540-648 uF MFD 110-125 VAC Round Start Capacitor ±20% - Fits OEM Single Phase Motor, Heat Pump - 2 Pack

540-648 uF MFD 110-125 VAC Round Start Capacitor ±20% - Fits OEM Single Phase Motor, Heat Pump - 2 Pack540 648 uF MFD 110 125 VAC Run Round Start Capacitor Key Features Capacitance: 540 648 Microfarad Voltage Rating: 110 125 VAC Frequency: 50 60 Hz Operating Temperature: 40C to +65C ( 40F to +149F) Shape: Round Case Material: Moisture resistant plastic Terminals: 1 4 inch male quick connect Dimensions (Typical): 1. 75 in Diameter x 3. 38 in Height Dielectric: Non polarized aluminum electrolytic Replaces Cross Reference Part Numbers Serves as a

540-648 uF/MFD 110-125 VAC Run Round Start Capacitor

Key Features

• Capacitance: 540-648 Microfarad
• Voltage Rating: 110-125 VAC
• Frequency: 50/60 Hz
• Operating Temperature: -40°C to +65°C (-40°F to +149°F)
• Shape: Round
• Case Material: Moisture-resistant plastic
• Terminals: 1/4 inch male quick-connect
• Dimensions (Typical): 1.75 in Diameter x 3.38 in Height
• Dielectric: Non-polarized aluminum electrolytic

Replaces / Cross-Reference Part Numbers

• Serves as a universal replacement for any start capacitor with matching capacitance and voltage ratings.
• Common type designation: CD60
• Example Part Number: 091A540B125CE7A

Compatibility & Fitment

• Designed for intermittent duty in AC single-phase motor starting circuits.
• Used in appliances, HVAC systems, well pumps, air compressors, and other electric motor applications requiring a starting torque boost.
• Fit is determined by matching electrical specifications and physical dimensions.

When to Replace

• Motor hums but fails to start or struggles to start.
• Start-up is slow or delayed.
• Circuit breaker trips when the motor attempts to start.
• Capacitor case is visibly swollen, bulging, or leaking.

Installation Tips

• Disconnect all electrical power to the unit before servicing.
• Safely discharge the existing capacitor by shorting the terminals with an insulated-handle screwdriver or appropriate discharge tool.
• Verify that the MFD/uF and VAC ratings of the new capacitor match the specifications of the original part.
• Note the wire connections before disconnecting the old capacitor to ensure correct polarity-free reattachment.
• Secure the new capacitor in the mounting bracket to prevent vibration.