Trane SFCTR1P40A24VSA2L Contactor

The Trane SFCTR1P40A24VSA2L is a field-proven 1-pole contactor engineered for demanding HVACR applications. Built to handle 40 FLA (Full Load Amperage) and featuring a 24VAC coil, this component is the direct OEM replacement for CTR2574. As modern refrigerants become standard, this unit includes an A2L compliant sticker, ensuring your installation meets the latest safety and environmental regulations for low-GWP systems. Designed with heavy-duty screw terminal connections, it provides a secure electrical interface that resists vibration and thermal expansion in high-demand condenser and compressor circuits.

For technicians servicing Trane or American Standard equipment, the SFCTR1P40A24VSA2L offers a drop-in solution that supersedes multiple legacy part numbers, including CTR02574 and CTR1152. Its Definite Purpose (DP) rating is optimized for residential and commercial air conditioning repair, where reliable switching of inductive loads is critical. By maintaining the OEM specification, you ensure correct coil resistance and contact alignment, preventing common issues like premature pitting or coil burnout often found in generic alternatives.

• A2L Refrigerant Ready: Fully compliant with modern safety standards, including necessary labeling for low-flammability systems.
• Higher Amperage Tolerance: Rated for 40 Amp loads, providing a robust buffer for 30A and 35A systems.
• Direct OEM Fit: Eliminates mounting modifications when replacing CTR2574 or other Trane contactors.
• Silver Cadmium Oxide Contacts: Engineered for high-cycle reliability and superior arc suppression.
• Universal 24V Control: Seamlessly integrates with standard residential 24VAC control transformers and thermostats.

Is the SFCTR1P40A24VSA2L compatible with R-454B or R-32 systems?
Yes. This contactor is specifically A2L rated and includes the required compliance labeling for equipment using next-generation refrigerants.

Can I use this 1-pole contactor to replace a 1.5-pole unit?
The SFCTR1P40A24VSA2L carries a 1-pole configuration with a shunt (often referred to as 1.5-pole in trade terminology), providing a continuous power leg for crankcase heaters while switching the main load on the second leg.

Why is there a sticker included with the contactor?
The included A2L compliant sticker is required for safety documentation and field labeling when replacing components in newer systems that use flammable refrigerants.

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.