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233-280 uF MFD 220-250 VAC ±20% Round Motor Start Capacitor 50/60 Hz AC Electric Replacement

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233-280 mfd 220-250VAC ±20% Volts Round Motor Start Capacitor 50/60 Hz AC Electric

Key Features

  • Capacitance: 233-280 Microfarad (MFD/uF)
  • Voltage Rating: 220-250 Volts AC
  • Frequency: 50/60 Hz
  • Tolerance: ±20%
  • Shape: Round
  • Case Material: Plastic
  • Connection Type: 1/4 inch male quick-connect terminals
  • Operating Temperature Range: -40°C to +65°C (-40°F to +149°F)
  • Dimensions (Dia x H): 46mm x 85mm (1.8 in x 3.35 in)

Replaces / Cross-Reference Part Numbers

  • CPT00728
  • Replaces any round motor start capacitor with the same capacitance and voltage specifications.

Compatibility & Fitment

  • Designed for starting fractional horsepower, single-phase electric motors.
  • Suitable for applications including HVAC systems, air conditioners, refrigeration compressors, pumps, and fans.

When to Replace

  • Motor hums but fails to start.
  • Motor starts slowly or requires manual assistance to start.
  • The original capacitor shows physical damage such as bulging, cracking, or leaking fluid.
  • Capacitance measures outside the specified tolerance range when tested with a multimeter.

Installation Tips

  • Disconnect all electrical power to the equipment before installation.
  • Safely discharge the old capacitor by shorting the terminals with an insulated tool.
  • Verify the MFD and voltage ratings match the original part's specifications.
  • Note the wiring configuration before disconnecting the original capacitor.
Product image
  • 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

A failing start capacitor typically manifests as a motor that hums or buzzes but fails to spin up, or one that struggles to reach full speed. You may also notice the motor tripping the circuit breaker immediately upon startup or overheating due to the inability to overcome initial inertia.
No. This is a dry, electrolytic, non-polarized capacitor designed specifically for intermittent duty in AC motor starting circuits. It is intended only to provide the necessary torque to get the motor moving and should be disconnected by the centrifugal switch once the motor reaches approximately 75% of its rated speed.
You can replace a capacitor with one that has a higher voltage rating (e.g., using a 330V capacitor in place of a 250V one), but you should never use a capacitor with a lower voltage rating than the original. The capacitance (uF/MFD) must match the original specification within the manufacturer's tolerance range.
Always disconnect the power supply to the equipment before beginning work. Because capacitors store electrical energy even when the power is off, you must discharge the old capacitor by placing an insulated screwdriver across the terminals before touching them to prevent a dangerous electrical shock.
No. This is a non-polarized capacitor, meaning it does not have a positive or negative terminal. You can connect the wires to either terminal without affecting the performance of the motor.
The lifespan depends heavily on the frequency of starts and the operating environment. Excessive heat, frequent rapid cycling, and voltage spikes are the primary causes of premature failure. If your motor is starting frequently, ensure the capacitor is kept in a cool, ventilated area to maximize its service life.