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PostHeaderIcon Flat Twin & Earth Flat Three core & Earth LSF 6242B & 6243B

Flat Twin & Earth Flat Three core & Earth LSF 6242B & 6243B
2491B/6701B H05ZK/H07ZK Flexible Cable BS7211


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 clipped to surface, on trays or in free air where mechanical damage would not be an issue. Suitable for laying in conduit or trunking where mechanical protection is required.


EN 50268
BS EN 50267-2-1
EN 50267
EN 50265
IEC 60332


Plain copper conductors to BS EN 60228:2005 (previously BS6360)
Class 1 solid: 1.5mm² and 2.5mm²
Class 2 stranded: 4.0mm², 6.0mm² and 10.0mm²
Class 2 stranded compacted: 16.0mm²

Circuit Protection Conductor (Earth)

Class 1 solid plain copper conductor: 1.0mm², 1.5mm², 2.5mm², 4mm² and 6mm²
Class 2 stranded plain copper conductor: 10mm² and 16mm²


XLPE (Cross-linked Polyethylene)


LSZH (Low Smoke Zero Halogen)

Sheath Colour


Voltage Rating


Temperature Rating

Operating Temperature: -25°C to 90°C

Minimum Bending Radius

15 x overall diameter

Core Identification

2 Cores: Blue, Brown + Plain
3 Cores: Brown, Black, Grey + Plain

Sizes and dimensions

Flat Twin and Earth