6241B, 6242B and 6243B LSZH cables
to BS7211 are designed for fixed wiring,
socket circuits and lighting circuits
in buildings.
They are suitable for domestic,
commercial and public building
installations where low smoke zero
halogen performance is required.
Typical applications include surface
wiring, conduit systems, trunking systems,
wall-mounted wiring and protected
building wiring routes.
These cables are commonly used in homes,
offices, schools, hospitals, hotels,
public facilities and commercial buildings.
The thermosetting core insulation provides
reliable electrical performance and
thermal stability.
The LSOH / LSZH sheath helps reduce smoke
emission and corrosive gas release
in the event of fire.
6241B, 6242B and 6243B cables include
a circuit protective conductor for
earthing applications.
6242B is commonly used as twin and earth
cable for socket and lighting circuits.
6243B is commonly used where an additional
core is required by the electrical design.
The cable should be selected according to
cable type, number of cores, conductor size,
installation method, sheath colour
and project specification.
- Fine bare copper strands
- Stranding to IEC 60228 CL-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
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
- Working voltage: 300/500 volts
- 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
| AWG (No of Strands/ Strand Diameter) | No. of Cores x Nominal Cross Sectional Area #xmm^2 | 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 | ||||||
| 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 |
KEY FEATURES
- Designed according to BS7211 requirements
- 6241B, 6242B and 6243B cable types
- Thermosetting insulated conductors
- LSOH / LSZH outer sheath
- Low smoke zero halogen performance
- Includes circuit protective conductor
- Suitable for fixed wiring installation
- Suitable for socket and lighting circuits
- Suitable for domestic and commercial buildings
- Suitable for conduit, trunking and protected routes
SELECTION NOTES
Before quotation, please confirm:
- Cable type
- Voltage rating
- Number of cores
- Conductor size
- Cable length
- Sheath colour
- Installation method
- Required standard or project specification
- Packing requirement
- Destination port or delivery address
6241B, 6242B and 6243B cables are commonly
selected for fixed wiring applications
where low smoke zero halogen performance
is required.
They are suitable for building wiring,
socket circuits, lighting circuits and
protected low voltage installations.
For installations requiring mechanical
protection, the cable should be installed
in conduit, trunking or other protected
wiring systems.
RELATED CABLE TYPES
- BS7211 cable
- 6241B cable
- 6242B cable
- 6243B cable
- 6181B cable
- 6182B cable
- 6183B cable
- 6491B cable
- 2491B cable
- LSZH building cable
- Twin and earth cable
- Fixed wiring cable
FAQ
What are 6241B, 6242B and 6243B cables used for?
They are used for fixed wiring,
socket circuits and lighting circuits
in buildings.
They are commonly installed in domestic,
commercial and public building projects.
What standard do these cables follow?
These cables are designed according
to BS7211 requirements.
Are 6241B, 6242B and 6243B cables LSZH?
Yes. These cables use an LSOH / LSZH
outer sheath to help reduce smoke emission
and corrosive gas release in the event of fire.
Do these cables include an earth conductor?
Yes. These cable types include a circuit
protective conductor for earthing applications.
What is 6242B cable?
6242B is commonly used as a twin and earth
LSZH building cable for fixed wiring,
socket circuits and lighting circuits.
What is 6243B cable?
6243B is commonly used where an additional
core is required by the electrical design,
together with a circuit protective conductor.
Are these cables armoured?
No. These are unarmoured building wiring
cables.
Where mechanical protection is required,
they should be installed in conduit,
trunking or other protected wiring systems.
Can BURYCABLE supply 6241B, 6242B
and 6243B cable?
Yes. BURYCABLE can supply 6241B,
6242B and 6243B LSZH cables according
to project cable type, conductor size,
length, sheath colour and packing requirements.
