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590-708 uF MFD 110-125 VAC ±20% 50/60 Hz CD60 Round Motor Start Capacitor - Fits Pool Pump, Well Pump - 2 Pack

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590-708 MFD uF 110-125VAC ±20% Volts Round Motor Start Capacitor

Key Features

  • Capacitance: 590-708 MFD/uF
  • Voltage Rating: 110-125 VAC
  • Frequency: 50/60 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-connect
  • Dimensions (Diameter x Height): Approximately 46 mm x 85 mm (1.81 in x 3.35 in)

Replaces / Cross-Reference Part Numbers

  • Replaces any start capacitor with a 590-708 MFD/uF capacitance range and a 110V, 115V, or 125V rating.
  • Commonly used as a replacement for CD60 type start capacitors.
  • Verify physical dimensions for proper fit before ordering.

Compatibility & Fitment

  • Designed for intermittent duty in single-phase AC motor starting circuits.
  • Suitable for a wide range of applications including HVAC systems, air compressors, well pumps, refrigeration units, and other electric motors requiring a start capacitor.
  • Compatible with any system that requires a capacitor with matching electrical specifications and physical dimensions.

When to Replace

  • The electric motor hums but fails to start.
  • The motor is slow to start or requires manual assistance to turn.
  • The circuit breaker trips when the motor attempts to start.
  • The existing capacitor shows physical damage such as bulging, cracking, or leaking fluid.

Installation Tips

  • WARNING: Capacitors store an electrical charge. Always disconnect power to the unit before servicing.
  • Safely discharge the existing capacitor by shorting the terminals with an insulated screwdriver.
  • Verify that the MFD/uF range and voltage rating of the new capacitor match the specifications of the original part.
  • Note the wire connections before removing the old capacitor. Reconnect wires to the same terminals on the new unit.
  • Ensure the capacitor is securely mounted in its bracket.

FAQ

If your pool or well pump motor hums but fails to reach full speed, or if the motor trips the breaker immediately upon startup, the capacitor is likely failing. A bulging, leaking, or burnt-smelling capacitor casing is a clear physical sign that the unit has reached the end of its service life.
This unit is a direct replacement for CD60 style capacitors and cross-references with part numbers 092A590B125BD4A, 5X673A, PMJ590A, PMJ590, 11027, 11927, SC0041, MSC125V590, BC-590-S, and BC-590.
No, these capacitors are non-polarized. You can connect the two terminals to your motor wiring without worrying about which wire goes to which terminal.
Installation is generally straightforward and typically takes 15 to 30 minutes. You will primarily need a screwdriver to access the motor housing and a pair of needle-nose pliers to disconnect and reconnect the spade terminals. Always ensure the power is disconnected at the breaker before beginning work.
Before installing the new part, ensure the power supply to the motor is completely shut off. It is also critical to discharge the old capacitor by touching the terminals with an insulated screwdriver, as they can hold a dangerous electrical charge even when the power is off. Inspect the wiring for any signs of heat damage or loose connections before securing the new unit.