Technical Data Parameter Specification / Value Application Standard IEC/EN 61643-11 Protection Type / Class Type 1 + Type 2 Combined (Class I + II) Rated Voltage (Un) 400 V AC, 3P+N (50/60 Hz) Maximum Continuous Operating Voltage (Uc) 420 V AC (Line-Line & Line-Neutral) Impulse Discharge Current (Iimp) 10/350 µs 60 kA (per pole, L/N) - This is the critical Type 1 parameter. Nominal Discharge Current (In) 8/20 µs 70 kA (per pole) Maximum Discharge Current (Imax) 8/20 µs 100 kA (per pole) Voltage Protection Level (Up) at In ≤ 2.5 kV (Line-Neutral) Response Time < 100 ns Short-Circuit Withstand Rating (SCCR) According to IEC 61643-11 Back-up Fuse Recommendation Required. Typically 160 A gL/gG or 200 A fuse per phase (MUST be verified with local regulations and the latest ABB datasheet). Connection Cross-Section Main Terminals: 35 - 95 mm² (copper) Earth Terminal: 50 - 95 mm² (copper) Housing Material Thermoplastic (UL94 V-0) Protection Degree (IP) IP20 (for indoor installation in an appropriate enclosure) Operating Temperature Range -40 °C to +80 °C Status Indication Visual (color flag: green=OK, red=fault) Mounting DIN-rail mountable (35 mm) or direct panel mounting Dimensions (H x W x D) Approx. 288 mm x 90 mm x 75 mm (Please confirm with official datasheet)