2491B LSZH single core cable to BS7211
and BS EN 50525-3-41 is designed for
panel wiring, conduit wiring and fixed
wiring applications.
It is suitable for control panels,
switchgear, distribution boards,
electrical cabinets, conduit systems
and protected building wiring.
The cable is commonly used where
flexibility is required during installation.
It is also suitable for applications
where low smoke zero halogen performance
is required to reduce smoke emission
and corrosive gas release in the event
of fire.
The thermosetting LSOH insulation provides
reliable electrical performance, good
thermal stability and safer fire behaviour
for indoor wiring systems.
2491B cable is normally used as a
single core insulated wire and should be
installed in conduit, trunking, panels
or other protected wiring systems.
The cable should be selected according to
voltage rating, conductor class,
conductor size, insulation colour,
installation method and project specification.
- 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
Green/Yellow, Black, Blue, Brown, Red, White, Yellow, Grey, Violet,Grey, Orange, Pink
- Working voltage: 300/500v
- Test voltage: 2000v
- Minimum bending radius: 5xOverall diameter
- Flexing temperature: -15o C to +90o C
- Static temperature: -40o C to +90o 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 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 |
KEY FEATURES
- Designed according to BS7211 requirements
- Also related to BS EN 50525-3-41
- 2491B single core cable type
- LSOH / LSZH thermosetting insulation
- Low smoke zero halogen performance
- Suitable for panel wiring
- Suitable for conduit and trunking systems
- Suitable for switchgear and control panels
- Suitable for protected fixed wiring
- Available with different conductor classes
SELECTION NOTES
Before quotation, please confirm:
- Voltage rating
- Conductor size
- Conductor class
- Insulation colour
- Cable length
- Installation method
- Required standard or project specification
- Packing requirement
- Destination port or delivery address
2491B cable is commonly selected for
panel wiring, conduit wiring and fixed
wiring applications where low smoke
zero halogen performance is required.
It is suitable for control panels,
switchgear, distribution boards,
electrical cabinets and protected
building wiring systems.
As a single core insulated cable, it
should be installed in conduit, trunking,
panels or other protected routes according
to project specification.
RELATED CABLE TYPES
- 2491B cable
- BS7211 cable
- BS EN 50525-3-41 cable
- 6491B cable
- 6181B cable
- 6241B cable
- 6242B cable
- 6243B cable
- LSZH building wire
- Panel wiring cable
FAQ
What is 2491B cable used for?
2491B cable is used for panel wiring,
conduit wiring and fixed wiring
applications.
It is commonly installed in switchgear,
control panels, distribution boards,
electrical cabinets and protected
building wiring systems.
What standard does 2491B cable follow?
2491B cable is designed according to
BS7211 requirements and is also related
to BS EN 50525-3-41.
Is 2491B cable LSZH?
Yes. 2491B cable uses LSOH / LSZH
thermosetting insulation to help reduce
smoke emission and corrosive gas release
in the event of fire.
Is 2491B cable sheathed?
No. 2491B is generally a single core
insulated cable.
It is not normally described as a
sheathed power cable.
Is 2491B cable armoured?
No. 2491B is not an armoured cable.
It should be installed in conduit,
trunking, panels or other protected
wiring systems where mechanical protection
is required.
Where is 2491B cable commonly installed?
It is commonly used in control panels,
switchgear, distribution boards,
electrical cabinets, conduit systems
and protected building wiring.
What information is required for quotation?
Please confirm voltage rating,
conductor size, conductor class,
insulation colour, cable length,
installation method and required standard.
Destination port or delivery address
is also required.
Can BURYCABLE supply 2491B cable?
Yes. BURYCABLE can supply 2491B LSZH
single core cables according to project
voltage, conductor size, conductor class,
colour, length and packing requirements.
