Supco L225 Limit Switch

The Supco L225 Limit Switch (60T11-610020) is a professional-grade auto reset thermostat designed for high-limit protection in furnace plenums and diverse HVACR applications. Operating on a 3/4 inch bimetal snap disc mechanism, this control features a fixed cut-out temperature of 225°F and a fixed cut-in temperature of 185°F, providing a consistent 40°F differential. The open on rise switch action ensures the circuit is broken when the thermal limit is reached, protecting system components from overheating. Engineered with a rugged welded construction and 1/4 inch quick disconnect terminals, the L225 is rated for 25 Amps at 240VAC, making it a reliable HVAC replacement limit switch for residential and commercial heating systems. Whether you are servicing a forced air furnace or industrial equipment, this bimetal temperature control offers the precision required by technicians for safe, long-term operation.

Key Technical Benefits:

• High Current Capacity: Rated for up to 25A RLA at 120/240VAC to handle demanding blower motors and heating elements.
• Industry Standard Design: Proven 3/4 inch snap disc footprint compatible with most L-series mounting configurations.
• Automatic Reset: Self-resetting bimetal disc eliminates the need for manual intervention once the temperature drops to 185°F.
• Reliable Termination: Standard 1/4 inch spade terminals ensure secure electrical connections and reduced resistance.
• Agency Certified: UL and CSA recognized components for compliance with safety standards in professional installations.

Common Installation Questions:

What is the difference between the Supco L225 and manual reset switches?
The L225 is an auto reset limit switch, meaning it will automatically re-close the circuit once the environment cools to 185°F. Manual reset versions require a physical button press to restore power, which is typical for secondary safety limits.

Can I use this switch in a cooling application?
This specific model features open on rise logic, typically used as a high-limit safety for heating. For cooling applications requiring a fan to turn on when temperatures rise, a "close on rise" (F-series) switch is usually required.

Is the 60T11-610020 a direct cross for other brands?
Yes, this Supco L-series thermostat is a common cross-reference for many White-Rodgers 60T series and various OEM furnace limit controls. Always verify the opening temperature and physical disc size before installation.

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.