DIN 42600-4 E:2008-06 Instrument transformers for 50 Hz, Um 0,72 kV to 52 kV - Part 4: Current Transformers (support-type-insulator) Um = 12 kV - Small design, main dimensions, indoor type
2013DIN 42600-4:2013 Instrument transformers for 50 Hz, U<(Index)m> 0,72 kV to 52 kV - Part 4: Current Transformers (support-type-insulator) U<(Index)m> = 12 kV - Small design, main dimensions, indoor type
1977DIN 42600-4:1977 Instrument transformers for 50 Hz, HSV 0,6 to 52 kV; currenttransformers (support-typ-insulator), HSV 12 kV, small design, main dimensions, indoor type