The Schneider Electric LRN357N is a thermal overload relay from the EasyPact D3N series (also referred to as Easy TeSys Protect) . It is a 3-pole electromechanical relay designed to protect AC motors and electrical circuits against overload, phase failure, and prolonged start-up times . It utilizes a bimetallic strip which heats up and deforms based on the current flow, triggering the control circuit to disconnect the motor when an overload is detected
