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Industrial Cables Single Core Fixed Wiring Cable
2491B to BS 7211(New BS EN 50525-3-41)
Application and Description
2491B to BS 7211(New BS EN 50525-3-41) flexible cable are used in panel, conduit and general fixed wiring
applications where there is a requirement for flexibility during installation and in the event of fire, a need to
minimize the risk from smoke and toxic fumes but where circuit integrity is not required. Not suitable for wet or
immersed applications. 2491B is equivalent to harmonized code H05Z-U/H05Z-K.
Cable Construction
Fine bare copper conductor
Solid wire to BS 6360 CL-1 or IEC 60228 CL-1
Stranding to BS 6360 CL-5 or IEC 60228 CL-5
LSOH thermosetting core insulation type EI5
Core Identification
Green/Yellow, Black, Blue, Brown, Red, White, Yellow, Grey, Violet,Grey, Orange, Pink
Technical Characteristics
Working voltage: 300/500v
Test voltage: 2000v
Minimum bending radius: 5xOverall diameter
Minimum bending radius: 5xOverall diameter
Flexing temperature: -15º C to +90º C
Static temperature: -40º C to +90º C
Halogen free acc. to EN 50267-2-1 / IEC 60754-1
Smoke density acc. to EN 50268-2 / IEC 61034-2
Corrosivity of gases acc. to EN 50267-2-2, IEC 60754-2
Flame retardancy acc. to EN 50265-2-1, IEC 60332-1
Cable Parameter
| AWG (No of Strands/ Strand Diameter) |
No. of Cores x Nominal Cross Sectional Area #xmm² |
Nominal Thickness of Insulation mm |
Nominal Overall Diameter mm |
Nominal Copper Weight kg/km | Nominal Weight kg/km |
| 20(solid) | 1 x 0.5 | 0.6 | 2.0 | 4.8 | 8 |
| 18(solid) | 1 x 0.75 | 0.6 | 2.2 | 7.2 | 12 |
| 17(solid) | 1 x 1 | 0.6 | 2.3 | 9.6 | 14 |
| 20(16/32) | 1 x 0.5 | 0.6 | 2.3 | 4.8 | 9 |
| 18(24/32) | 1 x 0.75 | 0.6 | 2.5 | 7.2 | 12.4 |
| 17(32/32) | 1 x 1 | 0.6 | 2.6 | 9.6 | 15 |