Specifications General Product Type: Surge Protective Device (SPD) Model: IPRU 3P+N 20 kA Number of Poles: 4 (three phases + neutral) Surge Protection Class: Type 2 (distribution level surge protection) Mounting: DIN‑rail mountable Electrical Ratings Nominal Discharge Current (In): Rated for 20 kA per mode (8/20 µs) Maximum Discharge Current (Imax): Capable of handling up to 20 kA transient surge currents Rated Operating Voltage (Ue): Suitable for low‑voltage three‑phase AC systems (e.g., ~230/400 V AC) Maximum Continuous Operating Voltage (Uc): Designed for continuous operation at system voltage level Protection Technology: Metal‑Oxide Varistor (MOV) based surge suppression elements Protection Performance Modes of Protection: Line‑to‑Neutral (L‑N) Line‑to‑Earth (L‑PE) Neutral‑to‑Earth (N‑PE) Response Time: Fast response to transient overvoltage events Voltage Protection Level: Engineered to clamp surge voltages to safe levels to protect downstream equipment Status Indication: Visual indication (e.g., LED) showing operational status or end‑of‑life condition Mechanical & Environmental Housing: Compact modular enclosure suitable for panel mounting Terminals: Screw/clamp terminals for secure conductor connection Installation: Designed for use within electrical distribution panels and service entrances Operating Environment: Indoor low‑voltage distribution installations