Temperature monitoring relay Pt100/1000 KTY83/84, NTC 3 sensors, 2 threshold values digitally adjustable -50 °C to 500 °C 24 – 240 V AC/DC 2 x 1 CO + 1 NO, width 45 mm screw terminal !!!phased-out product!!! the preferred successor is 3RS2600-1BW30+3RS2900-1AW30