Cross section of  the  conductor

 mm2

construer of the cores:

 (Core ×the diameter of each core)

                  mm

2×1

2×1.13

2×1.5

2×1.38

2×2.5

2×1.78

2×4

2×2.25

2×6

2×2.76

3×1.5

3×1.38

3×2.5

3×1.78

3×4

3×2.25

3×6

3×2.76

Cross section of  the  conductor

 mm2

construer of the cores:        

 (Core ×the construer of each core)

mm

2×0.3

2×0.15×16

2×0.5

2×0.15×28

2×0.75

2×0.15×42

2×1

2×0.20×32

2×1.5

2×0.20×48

2×2.5

2×0.20×77

2×4

2×0.20×128