BS 6724 600/1000V four-core cable with stranded copper conductors is intended for fixed low-voltage power distribution in buildings, infrastructure and industrial facilities. XLPE insulation, galvanised steel wire armour and an LSZH outer sheath provide the construction described for this product.
Four cores can serve three phases and a neutral where the circuit design calls for that arrangement. The listed four-core colour code is blue, brown, black and grey. Confirm the function of each core and the protective earthing arrangement for the installation.
Use the four-core parameter table below to compare 1.5-400 mm2 entries, including shaped conductor options. The construction table also lists alternatives across the wider cable family; confirm the insulation grade and final supply design for the selected product. Gallery images include family references and do not define every supplied size or core arrangement.
600/1000V rating with four stranded copper conductors for fixed power circuits.
XLPE insulation and an LSZH sheath for projects specifying low-smoke, halogen-free cable materials.
Galvanised steel wire armour for mechanical protection in the multicore construction.
Nineteen size entries from 4 x 1.5 to 4 x 400 mm2, with strand, thickness, diameter and approximate weight data.
Starred entries identify shaped stranded Class 2 conductors; the original table footnote and separate size entries are retained.
| Conductor | Solid Aluminum or Annealed Copper conductor, circular or shaped, Class 2 to BS EN60228. |
| Insulation | XLPE (Cross-Linked Polyethylene) Type GP 8 conforming to BS 7655-1.3 or type GP 6 conforming to BS 7655-1.2. |
| Colour Code | 1 Core : Brown or Blue |
| 2 Cores : Brown, Blue | |
| 3 Cores : Brown, Black, Grey | |
| 4 Cores : Blue, Brown, Black, Grey | |
| 5 Cores : Green/Yellow, Blue, Brown, Black, Grey | |
| Above 5 Cores : White Cores with black numbers | |
| Bedding | The bedding shall consist of an extruded layer of polymeric material consistent with the operating temperature of the cable. |
| Armour | Single Core : AWA (Aluminum Wire Armour) |
| Multi Core : GSWA (Galvanized Steel Wire Armour) | |
| Outer Sheath | LSOH (Low Smoke Zero Halogen),conforming to BS 7655-6.1. |
| Voltage rating | 600/1000V |
| Temperature rating | 0°C to +90°C |
| Bending radius | 1.5mm² to 16mm² : 6 x overall diameter |
| 25mm² and above : 8 x overall diameter | |
| Flame retardant | BS EN 60332-1-2 ; BS EN 60332-3-24:2009 |
| Halogen free | BS EN 60754-1 |
| Smoke density | BS EN 61034-2 |
| Nominal Cross-sectional Area | Strand Type | Nominal Insulation Thickness | Nominal Bedding Thickness | Nominal Steel Wire Armor dia. | Nominal Sheath Thickness | Approx. Overall Diameter | Aprrox. Weight |
|---|---|---|---|---|---|---|---|
| mm² | No./mm | mm | mm | mm | mm | mm | kg/km |
| 4×1.5 | 7/0.53 | 0.7 | 0.8 | 0.9 | 1.4 | 13.3 | 390 |
| 4×2.5 | 7/0.67 | 0.7 | 0.8 | 0.9 | 1.4 | 15.0 | 470 |
| 4×4 | 7/0.85 | 0.7 | 0.8 | 0.9 | 1.4 | 16.4 | 580 |
| 4×6 | 7/1.04 | 0.7 | 0.8 | 1.25 | 1.5 | 18.7 | 805 |
| 4×10 | 7/1.35 | 0.7 | 0.8 | 1.25 | 1.5 | 21.1 | 1090 |
| 4×16 | 7/1.70 | 0.7 | 0.8 | 1.25 | 1.6 | 23.4 | 1320 |
| 4×25 | 7/2.14 | 0.9 | 1 | 1.6 | 1.7 | 28.9 | 1840 |
| 4x25* | 7/2.14 | 0.9 | 1 | 1.6 | 1.7 | 26.1 | 1840 |
| 4×35 | 7/2.52 | 0.9 | 1 | 1.6 | 1.8 | 31.9 | 2310 |
| 4x35* | 7/2.52 | 0.9 | 1 | 1.6 | 1.8 | 28.6 | 2310 |
| 4×50* | 19/1.78 | 1.0 | 1 | 1.6 | 1.9 | 32.0 | 2970 |
| 4×70* | 19/2.14 | 1.1 | 1.2 | 2.0 | 2.1 | 37.7 | 4240 |
| 4×95* | 19/2.52 | 1.1 | 1.2 | 2.0 | 2.2 | 41.7 | 5400 |
| 4×120* | 37/2.03 | 1.2 | 1.4 | 2.5 | 2.3 | 47.1 | 7000 |
| 4×150* | 37/2.25 | 1.4 | 1.4 | 2.5 | 2.4 | 51.4 | 8350 |
| 4×185* | 37/2.52 | 1.6 | 1.4 | 2.5 | 2.6 | 56.6 | 10130 |
| 4×240* | 61/2.25 | 1.7 | 1.6 | 2.5 | 2.7 | 63.0 | 12840 |
| 4×300* | 61/2.52 | 1.8 | 1.6 | 2.5 | 2.9 | 68.8 | 15530 |
| 4×400* | 61/2.85 | 2 | 1.8 | 3.15 | 3.2 | 78.1 | 19950 |
* Shaped stranded conductor (class 2)
Confirm the 600/1000V system requirement, four-core circuit arrangement and core identification. Agree the protective conductor and armour earthing arrangements with the circuit designer.
Select conductor area using the load, installation method, grouping, ambient conditions, voltage drop and fault requirements. The dimensional table does not provide a current rating for every installation.
Specify the complete size entry, including its star marking where applicable. At 25 and 35 mm2, the ordinary and starred entries have different overall diameters; check the selected version before choosing glands, cleats or terminations.
Confirm the insulation grade, bedding, sheath and environmental requirements against the supply specification. Assess the actual tray, duct, riser or underground route before ordering.
Use the bending-radius guidance shown in the technical table with the selected cable diameter, and confirm handling limits for the installation method.
For a quotation, provide the conductor size and shape, circuit requirements, length, installation environment, accessory requirements, sheath colour and drum or packing requirements.
BS 6724 600/1000V Three Core Stranded Copper Cable
Compare the three-core version where the circuit design requires three insulated conductors.
BS 6724 600/1000V Five Core Stranded Copper Cable
Review the five-core alternative and confirm core functions and identification for the project.
BS 6724 600/1000V Single Core Circular Conductor Cable
Compare the single-core construction and its aluminium wire armour when planning a different circuit layout.
It is intended for fixed 600/1000V power distribution in building, infrastructure and industrial installations requiring the listed XLPE, steel wire armoured and LSZH construction. Suitability depends on the circuit design and installation conditions.
The four-core arrangement can provide three phases and a neutral; it does not add a fifth insulated earth core. The listed colours are blue, brown, black and grey. Confirm the protective earthing design and any proposed use of the armour with the circuit designer.
The original footnote defines the star as a shaped stranded conductor, Class 2. This table includes ordinary and starred entries at 25 and 35 mm2, with different overall diameters. Specify the intended entry and confirm its dimensions when selecting accessories.
The four-core parameter table covers 1.5-400 mm2 and contains 19 entries, including paired ordinary and shaped entries at 25 and 35 mm2. Values shown include strand type, layer thicknesses, steel wire armour diameter, overall cable diameter and approximate weight.
No. The gallery includes multicore cable-family references, a five-core circular-conductor diagram and a four-core shaped-conductor diagram. Use the four-core parameter table and the agreed supply specification to confirm the construction, core colours and dimensions for your order.
The listed flame-retardant, halogen and smoke tests describe the properties shown in the technical information. They do not establish a circuit-integrity duration or a CWZ or PH classification. If the project requires fire survival, request a suitable cable design and supporting test evidence.
Provide the 600/1000V rating, four-core size and conductor shape, required length, circuit and earthing requirements, installation route, environmental conditions, accessories and packing details. Confirm the insulation grade and final construction before ordering.
