4mm 3 Core PVC SWA XLPE Armoured Cable 100m Reel

Professional-Grade Armoured Cable for Underground, Outdoor & Industrial Power Distribution

Engineered for the toughest electrical challenges, the 4mm 3 Core PVC SWA XLPE Armoured Cable combines exceptional mechanical protection with reliable power transmission across demanding environments. Used for underground systems, cable networks, power networks, outdoor and indoor applications, and cable ducting, this cable delivers the durability professionals demand in high-stress installations.

Advanced Multi-Layer Protection

The cable's robust construction features galvanised steel wires applied helically in a single layer for multicore cables, which reduce any risk of the cable getting pinched or damaged; the steel is used to protect the armoured cable. Thermosetting insulation offers higher insulation resistance values, increased mechanical protection and resistance to chemical corrosion and water, making it ideal for moisture-rich environments.

Superior Electrical & Thermal Performance

Contemporary designs frequently use cross-linked XLPE insulation, resulting in high-performance steel wire armoured XLPE cable variants that operate continuously at 90°C with excellent thermal stability. XLPE insulation allows for higher operating temperatures and greater efficiency, making it ideal for high-load applications. The 4mm² conductor carries a current rating of 36A, sufficient for outdoor lighting, garden power systems, and small sub-mains circuits.

Direct Burial & Underground Installation Ready

SWA Cables are heavy, which makes them extremely difficult to bend; therefore they are most suited to underground cabling or fixed to outdoor walls using cable cleats. Steel wire armour provides mechanical protection, which means the cable can withstand higher stresses, be buried directly and used in external or underground projects. This eliminates the need for conduit in many applications, reducing installation costs and complexity.

Versatile Domestic & Commercial Applications

Perfect for outdoor lighting, small sub-mains, and garden power supplies, as well as motor feeders, control circuits, switchgear connections, and auxiliary power systems. This 20% weight reduction makes 4mm significantly easier to handle and route solo on residential projects compared to larger sizes, improving installation efficiency for contractors and electricians.

UK Standards Compliance & Safety

It is certified to meet BS5467 and IEC 60502 standards, ensuring compliance with UK wiring regulations for fixed installations. The conductors are classified as Class 2 plain stranded copper, conforming to BS EN 60228:2005 standards, providing reliable conductivity and long-term performance. The armouring is normally connected to earth and can sometimes be used as the circuit protective conductor ("earth wire") for the equipment supplied by cable.

Why Choose This Cable

The armour provides superior tensile strength, allowing the cable to endure pulling forces during installation and minor ground movement post-burial. Unlike standard unarmoured cables, this cable resists rodent damage, mechanical cutting, crushing, and environmental stress—delivering typically designed to last more than 30 years. The 100m reel format offers excellent value and convenience for larger projects, storage installations, and future expansions without wasteful overpurchasing.