Virobnik: Hager Series: H3 Model: HNB161H Device type: Automatic vimikach in a cast case Nominal flow (In): 160 A Number of poles: 4 Overall size: 250 A Rated operating voltage (Icu) at 400/415 V AC: 40 kA Rated operating voltage (Ics) at 400/415 V AC: 40 kA Rated operating voltage (Ue): 400/415 V AC Nominal insulation voltage (Ui): 690 V Nominal impulse vistimulation voltage (Uimp): 8 kV Opener type: Thermomagnetic Thermal protection regulation: Yes Regulation range thermal protection (Ir): 0.8-1 x In (128-160 A) Magnetic protection regulation: Yes Magnetic protection regulation range (Im): 5-10 x In (800-1600 A) Compliance with standards: IEC/EN 60947-2 Electrical Wear resistance: 8000 cycles Mechanical wear resistance: 20000 cycles Protection stage (front panel): IP30 Protection stage (terminal): IP20 Operating temperature range: -25 to +70 °C Temperature range: -40 to +85 °C Installation type: Fixed (fixed) Connection type: Front terminals Width: 140 mm Height: 165 mm Depth: 86 mm