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340-408 uF MFD 220-250 VAC ±20% Round Start Capacitor 50/60 Hz - Fits Single-Phase Motors, Gear Motors

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340-408 uF MFD 220-250 VAC ±20% Volts Round Start Capacitor 50/60 Hz AC Electric

Key Features

  • Capacitance: 340-408 Microfarads (uF/MFD)
  • Voltage Rating: 220-250 Volts AC (VAC)
  • Frequency: 50/60 Hertz (Hz)
  • Capacitance Tolerance: ¬±20%
  • Operating Temperature: -40¬∞C to +65¬∞C (-40¬∞F to +149¬∞F)
  • Shape: Round
  • Case Material: Moisture and oil-resistant plastic
  • Terminals: 1/4 inch male quick-disconnect
  • Dimensions: 1.75 in Diameter x 3.38 in Height (44.5 mm x 86 mm)

Replaces / Cross-Reference Part Numbers

  • Universal replacement for any round motor start capacitor with matching capacitance and voltage specifications.
  • Commonly designated as a CD60 type capacitor.

Compatibility & Fitment

  • Designed for single-phase AC electric motors that require a start capacitor.
  • Applications include HVAC units, air compressors, well pumps, and various other electric motors.
  • To ensure compatibility, the replacement capacitor's uF/MFD range must match the original part's specification.
  • The voltage rating of this capacitor (220-250 VAC) must be equal to or greater than the voltage rating of the capacitor being replaced.

When to Replace

  • The motor hums but does not start.
  • The motor starts slowly or requires manual assistance to turn over.
  • The circuit breaker trips upon motor startup.
  • The original capacitor shows physical signs of failure such as bulging, cracking, or leaking fluid.

Installation Tips

  • Disconnect all electrical power to the unit before performing installation.
  • Safely discharge the existing capacitor by carefully shorting its terminals with a resistor or an insulated-handle screwdriver.
  • Note the wiring configuration before removing the old capacitor.
  • As a non-polarized AC capacitor, wires can be connected to either terminal.
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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

A failing start capacitor is often indicated by a motor that hums or struggles to start, trips the circuit breaker upon startup, or fails to reach full operating speed. If you notice the capacitor case is bulging, leaking, or shows signs of burn marks, it should be replaced immediately.
This capacitor is a universal-fit component designed for single-phase AC motors operating at 50/60 Hz. It is commonly used in HVAC systems, air compressors, pumps, and gear motors. Ensure your motor's original capacitor matches the 340-408 uF (MFD) rating and the 220-250 VAC voltage requirement.
The uF (microfarad) or MFD rating indicates the electrical storage capacity of the capacitor. This unit is rated for a range of 340-408 uF. It is critical to match this range; using a capacitor with a significantly different uF rating can prevent the motor from starting or cause permanent damage to the motor windings.
Installation is generally straightforward for those with basic electrical experience. You will need a screwdriver to access the capacitor housing and insulated needle-nose pliers to remove and attach the spade terminals. The process typically takes 15-30 minutes. Always ensure the power to the equipment is disconnected before beginning.
Yes. Capacitors store electrical energy even after the power is turned off. Before touching the terminals, you must discharge the capacitor by placing an insulated screwdriver across the terminals to create a short circuit. Failure to discharge the capacitor can result in a dangerous electrical shock.
No, this is a non-polarized AC start capacitor. It can be installed in either orientation. Simply ensure the spade connectors are pushed firmly onto the terminals to ensure a solid electrical connection.