Supervisory relay, single-function: 1P - one changeover contact. Motor temperature monitoring via connected PTC sensors (max. 6 sensors) or thermal contact. Input - terminals: A1 - A2, relay supply voltage - 230 V AC. Measuring circuits - terminals: T1-T2 - circuit with temperature sensors; reaction value - ? 3.6 kW, return value - ? 1.65kW; terminals: T1-T3 - circuit with thermal contact, measuring voltage T1-T2 - ? 7.5V at R ? 4 kW. It has a fault memory TEST/RESET button. Output: 1P contact - terminals: 11-12-14; AC1 - 5A / 250V. Dimensions: 87 x 35 x 65 mm. Housing - installation module. IP 20.