B 53-19 Order no. ÜSB53-19.XX Overvoltage arrester for the measuring cable of conductive electrodes - also for intrinsically safe control circuits EEx ia IIC T6 - mounting directly in Ex area for protection of the field instruments - interruption-free operation Characteristics value : max. 19V AC Ambient temperature : -20...60°C Approval : without Housing / Protection : without / IP20 Identification label (measurement loop) : without Operating Instructions in : EN Number of Operating Instructions : 1