thermistor motor protection relay device for warning and tripping 22.5 mm enclosure spring-loaded 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 isolation test/RESET button wire-break monitoring short-circuit monitoring non-volatile 2 separate PTC sensor circuits