Parameters: Parameter Value / Description Frame Size (Iu) 250 A Rated Current (In) 250 A (Long-time protection setting Ir is adjustable, e.g., 0.4 - 1.0 x In). Number of Poles 3 Tripping Unit Type Intelligent Electronic Micrologic MA (With embedded communication). Communication Protocol Modbus RTU over RS-485 serial bus. Rated Operational Voltage (Ue) 400 V AC (3-phase) Rated Insulation Voltage (Ui) 690 V Rated Ultimate Breaking Capacity (Icu) 50 kA at 400V AC (IEC 60947-2) [Specific level (e.g., N, H) to be confirmed by catalog]. Rated Service Breaking Capacity (Ics) 100% of Icu (IEC 60947-2 Category B). Protection Functions L - Long-time delay (Adjustable Ir, tr), S - Short-time delay (Adjustable Isd, tsd), I - Instantaneous (Adjustable Ii). Ground fault (G) protection is typically an optional add-on. Measurement & Monitoring (via Modbus) Real-time: Phase currents (IL1, IL2, IL3), Voltage (L-L, L-N), Frequency, Power (kW, kVAR, kVA), Power Factor, Energy: (kWh, kVARh imported/exported), Demand current, Alarms (overload, imbalance). Standard IEC 60947-2 Mounting Fixed mounting on a dedicated base. Connection Front connection (screw clamp terminals for busbar or cable lugs). Width Approx. 135 mm (4.5 modules).