Specifications Parameter Specification Product Series Acti 9 iPRU Model iPRU 2P 20R Type / Class Type 2 (Class II) – For main distribution or sub-distribution protection. Configuration 2P – Protects both the Line (L) and Neutral (N) conductors in a single-phase system. Nominal Discharge Current (In) 20 kA (8/20 µs wave, per mode) Max. Discharge Current (Imax) 40 kA (8/20 µs wave, per mode) Voltage Protection Level (Up) ≤ 1.5 kV (at In, typical for 230V systems) Rated Voltage (Uc) 275V AC (L-N) for 230V AC single-phase systems (TN-S, TT). Key Feature Integrated Thermal Disconnector ("R" version): • Eliminates the need for an external backup fuse in standard installations. • Automatically disconnects the SPD from the circuit in case of thermal overload due to end-of-life or sustained overvoltage. Status Indication 3-color LED indicator: • Green: Functional • Orange: Pre-alarm / End of Life approaching • Red: Faulty / Disconnected Remote Signaling Built-in changeover contact (NO/NC) for connection to a BMS or alarm panel. Mounting DIN Rail (35 mm) Width 36 mm (2-module width) Standards IEC/EN 61643-11 Operating Temperature -40°C to +80°C