Thermistor motor protection relay Device for warning and switching-off 22.5 mm enclosure Spring-type 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 galvanic isolation Test/reset button Wire break monitoring Short circuit monitoring non-volatile 2 separate PTC sensor circuits