Emerson Climate-White Rodgers 3L09-23 3.12" Limit Control Switch Open-170°F Close-150°F

The Emerson Climate-White Rodgers 3L09-23 Limit Switch is a temperature-responsive switching component used to control electrical circuits based on preset thermal limits. It features a 3.12-inch sensing configuration and operates with an open temperature of 170F and a close temperature of 150F allowing controlled circuit interruption and reconnection based on heat variation. This switch is commonly installed in furnaces, air handling units, and burner assemblies where temperature monitoring is required for regulated operation. Within HVAC systems, it is positioned near heat transfer sections to react to temperature changes and support controlled cycling in compatible control setups.