Schneider Electric LRD04 Thermal Overload Relay

Schneider Electric's TeSys LRD04 thermal overload relay protects motors wired to TeSys LR.D / Deca contactors by monitoring current and opening the control circuit when the running current exceeds its setting, helping prevent motor damage due to overload. This model is rated for up to 690 VAC and covers a precise current range of 0.40 to 0.63 A, ensuring appropriate protection for small to mid-size three-phase motors. It features a 1NO+1NC auxiliary contact for status signaling and control integration, plus screw-clamp terminals for secure, tool-free wiring, making installation reliable in industrial control panels. The LRD04 is classified for a trip class of 10 A, aligning with standard motor protection practices and providing predictable, repeatable response under overload conditions. Designed to integrate with Schneider Electric's TeSys families, it enables motor protection in panel installations.