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Building Wire

PVC Twin and Earth Cable 6242Y / 6243Y

6242Y Flat Twin + Earth; 6243Y Flat Three Core + Earth

Standard: BS 6004

Rated Voltage: 300/500V

Cable Types: 6242Y Flat Twin + Earth; 6243Y Flat Three Core + Earth

Cable Profile: Flat, non-armoured, PVC insulated and PVC sheathed cable

Conductor: Copper conductors to BS EN 60228

Conductor Class: Solid Class 1 up to and including 2.5 mm²; stranded Class 2 above 2.5 mm²

Insulation: PVC insulation Type TI.1 to BS EN 50363-3

Outer Sheath: PVC sheath Type 6 to BS 7655

Protective Conductor: Uninsulated copper circuit protective conductor, centrally positioned in the cable structure

Protective Conductor Position: 6242Y centrally placed between brown and blue cores; 6243Y centrally placed between black and grey cores

PVC Twin and Earth Cable 6242Y / 6243Y

PVC insulated and sheathed flat cable for domestic and industrial wiring. The 6242Y construction is a flat twin cable with a centrally positioned protective conductor, while 6243Y is a flat three-core cable with a centrally positioned protective conductor. Both versions are designed for installation clipped to flat surfaces or embedded in plaster.

The supplied cross-section image shows a 6242Y 2 × 2.5 mm² + 1E example. The same flat twin-and-earth construction is used across the product range, with the conductor sizes, protective conductor area, dimensions and weight selected according to the ordered cross-section.

6242Y 2 x 2.5 mm² flat twin and earth PVC cable cross-section

6242Y 2 × 2.5 mm² + 1E construction example

Dimensional & Electrical Data

The following values are transcribed from the supplied 6242Y and 6243Y technical parameter document. Minimum and maximum O/D values are shown as width × height in millimetres.

6242Y — Flat Twin + Earth

SizeConductor ClassInsulation Thickness
(mm)
Minimum O/D
(W × H mm)
Maximum O/D
(W × H mm)
Nominal Earth Conductor
(mm²)
Approx. Weight
(kg/km)
Minimum Bending Radius
(mm)
1.0 mm²10.64.0 × 7.24.7 × 8.61.06926
1.5 mm²10.74.4 × 8.25.4 × 9.61.08529
2.5 mm²10.85.2 × 9.86.2 × 11.51.512050
4.0 mm²20.85.6 × 10.57.2 × 13.01.517560
6.0 mm²20.86.4 × 12.58.0 × 15.02.524060
10 mm²21.07.8 × 15.59.6 × 19.04.039080
16 mm²21.09.0 × 18.011.0 × 22.56.056090

6243Y — Flat Three Core + Earth

SizeConductor ClassInsulation Thickness
(mm)
Minimum O/D
(W × H mm)
Maximum O/D
(W × H mm)
Nominal Earth Conductor
(mm²)
Approx. Weight
(kg/km)
Minimum Bending Radius
(mm)
1.0 mm²10.64.0 × 9.04.7 × 11.01.09250
1.5 mm²10.74.4 × 10.55.4 × 12.51.011550
2.5 mm²10.85.2 × 12.56.2 × 14.51.017060
4.0 mm²20.85.8 × 14.57.4 × 18.01.525580
6.0 mm²20.86.4 × 16.58.0 × 20.02.534080
10 mm²21.07.8 × 21.09.6 × 25.54.0550160
16 mm²21.09.0 × 24.511.0 × 29.56.0790180

Reference Current-Carrying Capacity

Conductor Area
(mm²)
Reference Method 100
(A)
Reference Method 101
(A)
Reference Method 102
(A)
Reference Method 103
(A)
Reference Method C
(A)
Reference Method A*
(A)
1.01310.51381611.5
1.5161316102014.5
2.521172113.52720
4.027222717.53726
6.034273523.54732
10453647326444
1657466342.58557

Voltage Drop Reference

Conductor Area
(mm²)
Two-Core Cable DC
(mV/A/m)
Two-Core Cable Single-Phase AC
(mV/A/m)
Three/Four-Core Cable Three-Phase AC
(mV/A/m)
1.0444438
1.5292925
2.5181815
4.011119.5
6.07.37.36.4
104.44.43.8
162.82.82.4
Data source: Dimensional, weight, bending-radius, current-carrying and voltage-drop values above are taken from the supplied BVVB / BVVB-E technical parameter document. Current capacity depends on the installation reference method, ambient temperature and thermal insulation conditions.

Basic Parameters

Product NamePVC Twin and Earth Cable 6242Y / 6243Y
Product Types6242Y Flat Twin + Earth; 6243Y Flat Three Core + Earth
StandardBS 6004
Rated Voltage300/500V
ConductorCopper conductor to BS EN 60228
Conductor ClassSolid Class 1 up to and including 2.5 mm²; stranded Class 2 above 2.5 mm²
InsulationPVC insulation Type TI.1 to BS EN 50363-3
Outer SheathPVC sheath Type 6 to BS 7655
Protective ConductorUninsulated copper circuit protective conductor, centrally positioned in the flat cable construction
Core Identification6242Y: brown and blue power cores; 6243Y: brown, black and grey power cores
Protective Conductor Position6242Y: centrally placed between brown and blue cores; 6243Y: centrally placed between black and grey cores
Maximum Conductor Operating Temperature70°C
Flame PerformanceFlame retardant to BS EN 60332-1-2
ProfileFlat, non-armoured, PVC insulated and PVC sheathed cable with or without protective conductor

Key Features

01

Flat Twin and Earth Profile

6242Y combines two insulated power cores with a centrally positioned protective conductor in a compact flat PVC sheath.

02

Flat Three Core and Earth

6243Y provides three insulated cores with a central protective conductor for matching multi-core wiring layouts.

03

Solid or Stranded Copper

Class 1 solid conductors are used up to 2.5 mm², while larger sizes use Class 2 stranded conductors according to the supplied specification.

04

Central Protective Conductor

The protective conductor is positioned centrally between the insulated cores rather than added as a separate external wire.

05

Flat-Surface Installation

The cable is intended for clipping to flat surfaces or embedding in plaster for domestic and industrial wiring.

06

Size and Color Options

Core size, configuration, sheath marking, cut length and packing can be arranged according to the purchasing specification.

Construction & Standards

6242Y Flat Twin + Earth

Two insulated copper power cores are arranged side by side with an uninsulated copper protective conductor centrally positioned between the brown and blue cores. The assembly is enclosed in a flat PVC sheath.

6243Y Flat Three Core + Earth

Three insulated copper cores are arranged in a flat profile with an uninsulated copper protective conductor centrally positioned between the black and grey cores. The complete assembly is enclosed in a flat PVC sheath.

Applicable Requirements

  • BS 6004
  • BS EN 60228 conductor classes
  • BS EN 50363-3 PVC insulation Type TI.1
  • BS 7655 PVC sheath Type 6
  • BS EN 60332-1-2 flame performance
  • 70°C maximum conductor operating temperature
Product identification note: The supplied source document is titled “Flat Twin & Flat Three Core PVC 6242Y & 6243Y”. The tables on this page use the 6242Y and 6243Y designations requested for this product.

Typical Applications

Domestic WiringFlat-surface wiring and embedded wiring in plaster for domestic installations.
Industrial WiringIndoor fixed wiring for light industrial distribution and equipment connections.
Lighting CircuitsFlat cable routing for lighting circuits where a protective conductor is required.
Surface InstallationSuitable for installation clipped to flat surfaces with the specified bending radius.
Plaster-Embedded RoutingDesigned for concealed installation in plaster where permitted by the applicable wiring rules.
Twin and Three-Core LayoutsAvailable in 6242Y flat twin and 6243Y flat three-core configurations.

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Frequently Asked Questions

As a factory, we offer flexible MOQ depending on the cable type. For standard stock items, MOQ is low; for customized specifications, please contact our sales team for a detailed quote.

Yes, Qiangli cables are manufactured in compliance with international standards such as UL, CE, TUV, and VDE. We provide full test reports and certificates upon request.

Absolutely. We have a dedicated R&D team that can customize cable structure, material, color, and printing to meet your specific project needs.

For standard products, lead time is usually 7-15 days. For large-scale project orders or customized products, it typically ranges from 20 to 30 days.

Yes, we provide free samples for most standard cables. You only need to cover the international courier costs. Contact us to arrange your sample shipment.

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