Supco SHL517 Plenum Limit Switch L220-40F

The Supco SHL517 Plenum Limit Switch is a temperature control switch with a rating for monitoring heat conditions in HVAC systems. It operates by responding to temperature changes in the chamber area and assists in regulating system operation when preset conditions occur. The assembly is installed in furnaces, air handlers, and related heating equipment where airflow and temperature control are required. Featuring an L220-40F rating, it assists with safety monitoring and maintains proper performance of applications. Its operation supports controlled operation by coordinating temperature responses within the heating system.