45+10 uF ±5% 45/10 MFD 370/440 VAC Dual Run Start Round Capacitor

45+10 uF ±5% 45/10 MFD 370/440 VAC Dual Run Start Round Capacitor

Key Features

• Capacitance Rating: 45/10 Microfarads (MFD/uF)
• Voltage Rating: 370/440 Volts AC
• Capacitance Tolerance: ±5%
• Frequency: 50/60 Hz
• Shape: Round
• Terminals: 3 (FAN, HERM, C)
• Operating Temperature: -40°C to +70°C (-40°F to +158°F)
• Case Material: Aluminum
• Dimensions (Typical): 2.0 in. Diameter x 3.9 in. Height (50 mm x 100 mm)

Replaces / Cross-Reference Part Numbers

• Replaces any round capacitor with matching 45+10 MFD and 370V or 440V specifications.
• JARD 12872

Compatibility & Fitment

• Dual run capacitor for operating a compressor motor and a fan motor simultaneously.
• Suitable for use in air conditioning units, heat pumps, condenser fan motors, and compressors.
• Designed for continuous duty in single-phase and three-phase motor applications.
• Dual voltage rating allows for use as a replacement in both 370 VAC and 440 VAC systems.

When to Replace

• The connected motor hums but does not start.
• Fan or compressor runs intermittently or fails to start.
• Capacitor casing is physically swollen, cracked, or leaking oil.
• Capacitance measurement is outside the rated tolerance when tested with a multimeter.

Installation Tips

• Disconnect all electrical power to the equipment before servicing.
• Safely discharge the old capacitor by shorting its terminals with an insulated-handle tool.
• Note or photograph the wire connections to the FAN, HERM, and C terminals before removal.
• Ensure the replacement capacitor's MFD (uF) rating matches the original. The voltage rating must be equal to or greater than the original.
• Confirm the physical dimensions (diameter and height) for proper fit within the mounting bracket.