[Lifetime Warranty] 40+5 uF MFD 370/440 VAC Round Dual Run Capacitor Dual Run Circular Start Capacitor - Compatible with Air Conditioner, Heat Pump

40+5 MFD uF 370 or 440 Volt VAC Round Dual Run Capacitor

Key Features

• Capacitance: 40 + 5 Microfarad (MFD)
• Voltage Rating: 370V or 440V AC
• Tolerance: +/- 5%
• Frequency: 50 / 60 Hz
• Operating Temperature: -40°C to +70°C (-40°F to +158°F)
• Construction: Round aluminum case
• Terminals: 3-terminal configuration (C, HERM, FAN)
• Safety Standard: 10,000 AFC fault current protection

Replaces / Cross-Reference Part Numbers

• USA2235
• TRCFD405
• P291-4054RS
• C3405R
• C4405R
• 27L880
• PRCFD405
• HC98JA041

Compatibility & Fitment

• Universal replacement for round dual run capacitors with matching 40/5 MFD capacitance and 370V or 440V ratings.
• A 440V capacitor can replace a 370V capacitor; do not replace a 440V capacitor with a 370V unit.
• Used in air conditioner condensers, heat pumps, and other HVAC systems.
• Physical dimensions are approximately 2.0 - 2.4 inches in diameter and 3.7 - 5.25 inches in height. Verify fitment before purchase.

When to Replace

• Outdoor unit fan does not spin.
• Compressor hums but will not start.
• HVAC system is running but not cooling.
• Visible signs of failure, such as a bulging or leaking capacitor case.
• Capacitance measures outside the specified tolerance when tested with a multimeter.

Installation Tips

• Disconnect all electrical power to the HVAC unit before servicing.
• Discharge the existing capacitor by shorting across the terminals with an insulated-handle screwdriver.
• Photograph or note the wire placement on the C, HERM, and FAN terminals before disconnecting.
• Connect the wires to the corresponding terminals on the new capacitor.
• Secure the new capacitor with the original mounting bracket to prevent vibration.