Thermal overload relay, 8A/690V, thermal setting range 5.5-8A, tripping class 10A, for protection of 3-phase motors 3kW@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 simulation of a tripping, reset and stop buttons, a flag indicator and 2 auxiliary contacts 1NO+1NC for fault signalling.
