The Schneider Electric TeSys Deca LRD15106 is a differential thermal overload relay for motor protection, with a thermal protection adjustment range of 4 to 6 A and a Class 20 tripping characteristic conforming to IEC 60947-4-1. It provides phase-failure sensitivity — tripping at 130 % of Ir on two phases with the third at zero — and a tripping threshold of 1.14 ± 0.06 Ir per IEC 60947-4-1.
Mounts under a contactor, on a plate, or on a DIN rail with specific accessories. Power circuit connections use lugs-ring terminals (torque 2.3 N·m); control circuit uses screw-clamp terminals accepting 1 to 2.5 mm² flexible or solid wire (torque 1.7 N·m).