Specifications General Product Type: Surge Protective Device (SPD) Model / Series: IPRU 3P+N 20 kA Number of Poles: 4 (three phases + neutral) Mounting: DIN‑rail compatible Application: Surge protection in three‑phase low‑voltage distribution systems Surge Protection Ratings Surge Handling Capacity: Rated for 20 kA surge current per mode (8/20 µs waveform) Nominal Discharge Current (In): Defined to support large transient suppression needs Maximum Continuous Operating Voltage (Uc): Suitable for continuous operation at the system’s nominal voltage Protection Technology: Metal‑Oxide Varistor (MOV) based transient suppression elements Electrical Ratings Rated Operating Voltage (Ue): Designed for use on low‑voltage AC distribution systems (e.g., ~230/400 V AC) Rated Frequency: Compatible with 50 Hz and 60 Hz systems Protection Modes Covered: Line‑to‑Neutral (L‑N) Line‑to‑Earth (L‑PE) Neutral‑to‑Earth (N‑PE) Protection Performance Response Time: Fast response to transient overvoltages to limit peak voltage stress on downstream equipment Voltage Protection Level: Engineered to clamp surge voltages to levels that protect sensitive loads Status Indication: Visual indicators for operational status and end‑of‑life condition Mechanical & Environmental Housing: Compact module suitable for panelboard integration Terminal Connections: Screw or clamp terminals for secure conductor attachment Installation: Typically installed at service entrance or within branch distribution boards Operating Environment: Designed for standard indoor electrical distribution panels