Voltage rating:

2491B (H05Z-K) 0.5mm2 to 1.0mm2 - 300/500V

6701B (H07Z-K) 1.5mm2 and above - 450/750V

Conductor:

Flexible class 5 copper conductors to BS6360

Insulation:

Type EI5 low smoke, zero halogen, thermosetting insulation

Insulation Colour:

Black, Blue, Green/Yellow, Red, Yellow, White, Violet, Brown, Grey, Orange, Pink

Temperature rating:

+10 to +90°C

Minimum bending radius:

Up to 10mm2 = 3 x overall diameter

10mm2 to 25mm2 = 4 x overall diameter

Standards:

BS7211 H05Z-K H07Z-K Cenelec HD22.9

Nominal Cross Sectional Area
mm2

Nominal Diameter of Strands
mm

Nominal Thickness of Insulation
mm

Nominal Overall Diameter
mm

Nominal Weight
kg/Km

Conductor Resistance aAt 20°C Max.
ohms/Km

Insulation Resistance at 70°C Min.
Mohms/Km

1.5

0.26

0.7

2.9

21

13.3000

0.0100

2.5

0.26

0.8

3.5

33

7.9800

0.0090

4.0

0.31

0.8

4.0

47

4.9500

0.0070

6.0

0.31

0.8

4.6

66

3.3000

0.0060

10.0

0.41

1.0

6.0

111

1.9100

0.0056

16.0

0.41

1.0

7.0

165

1.2100

0.0046

25.0

0.41

1.2

8.7

254

0.7800

0.0044

35.0

0.41

1.2

9.7

343

0.5540

0.0038

50.0

0.41

1.4

12.2

494

0.3860

0.0037

70.0

0.51

1.4

14.0

678

0.2720

0.0032

95.0

0.51

1.6

15.2

895

0.2060

0.0032

120.0

0.51

1.6

17.2

1149

0.1610

0.0029

150.0

0.51

1.8

18.9

1416

0.1290

0.0029

185.0

0.51

2.0

21.0

1724

0.1060

0.0029

240.0

0.51

2.2

25.2

2285

0.0801

0.0028