Description
The Trane SFCAP40D125440R is a dual run capacitor engineered to deliver dependable starting and running performance for both the compressor and condenser fan motor in a single compact round housing. Designed as a genuine Trane OEM replacement, this capacitor ensures a precise fit and consistent electrical performance, helping to maintain the efficiency and longevity of your HVAC system.
Key Specifications
- Capacitance: 40/12.5 MFD (microfarads)
- Voltage Rating: 440V AC
- Configuration: Dual run capacitor (compressor + fan motor)
- Housing Style: Round
- OEM Part Number: SFCAP40D125440R
- Brand: Trane
Product Highlights
- Dual-section design supports both the compressor and condenser fan motor in one unit, simplifying installation and reducing parts inventory
- 440V rating provides a safety margin above standard 370V applications, enhancing durability and heat resistance
- Round housing offers easy mounting in a wide variety of equipment configurations
- Genuine Trane OEM replacement ensures compatibility and reliable performance in Trane systems
- Helps maintain proper motor torque and energy efficiency throughout the cooling season
Application
This dual run capacitor is ideal for use in Trane air conditioning and heat pump systems where a combined 40/12.5 MFD, 440V round capacitor is specified. It supports smooth motor startup and continuous operation of both the compressor and condenser fan motor, reducing strain on electrical components and extending equipment life.
Installation Notes
- Always discharge the capacitor before handling to prevent electrical shock
- Verify MFD ratings and voltage match the equipment nameplate before installation
- Consult equipment documentation or a qualified HVAC technician for proper installation procedures







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