, non-polarized electrolytic
  • Case Dimensions: 1-7/16 in. Diameter x 2-3/4 in. Height
  • Quantity: 2 Capacitors

Replaces / Cross-Reference Part Numbers

  • Packard PMJ233
  • Supco CS233-280X110
  • Interchangeable with other capacitors matching the same MFD and VAC ratings.

Compatibility & Fitment

  • Universal fit for single-phase AC electric motors requiring a start capacitor with matching specifications.
  • Used in HVAC units, air conditioners, heat pumps, refrigeration compressors, and other motor-driven equipment.
  • Fitment is determined by matching the capacitance (MFD/uF), voltage (VAC), and physical dimensions of the original part.

When to Replace

  • Motor hums but fails to start or struggles to turn over.
  • Slow or delayed motor startup.
  • Circuit breaker trips when the motor attempts to start.
  • Visible signs of failure on the original capacitor, such as swelling, bulging, or fluid leakage.

Installation Tips

  • Disconnect all electrical power to the equipment before beginning service.
  • Safely discharge the existing capacitor by shorting the terminals with a properly insulated tool.
  • Confirm the MFD and VAC ratings of the new capacitor match the component being replaced.
  • Ensure terminals are clean and connections are secure.
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  • Perfect fit

    Perfect fit

    Universal fit with any brands with the same ratings
  • Premium quality

    Premium quality

    This product adopts a high-quality metalized polypropylene film that provides stable and durable performance
  • Saving solution

    Saving solution

    Enjoy the great feeling when your engine is repaired and works properly like before - BlueStars brings DIY solutions to help you deal with any trouble
  • Simple installation

    Simple installation

    Because the capacitor is a relatively simple part, the installation just takes a few minutes and will save you at least a hundred bucks in labor

FAQ

This capacitor is designed for intermittent duty in AC motor starting circuits. It is commonly used in HVAC systems, air compressors, pool pump motors, and various industrial electric motor applications requiring a 233-280 uF rating at 110-125 VAC.
This unit serves as a direct replacement for numerous industry-standard part numbers, including Aerovox, Dayton 4X064A, MARS 11018, JARD 11918, Global 1018, Packard PMJ233, NTE MSC125V233, Supco CS233-280X110, and BMI 092A233B125AC1A.
If your motor hums but fails to reach full speed, trips the thermal overload, or simply refuses to start, the start capacitor is often the culprit. A physically damaged capacitor—such as one with a bulging top, leaking electrolyte, or a burnt smell—should be replaced immediately.
Yes. As long as the microfarad (uF/MFD) rating of 233-280 and the voltage rating of 110-125 VAC match your original part, this capacitor will function correctly regardless of the manufacturer name printed on the housing.
Before installation, ensure the power supply to the motor is completely disconnected. Because capacitors store an electrical charge, you must safely discharge the old capacitor using a resistor or an insulated screwdriver across the terminals before handling it. Additionally, inspect the motor's centrifugal switch; if the switch is stuck or faulty, it can cause a new capacitor to fail prematurely.
This is a dry, electrolytic, non-polarized capacitor intended for intermittent duty only. It is designed to provide the high torque necessary to start a motor and should be disconnected from the circuit once the motor reaches approximately 75% of its rated speed.