Schneider LRD350 TeSys Deca Thermal Overload Relay - 37-50 ATeSys LRD thermal overload relay, 50A 690V, thermal setting range 37 50A, tripping class 10A, for protection of 3 phase motors 22kW@400V. Differential device with phase failure and load unbalance detection. It provides a thermal adjustment dial, a manual automatic reset selector, a test selector for the simulation of tripping, reset, and stop buttons, a flag indicator, and 2 auxiliary contacts 1NO+1NC for fault signaling. Settings are protected by a