Specifications (English) 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 (35 mm) for panelboard installation Electrical Ratings Nominal Discharge Current (In): Rated for 20 kA (8/20 µs) per mode Maximum Discharge Current (Imax): Capable of handling transient surge currents up to 20 kA 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 suppression elements for fast surge absorption Protection Performance Modes of Protection: Phase‑to‑Neutral (L‑N) Phase‑to‑Earth (L‑PE) Neutral‑to‑Earth (N‑PE) Response Time: Fast response to transient overvoltage events to protect downstream equipment Voltage Protection Level: Engineered to clamp surge voltages to safe levels within the system Status Indication: Visual indicators for operational status and end‑of‑life condition Mechanical & Environmental Housing: Compact modular enclosure suitable for distribution board mounting Terminal Connections: Screw/clamp terminals for secure conductor attachment Operating Environment: Designed for standard indoor electrical installations Installation Location: Typically installed at service entry or sub‑distribution panels