FS-LB-I Order no. ÜS-F-LB-I.G Overvoltage protection in two-wire technology for the measuring cable of 0/4...20 mA circuits - also for intrinsically safe control circuits EEx ia IIC T6 - mounting directly in Ex area for protection of the field instruments - easy mounting in the free cable entry on the field instrument Characteristics values : 12...48V DC; max. 250 mA Ambient temperature : -30...70°C Thread : M20 Iso thread