MAIN CHARACTERISTICS range of product BC IMPREGO product or component type DRY TYPE TRANSFORMER network type AC type of installation INDOOR COMPLEMETARY CHARACTERISTICS type of cooling AN AIR NATURAL rated power 63 KVA network frequency 50 60 HZ thermal class CLASS H phase description 3 PHASES primary voltage 400 V isolation level PRIMARY 1.1 KV [Ui] rated insulation voltage PRIMARY CIRCUIT 1.1 KV AC secondary voltage OFF LOAD 400 V vector group DYN11 tapping link range + - 5 PT total number of steps 2 temperature rise 125 K WINDING impedance voltage 4.5 PC no-load losses 480 W load losses 1950 W operating altitude < 1000 M winding material ALUMINIUM temperature class H insulation material IMPREGNATED LV mounting mode FIXED IP degree of protection IP21 IK degree of protection IK07 colour code RAL 9003 product weight 255 KG height 901 mm width 590 MM length 761 MM sound power level 65 DB AT 1 M