White-Rodgers 3L02-170 Limit Switch the 40VA rating indicates its

the 40VA rating indicates its capacity

including those from Jard

Optimized Airflow Management: Functions as a primary control to prevent blower lag and minimize heat exchanger stress

this OEM York replacement part requires a physical intervention by a technician once the limit has been tripped

this is an "AUTO" limit switch

White-Rodgers 3L02-170 Limit Switch the 40VA rating indicates itsThe White Rodgers 3L02 170 is a high performance snap disc limit switch engineered for critical safety regulation in furnace and blower applications. Designed as an Open on Rise limit control, this component features a fixed 170F cut out temperature, ensuring your HVAC system shuts down safely when thermal thresholds are exceeded. As a manual reset limit switch, it requires a physical reset once tripped, preventing auto cycling in potentially