Lennox 56W20 - (R46105-001) Limit Switch (STILT), 150°F Actuation, 120°F Reset, Violet Sleeve, 3.18" OAL
Ensure reliable system protection and temperature regulation with the Lennox 56W20 Limit Switch (R46105-001). Designed to safeguard HVAC equipment from overheating, this high-quality limit switch features a STILT-style design with precision-engineered actuation and reset temperatures. It activates at 150°F and automatically resets at 120°F, helping to maintain safe operating conditions by interrupting the electrical circuit when temperatures exceed safe limits.
Key features include a distinctive violet sleeve for easy identification, and a 3.18-inch overall length (OAL) for a snug fit in compatible Lennox systems. This snap-disc, bimetallic switch is engineered for durability, consistent performance, and long-term reliability in demanding residential or light commercial HVAC applications.
Product Features:
- OEM Lennox Part Number: 56W20 / R46105-001
- Type: Limit Switch (STILT)
- Actuation Temperature: 150°F
- Reset Temperature: 120°F
- Sleeve Color: Violet (for identification)
- Overall Length: 3.18 inches
- Provides over-temperature protection for HVAC units
- Easy to install and replace with plug-in terminal design
- Built to meet strict Lennox performance standards
Application:
Commonly used in Lennox gas furnaces and air handlers, this limit switch is critical in maintaining safe operation by shutting off burners or blowers during overheating conditions. Ideal for technicians and contractors performing system maintenance or component replacement.
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Maintain peak system performance and ensure safety—order the Lennox 56W20 limit switch today from Beenimax.com.

