Technical Parameters Parameter Specification / Value Standards Compliance IEC/EN 61643-11 Protection Classification Type 1 + Type 2 Combined (Class I + II) System Configuration 400 V AC, 3P+N (TN-S, TT systems) Rated Voltage (Un) 400 V AC (±10%) Maximum Continuous Voltage (Uc) 320 V AC (L-N) / 420 V AC (L-L) Lightning Impulse Current (Iimp) 10/350 µs 25 kA (per mode, all poles) Nominal Discharge Current (In) 8/20 µs 14 kA (per mode) Maximum Discharge Current (Imax) 8/20 µs 30 kA (per mode) Voltage Protection Level (Up) @ In ≤ 2.2 kV (Line-Neutral) Response Time < 100 ns Short-Circuit Withstand Capacity 25 kA RMS (per IEC 61643-11) Recommended Backup Protection 80A-100A gL/gG fuse or equivalent circuit breaker (consult installation manual) Connection Terminals Line/Neutral: 16-70 mm² Earth/PE: 25-70 mm² (copper) Auxiliary Contacts Optional 1 changeover contact (remote signaling) Housing Protection IP20 (for indoor cabinet installation) Operating Temperature -40°C to +80°C Storage Temperature -40°C to +85°C Status Indication Visual window with color-coded flag (green/red) Mounting DIN-rail mountable (35 mm) Dimensions (H×W×D) ~ 288 × 90 × 75 mm (confirm with official datasheet) Weight Approximately 2.8 kg Model Interpretation PSTX: Premium series 142: Product variant (14 kA In) 600: Iimp = 25 kA 70: Generation/configuration code