Thermistor motor protection relay device for warning and tripping 22.5 mm enclosure screw terminal 1 NO contact + 1 CO contact Us = 24 V-240 V AC/DC manual/auto/remote RESET with ATEX approval 3 LEDs (ready/warning/tripped) safe electrical separation test/RESET button open-circuit monitoring short-circuit monitoring non-volatile 2 separate PTC sensor circuits