Series: H630 Model: HND251H Automatic circuit breaker type: Molded case (MCCB) Number of poles: 4P Nominal flow (In): 250 A Nominal operating voltage (Ue): 400 V AC Nominal insulation voltage (Ui): 800 V Nominal impulse withstand voltage (Uimp): 8 kV Nominal limiting voltage (Icu): 50 kA at 400 V AC Nominal working life (Ics): 50 kA at 400 V AC Frequency: 50/60 Hz Vicoristan category: A Sputter type: Electronic LSI Trim adjustment (Ir): 0.4 - 1 x In (100 - 250 A). mitten strum (Ii): 1.5 - 12 x In Function I²t for short-circuit current: Increasing/Warming (ON/OFF) Mechanical wear resistance: 10000 cycles Electrical wear resistance: 4000 cycles Bracelet connected conductors (max.): 185 mm² Connection type: Screw terminals Mounting type: Mounting panel Operating temperature range: -25°C ... +70°C Saving temperature range: -35°C ... +85°C Step zakhistu (front panel): IP40 Step zakhistu (from terminals): IP20 Overall dimensions (WxHxD): 140 x 257 x 105 mm Weight: 3.8 kg Congestion class: 3 Maximum installation height: 2000 m without derating