
Trane SFCAP40D75440R Capacitor
The Trane SFCAP40D75440R is a heavy-duty dual run capacitor engineered for demanding HVACR motor applications. This 40/7.5 MFD 440V component stabilizes the electrical phase shift required for the efficient operation of both the compressor and the outdoor fan motor. Built with a round can aluminum housing and 1/4" quick-connect terminals, it is designed for a direct drop-in fit in American Standard and Trane residential condensing units. This HVAC replacement part is rated for 440 volts but is fully backward compatible with 370V systems, offering increased dielectric strength and thermal resistance. It features metallized polypropylene film technology and is 10,000 AFC protected, ensuring internal safety during potential fault conditions. For contractors, using this ServiceFirst OEM capacitor ensures correct microfarad tolerance and meets the specific ESR (Equivalent Series Resistance) requirements of high-efficiency heat pumps and air conditioners, preventing premature motor winding failure and nuisance tripping.
Key Benefits- Dual capacitance (40+7.5 MFD) supports both high-torque compressor starts and consistent fan motor cooling.
- 440V rating provides superior voltage surge protection compared to standard 370V alternatives.
- OEM-spec tolerance ensures precise electrical output, maintaining system energy efficiency and power factor.
- Non-PCB construction and 10,000 AFC internal safety disconnect protect against container rupture.
- Environmental resilience with a temperature operating range from -40°C to +70°C for reliable performance in extreme conditions.
Can I use a 440V capacitor if my old part was 370V?
Yes. In HVAC applications, you can always upgrade to a higher voltage rating like this 440V dual capacitor, as it provides a thicker dielectric barrier, but you must never use a lower voltage rating than originally specified.
What does the 40/7.5 MFD rating signify?
The 40 MFD (microfarad) side is dedicated to the compressor circuit (HERM terminal), while the 7.5 MFD side handles the outdoor condenser fan motor (FAN terminal). Both share a common (C) connection.
How do I know if the SFCAP40D75440R is failing?
Typical indicators include a "bulged" or swollen top, leaking oil, or a motor that hums but fails to start. Testing with a multimeter for microfarad (µF) drift beyond +/- 5% is the standard diagnostic procedure for technicians.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $21.74
-65%$21.74
$7.61Trane SFCAP40D75440R Capacitor
The Trane SFCAP40D75440R is a heavy-duty dual run capacitor engineered for demanding HVACR motor applications. This 40/7.5 MFD 440V component stabilizes the electrical phase shift required for the efficient operation of both the compressor and the outdoor fan motor. Built with a round can aluminum housing and 1/4" quick-connect terminals, it is designed for a direct drop-in fit in American Standard and Trane residential condensing units. This HVAC replacement part is rated for 440 volts but is fully backward compatible with 370V systems, offering increased dielectric strength and thermal resistance. It features metallized polypropylene film technology and is 10,000 AFC protected, ensuring internal safety during potential fault conditions. For contractors, using this ServiceFirst OEM capacitor ensures correct microfarad tolerance and meets the specific ESR (Equivalent Series Resistance) requirements of high-efficiency heat pumps and air conditioners, preventing premature motor winding failure and nuisance tripping.
Key Benefits- Dual capacitance (40+7.5 MFD) supports both high-torque compressor starts and consistent fan motor cooling.
- 440V rating provides superior voltage surge protection compared to standard 370V alternatives.
- OEM-spec tolerance ensures precise electrical output, maintaining system energy efficiency and power factor.
- Non-PCB construction and 10,000 AFC internal safety disconnect protect against container rupture.
- Environmental resilience with a temperature operating range from -40°C to +70°C for reliable performance in extreme conditions.
Can I use a 440V capacitor if my old part was 370V?
Yes. In HVAC applications, you can always upgrade to a higher voltage rating like this 440V dual capacitor, as it provides a thicker dielectric barrier, but you must never use a lower voltage rating than originally specified.
What does the 40/7.5 MFD rating signify?
The 40 MFD (microfarad) side is dedicated to the compressor circuit (HERM terminal), while the 7.5 MFD side handles the outdoor condenser fan motor (FAN terminal). Both share a common (C) connection.
How do I know if the SFCAP40D75440R is failing?
Typical indicators include a "bulged" or swollen top, leaking oil, or a motor that hums but fails to start. Testing with a multimeter for microfarad (µF) drift beyond +/- 5% is the standard diagnostic procedure for technicians.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Description
The Trane SFCAP40D75440R is a heavy-duty dual run capacitor engineered for demanding HVACR motor applications. This 40/7.5 MFD 440V component stabilizes the electrical phase shift required for the efficient operation of both the compressor and the outdoor fan motor. Built with a round can aluminum housing and 1/4" quick-connect terminals, it is designed for a direct drop-in fit in American Standard and Trane residential condensing units. This HVAC replacement part is rated for 440 volts but is fully backward compatible with 370V systems, offering increased dielectric strength and thermal resistance. It features metallized polypropylene film technology and is 10,000 AFC protected, ensuring internal safety during potential fault conditions. For contractors, using this ServiceFirst OEM capacitor ensures correct microfarad tolerance and meets the specific ESR (Equivalent Series Resistance) requirements of high-efficiency heat pumps and air conditioners, preventing premature motor winding failure and nuisance tripping.
Key Benefits- Dual capacitance (40+7.5 MFD) supports both high-torque compressor starts and consistent fan motor cooling.
- 440V rating provides superior voltage surge protection compared to standard 370V alternatives.
- OEM-spec tolerance ensures precise electrical output, maintaining system energy efficiency and power factor.
- Non-PCB construction and 10,000 AFC internal safety disconnect protect against container rupture.
- Environmental resilience with a temperature operating range from -40°C to +70°C for reliable performance in extreme conditions.
Can I use a 440V capacitor if my old part was 370V?
Yes. In HVAC applications, you can always upgrade to a higher voltage rating like this 440V dual capacitor, as it provides a thicker dielectric barrier, but you must never use a lower voltage rating than originally specified.
What does the 40/7.5 MFD rating signify?
The 40 MFD (microfarad) side is dedicated to the compressor circuit (HERM terminal), while the 7.5 MFD side handles the outdoor condenser fan motor (FAN terminal). Both share a common (C) connection.
How do I know if the SFCAP40D75440R is failing?
Typical indicators include a "bulged" or swollen top, leaking oil, or a motor that hums but fails to start. Testing with a multimeter for microfarad (µF) drift beyond +/- 5% is the standard diagnostic procedure for technicians.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












