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Industrial Cables Multi-Core Flexible Cables
6241B/6242B/ 6243B to BS 7211
Application and Description
6241B/6242B/ 6243B to BS 7211 cables are suitable for fixed installation particularly for situations in which low
emission smoke and domestic wiring cable for the surface wiring of sockets and lighting where fire, smoke
emission and toxic fumes create a potential threat to life and equipment. Can be installed in fixed installations in
dry or damp premises on walls, boards or trays, in channels or embedded in plaster. Suitable for laying in
conduit or trunking where mechanical protection is required.
Cable Construction
Fine bare copper strands
Stranding to IEC 60228 Class 1 or 2
Thermosetting core insulation type EI5 or GP 8
The core or cores shall be laid parallel with the uninsulated circuit protective conductor
For twin cores, the protective conductor centrally placed between cores in same plane
For 3 cores, the protective conductor centrally placed between black and grey cores in same plane
LSOH sheath, type LTS 2, white
6241B
6242B
6243B
Core Identification
2 cores: brown and blue, or, for 2 × 1.0 and 2 × 1.5 cables, brown and brown
3 cores: brown, black (centre core) and grey
Technical Characteristics
Working voltage: 300/500v
Test voltage: 2000 volts
Flexing bending radius: 15xOverall diameter
Static bending radius: 10xOverall diameter
Flexing temperature: +5º C to +90º C
Short circuit temperature: +250º C
Insulation resistance: 10 MΩxkm
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 thickness of sheath mm |
Nominal overall dimensions | Circuit protective conductor AWG | Nominal Weight kg/km | |
| lower limit mm |
upper limit mm |
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| 6241B | |||||||
| 17 | 1 × 1.0 | 0.7 | 0.9 | 4.1 × 5.2 | 5.0 × 6.3 | 17 | 45 |
| 16 | 1 × 1.5 | 0.7 | 0.9 | 4.4 × 5.4 | 5.3 × 6.6 | 17 | 55 |
| 6242B | |||||||
| 17 | 2 × 1.0 | 0.7 | 0.9 | 4.1 × 7.6 | 5.0 × 9.1 | 17 | 68 |
| 17(7/26) | 2 × 1.0 | 0.7 | 0.9 | 4.2 × 7.8 | 5.1 × 9.4 | 17 | 73 |
| 16 | 2 × 1.5 | 0.7 | 0.9 | 4.4 × 8.1 | 5.3 × 9.7 | 17 | 85 |
| 16(7/24) | 2 × 1.5 | 0.7 | 0.9 | 4.5 × 8.3 | 5.4 × 10 | 17 | 90 |
| 14 | 2 × 2.5 | 0.7 | 1.0 | 4.9 × 9.3 | 6 × 11.2 | 16 | 120 |
| 14(7/22) | 2 × 2.5 | 0.7 | 1.0 | 5.0 × 9.5 | 6.1 × 11.4 | 16 | 125 |
| 12(7/20) | 2 × 4 | 0.7 | 1.0 | 5.5 × 10.4 | 6.7 × 12.6 | 16 | 175 |
| 10(7/18) | 2 × 6 | 0.7 | 1.1 | 6.2 × 12.0 | 7.5 × 14.6 | 14 | 240 |
| 8(7/16) | 2 × 10 | 0.7 | 1.2 | 7.3 × 14.5 | 8.8 × 17.6 | 12(7/20) | 390 |
| 6(7/14) | 2 × 16 | 0.7 | 1.3 | 8.4 × 17.0 | 10.1 × 20.5 | 10(7/18) | 560 |
| 6243B | |||||||
| 17 | 3 × 1.0 | 0.7 | 0.9 | 4.1 × 10 | 5.1 × 12.1 | 17 | 91 |
| 16 | 3 × 1.5 | 0.7 | 0.9 | 4.4 × 10.7 | 5.3 × 12.9 | 17 | 115 |
| 14 | 3 × 2.5 | 0.7 | 1.0 | 4.9 × 12.0 | 6 × 14.6 | 17 | 170 |
| 12(7/20) | 3 × 4 | 0.7 | 1.0 | 5.5 × 14 | 6.7 × 16.9 | 16 | 196 |
| 10(7/18) | 3 × 6 | 0.7 | 1.1 | 6.2 × 16.2 | 7.5 × 19.5 | 14 | 291 |
| 8(7/16) | 3 × 10 | 0.7 | 1.2 | 7.3 × 19.5 | 8.8 × 23.6 | 12(7/20) | 440 |
| 6(7/14) | 3 × 16 | 0.7 | 1.3 | 8.4 × 22.8 | 10.1 × 27.6 | 10(7/18) | 670 |