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 25 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 temperature rise 125 K WINDING impedance voltage 2.9 PC no-load losses 290 W load losses 620 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 152 KG height 520 MM width 460 MM length 530 MM sound power level 65 DB AT 1 M