Technical Parameters Parameter Specification / Value Standard Compliance IEC/EN 61643-11, IEC 61643-31, IEC 60099-4 Protection Classification Type 1 + Type 2 Combined (Class I + II) System Configuration 690 V AC, 3P+N+PE (TN-S, IT, TT systems compatible) Maximum Continuous Voltage (Uc) 460 V AC (L-N) / 800 V AC (L-L) Lightning Impulse Current (Iimp) 10/350 µs 30 kA (per mode, all poles) Nominal Discharge Current (In) 8/20 µs 57 kA (per mode) Maximum Discharge Current (Imax) 8/20 µs 100 kA (per mode) Voltage Protection Level (Up) @ In ≤ 3.2 kV (Line-Neutral) Response Time < 20 ns (primary clamping stage) Short-Circuit Withstand Capacity 65 kA RMS (1 second) Recommended Backup Protection 250A-315A gL/gG fuse or equivalent MCCB (specific ratings in installation manual) Connection Terminals Line/Neutral: 50-150 mm² Earth/PE: 70-150 mm² (copper or aluminum) Auxiliary Contacts 2 changeover contacts (NO/NC) for comprehensive remote monitoring Housing Protection IP20 / NEMA 1 (for enclosure installation) Operating Temperature Range -40°C to +85°C (full performance) Altitude Rating Up to 4000 m without derating Status Indication Multi-stage visual (green/yellow/red) + remote contact signaling + optional LED indicators Mounting Reinforced DIN-rail (35/45 mm) or direct panel mounting with vibration dampeners Dimensions (H×W×D) ~ 390 × 125 × 95 mm (confirm with official datasheet) Weight Approximately 4.5 kg Model Interpretation PSTX: Premium surge protection series 570: Discharge capacity platform (57 kA In) 690: System voltage class 70: Generation/configuration code