Schneider Electric LR2D1321 U Thermal Overload Relay

The Schneider Electric LR2D1321 U Thermal Overload Relay is a 3‑pole motor protection device that guards three‑phase motors against overload and phase loss when paired with TeSys D contactors, featuring an adjustable current range of 12–18 A and Class 10A tripping characteristics. It provides motor overload and phase‑failure protection and includes 1 normally open plus 1 normally closed auxiliary contact; mounting options include DIN rail, plate, or direct contactor mounting, with screw-clamp terminals for wiring. The LR2D1321 is compatible with TeSys D LC1D09/12/18/25/32 and LC2D09/12/18/25/32 contactors and serves as an OEM direct replacement, with common replacements such as Schneider Electric LRD21. Operating temperature ranges from -20°C to +60°C.