Lennox 56W25 Limit Switch 321702-401 and ER402 models to ensure

and ER402 models to ensure a reliable seal

As a direct replacement transformer for legacy part numbers 0130M00152S and 0130M00329

" contributing to component longevity and energy efficiency

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

Slant Design Efficiency: Optimized airflow patterns through the slant coil layout improve dehumidification and cooling capacity

Lennox 56W25 Limit Switch 321702-401 and ER402 models to ensureThe 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