The Schneider LRD3357C is a TeSys LRD thermal overload relay designed for the reliable protection of AC motors. It provides differential protection against overloads, phase failure, and prolonged starting times, ensuring enhanced motor longevity and operational safety. This model features a manual or automatic reset function, a trip indicator, and test facilities for easy maintenance and diagnostics. Its compact design allows for direct mounting onto TeSys D contactors (LC1D40A to LC1D65A) or independent mounting on a DIN rail, offering versatile installation options for various industrial control applications.