340-408 uf 110-125VAC ±20% Round Start Capacitor 50/60Hz

340-408 uf 110-125VAC ±20% Round Start Capacitor 50/60Hz

Key Features

• Capacitance: 340-408 µF (MFD)
• Rated Voltage: 110-125 VAC
• Frequency: 50/60 Hz
• Tolerance: ±20%
• Operating Temperature Range: -40°C to +65°C (-40°F to +149°F)
• Shape: Round
• Case Material: Moisture and oil-resistant plastic
• Terminal Type: 1/4 inch male quick-connect

Replaces / Cross-Reference Part Numbers

• Universal replacement for start capacitors with matching specifications.
• Compatible replacement for any brand capacitor rated at 340-408 µF and 110-125 VAC.
• Interchangeable with CD60 type start capacitors.

Compatibility & Fitment

• Designed for the starting circuit of single-phase AC electric motors.
• Commonly used in applications such as:
• Air conditioners
• Air compressors
• Pool and well pumps
• HVAC units
• Other motor-driven equipment

When to Replace

• Motor hums but fails to start or starts slowly.
• Circuit breaker trips upon motor startup.
• Visible signs of damage, such as a bulging case, cracks, or fluid leakage.
• Capacitance measures outside the specified tolerance range when tested with a multimeter.

Installation Tips

• Disconnect all electrical power to the unit before performing installation.
• Safely discharge the existing capacitor by shorting the terminals with a resistor or an insulated tool.
• Verify that the µF (MFD) and VAC ratings of the replacement capacitor match the original part.
• AC start capacitors are non-polarized; wires can be connected to either terminal.
• Ensure all electrical connections are secure.

Compatibility & Fitment