Lennox 56W25 Limit Switch 321702-401 ensuring optimal evaporator efficiency across

ensuring optimal evaporator efficiency across a wide range of refrigerants including R410A

protecting the system from the corrosive effects of moisture and lubricant breakdown

Its rugged NEMA 2 (IP54) die-cast housing allows for flexible mounting in various orientations

Standardized Connections: 3/8" x 5/8" ODF external dimensions simplify field brazing and retrofit installations

compatible with a 24VAC/DC power source and standard building automation controllers

Lennox 56W25 Limit Switch 321702-401 ensuring optimal evaporator efficiency acrossThe Lennox 56W25 Limit Switch is a critical OEM replacement part designed for high limit temperature monitoring in Lennox, Armstrong, and Ducane furnace assemblies. This normally closed safety component features a 3 inch insert length and operates on an automatic reset logic, ensuring the system remains protected without requiring manual intervention after a thermal event. It is engineered with a precise 250F cut out (open) temperature and a 220F cut