Supco SHL513 Plenum Limit Switch L170-40F

The Supco SHL513 Plenum Limit Switch is a control part that monitors airflow conditions and assists in regulating operation by sensing heat levels in air handling sections within HVAC systems. The component is used in furnaces, air handlers, and heating equipment where plenum temperature is required. It features an L170-40F limit setting for detecting elevated temperatures and signaling system controls when adjustment is needed. Installed in the plenum area, this assembly assists with maintaining safe performance by providing temperature feedback during operation. Its operation supports system management, and assists in maintaining heating cycle in commercial and residential applications.