6491B Conduit Wiring Cable

Application and Description

6491B is equivalent to harmonized code H07Z-R, these cables are designed for fixed wiring purposes in domestic and industrial power/lighting applications. Can be used in trunking or conduit, or may be surface mounted when used for earthing. and generally in areas (such as public and government buildings) where smoke and toxic fumes may cause a threat to life and equipment. The cables produce no corrosive gasses when burnt which is particularly important where electronic equipment is installed.

Cable Construction

  • Fine bare copper strands
  • Strands to IEC 60228 Cl-2
  • Thermosetting core insulation type EI5
  • LSOH - low smoke, zero halogen
BS 7211 Cables

Insulation Colour

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

Technical Characteristics

Working voltage 450/750v
Test voltage 2500 volts
Minimum bending radius up to 10 mm² - 3 x overall diameter
  above 25 mm² - 6 x overall diameter
Flexing temperature +0 ºC to +90 ºC
Short circuit temperature +250 ºC
Insulation resistance 10 MΩ x km
Flame retardant IEC 60332.1
  Smoke density acc. to EN 50268 / IEC 61034
  Corrosiveness of combustion gases acc. to EN 50267-2-2, IEC 60754-2
Flame test flame-retardant acc. to EN 50265-2-1, IEC 60332.1

Cable Parameter

AWG No. of Cores x Nominal Cross Sectional Area Nominal Thickness of Insulation Nominal Overall Diameter Nominal Copper Weight Nominal Weight Minimum Insulation resistance at 90 °C
  # x mm² mm mm kg/km kg/km MΩ·km
16(7/24) 1 x 1.5 0.7 2.7-3.4 14.4 21 0.010
14(7/22) 1 x 2.5 0.8 3.3-4.1 24 33 0.009
12(7/20) 1 x 4 0.8 3.8-4.7 39 49 0.0077
10(7/18) 1 x 6 0.8 4.3-5.4 58 71 0.0065
8(7/16) 1 x 10 1 5.6-7.0 94 114 0.0065
6(7/14) 1 x 16 1 6.4-8.0 154 172 0.0050
4(7/12) 1 x 25 1.2 8.1-10.1 240 265 0.0050
2(7/10) 1 x 35 1.2 9.0-11.3 350 397 0.0043
1(19/13) 1 x 50 1.4 10.6-13.2 480 534 0.0043
2/0(19/11) 1 x 70 1.4 12.1-15.1 672 830 0.0035
3/0(19/10) 1 x 95 1.6 14.1-17.6 912 1054 0.0035
4/0(37/12) 1 x 120 1.6 15.6-19.4 1152 1274 0.0032
300MCM(37/11) 1 x 150 1.8 17.3-21.6 1440 1604 0.0032
350MCM(37/10) 1 x 185 2.0 19.3-24.1 1776 2030 0.0032
500MCM(61/11) 1 x 240 2.2 22.0-27.5 2400 2630 0.0032
-(61/10) 1 x 300 2.4 24.5-30.6 3010 3330 0.0030
-(61/9) 1 x 400 2.6 27.5-34.3 3820 4190 0.0028
-(61/8) 1 x 500 2.8 30.5-38.2 4800 5240 0.0028
-(127/10) 1 x 630 2.8 34.0-42.5 6350 6820 0.0025
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