Schneider Electric LRD03 Thermal Overload Relay

Schneider Electric LRD03 TeSys Deca thermal overload relay is a compact motor-protection device that interlocks with TeSys contactors to guard small- to mid-size three-phase motors against overload. It supports 690V AC control circuits and a configurable motor current range of 0.25 to 0.4 A. The relay adds reliability with one normally open and one normally closed auxiliary contact (1NO+1NC) for status signaling and control wiring, while secure screw-clamp terminals simplify installation. Classified as Class 10A thermal protection, the LRD03 is designed to mount directly to LC1D TeSys contactors (LC1D09 through LC1D32) for streamlined protection in panel assemblies. This makes it suitable for motor protection in applications such as conveyors, pumps, and fans within industrial equipment where Schneider Electric TeSys protection devices are standard.