Category Parameter Specification Application Protected Circuit 2-wire Analog signals (e.g., 4-20 mA loops) Connection In-series with the signal line Electrical Characteristics Nominal Voltage 8 V DC Max. Continuous Operating Voltage Uc 12 V DC Nominal Current ≤ 250 mA Voltage Drop Typically < 1 V Insertion Loss Typically negligible Surge Protection Performance Test Waveform (IEC 61643-21) 1.2/50 μs (Voltage) - 8/20 μs (Current) Nominal Discharge Current (In) 5 kA (8/20 μs) Max. Discharge Current (Imax) 10 kA (8/20 μs) Protection Level (Up) < 25 V (at In = 5 kA, 8/20 μs) General Data Number of Poles / Channels 2 (for series connection in one signal loop) Connection Type Screw terminals Mounting 35 mm DIN Rail Housing Material Plastic Operating Temperature -40 °C to +80 °C Standards / Approvals IEC 61643-21, CE
