Cable

Professional-Grade Electrical Cables for Australian Trade Professionals

iSupply Electrical stocks a comprehensive range of electrical cables designed to meet the demanding requirements of licensed electricians, contractors, and maintenance professionals across Australia. From residential installations to large-scale commercial and industrial projects, our cable selection delivers reliable performance at competitive wholesale prices.​

Every cable in our range meets Australian Standards including AS/NZS 3000 (Wiring Rules) and the AS/NZS 5000 series, ensuring compliance, safety, and longevity for your electrical installations. Whether you’re wiring new builds, renovating existing properties, or maintaining industrial facilities, iSupply Electrical provides the quality cables your projects demand.​

TPS Cables & SDI Flat

TPS flat cables are the backbone of Australian domestic and commercial electrical installations, commonly used for fixed wiring applications including lighting circuits and power outlets. These cables feature two or more individually insulated conductors with an overall protective sheath, designed to AS/NZS 5000.2 standards. Our TPS SDI Flat and TPS Twin SDI Flat ranges offer enhanced double insulation for applications requiring additional safety protection, ideal for circuits where earth continuity must be maintained through insulation rather than earth conductors.​

Single Core & Building Wire

Single core cables and building wire provide versatile solutions for conduit installations, switchboard wiring, and industrial applications. Available in copper construction with various insulation types including PVC and XLPE (Cross-Linked Polyethylene), these cables offer flexibility in design and installation. Building wire is essential for projects requiring custom routing through protective conduit systems, providing safe electricity transmission in both fixed and flexible configurations. For trade professionals requiring specific lengths, our Buy Per Metre service allows precise cable ordering to minimize waste and manage project costs effectively.​

XLPE Cable Range

Our extensive XLPE cable selection includes XLPE Single Core for high-temperature switchboard and industrial applications, XLPE Multicore for multi-conductor power distribution, and XLPE Mains for underground and direct burial installations requiring superior moisture resistance. Flexible XLPE cables offer enhanced bend radius for installations requiring cable movement or tight routing, while Flexible Multi-Core XLPE combines multiple conductors in a flexible configuration for portable equipment and mobile power applications. XLPE insulation provides continuous operating temperatures up to 90°C with superior chemical and moisture resistance compared to standard PVC cables.​

Orange Circular Cables & SWA

Recognized by their distinctive orange PVC sheathing, circular cables are designed for 240V and 415V applications including portable power, temporary installations, air conditioning, and construction site power distribution. These flexible cables comply with Australian safety standards and are built to withstand the rigors of outdoor use, mobile equipment, and high-movement applications. For applications requiring mechanical protection, Orange Circular SWA (Steel Wire Armoured) cables feature steel wire armouring beneath the outer sheath, providing superior protection against mechanical damage in underground installations, industrial environments, and areas with high impact risk.​

Flexible Welding Cable

Flexible Welding Cable is engineered specifically for arc welding equipment, featuring highly flexible copper conductors and durable rubber insulation that withstands extreme temperatures, oil, and abrasion. These cables deliver reliable current transmission to welding torches and ground connections, maintaining flexibility even in cold conditions while resisting damage from weld splatter and rough handling on industrial job sites.​

Solar Cables

Purpose-built for photovoltaic systems, solar cables feature UV-resistant insulation and copper conductors designed to withstand harsh outdoor conditions and elevated operating temperatures up to 90°C continuous. Compliant with AS/NZS 5033, these cables ensure safe, efficient power transmission from solar panels to inverters and battery systems, critical for renewable energy installations.​

Communication & Data Cables

Beyond power distribution, iSupply Electrical stocks Communication Cables for structured cabling systems, telephone networks, and building management systems. Our data cable range ensures reliable signal transmission for modern building communication and network infrastructure, supporting Cat5e, Cat6, and Cat6a specifications for high-speed data applications.​

Coaxial Cables

Coaxial cables serve specialized applications including security systems, CCTV installations, television antenna connections, and audio/video distribution. These cables feature a central conductor surrounded by insulation and braided shielding, providing superior signal integrity and electromagnetic interference protection for audio-visual and surveillance applications.​

Automotive & Marine Cables

Automotive & Marine Cables are purpose-designed for vehicle electrical systems, boat wiring, and mobile equipment applications. These cables feature flexible tinned copper conductors resistant to vibration, moisture, and corrosion, with insulation rated for temperature extremes and fuel/oil exposure common in automotive and marine environments.​

Speaker & Garden Cable

Speaker Garden Cable combines audio signal transmission with weather-resistant construction, ideal for outdoor audio installations, garden lighting circuits, and landscape electrical systems. The figure-8 configuration simplifies installation while providing reliable connectivity for low-voltage applications in residential and commercial outdoor spaces.​

Cable Selection Considerations

Choosing the right cable involves evaluating multiple factors including current-carrying capacity, voltage drop calculations, installation environment, and compliance with AS/NZS 3008.1.1 cable selection standards. Consider conductor material (copper or aluminum), insulation type (PVC, XLPE, EPR), cable sizing based on load requirements, and environmental conditions such as temperature, moisture exposure, and UV radiation.​

Proper cable sizing prevents overheating, ensures equipment operates at correct voltage levels, and maintains long-term system reliability. Trade professionals should also account for installation method, cable grouping, and derating factors when specifying cables for complex projects.​

FAQ

What types of electrical cables does iSupply Electrical stock?

iSupply Electrical carries a comprehensive range including TPS flat cables (twin and earth), single core building wire, SDI cables (single double insulated), orange circular cables for portable power, solar PV cables, coaxial cables for security and TV systems, and data cables for networking applications. All cables meet Australian Standards AS/NZS 3000 and AS/NZS 5000 series requirements.​

What is the difference between TPS cable and building wire?

TPS (Twin and Earth) cables are pre-assembled with multiple insulated conductors and an overall protective sheath, designed for fixed wiring applications in walls and ceilings. Building wire consists of single insulated conductors installed within protective conduit, providing greater flexibility for custom routing and switchboard applications. TPS offers faster installation for standard residential work, while building wire suits industrial installations requiring conduit protection.​

How do I calculate the correct cable size for my project?

Cable sizing requires determining load current in amperes, considering installation conditions (temperature, cable grouping, installation method), factoring cable length and acceptable voltage drop, and consulting AS/NZS 3008.1.1 current-carrying capacity tables. Undersized cables risk overheating and voltage drop that affects equipment performance, while oversized cables unnecessarily increase material costs. Licensed electricians should account for derating factors including ambient temperature, soil thermal resistivity for buried cables, and grouping with other current-carrying cables.​

Are all electrical cables suitable for outdoor use?

Not all cables are rated for outdoor installation. Orange circular cables and solar cables feature UV-resistant sheathing specifically designed for outdoor and exposed applications. Standard TPS cables and building wire require additional protection when installed outdoors, such as conduit or protective enclosures. Always verify cable specifications against AS/NZS 3000 requirements for the specific installation environment including moisture exposure, UV radiation, temperature extremes, and mechanical stress factors.​

What Australian Standards apply to electrical cable installations?

The primary standards governing cable installations include AS/NZS 3000 (Australian/New Zealand Wiring Rules) covering design, construction and verification of electrical installations, AS/NZS 3008.1.1 for cable selection based on current rating and voltage drop, AS/NZS 5000 series specifying cable construction requirements, and AS/NZS 5033 for solar PV system installations. Licensed electricians must ensure all cable selections and installation methods comply with these standards to meet legal requirements and ensure electrical safety.​

Does iSupply Electrical offer trade accounts for licensed electricians?

Yes, iSupply Electrical provides trade accounts for licensed electricians, electrical contractors, and maintenance professionals. Trade accounts offer wholesale pricing, streamlined ordering for ongoing projects, and access to the full product range at competitive rates. Contact our team to discuss trade account options and verify your professional credentials.​

What is the difference between PVC and XLPE cable insulation?

PVC (Polyvinyl Chloride) insulation is affordable and suitable for general-purpose applications with continuous operating temperatures up to 75°C. XLPE (Cross-Linked Polyethylene) insulation handles higher continuous temperatures up to 90°C, offers superior resistance to chemicals and moisture, and provides better performance for industrial, outdoor, and high-load applications. XLPE cables cost more but deliver enhanced durability and safety margins for demanding electrical installations.​

Can I use orange circular cables for permanent installations?

Orange circular cables are primarily designed for portable power, temporary installations, construction sites, and mobile equipment applications. While they meet Australian safety standards for their intended use, permanent fixed wiring installations typically require TPS cables or building wire installed in conduit according to AS/NZS 3000 requirements. Always consult local wiring rules and installation standards when specifying cables for permanent electrical infrastructure.​

Why Trade Professionals Choose iSupply Electrical

Licensed electricians and contractors partner with iSupply Electrical for reliable access to comprehensive electrical cable ranges at wholesale pricing. Our product selection meets the diverse needs of residential, commercial, and industrial projects, backed by expert customer service and fast Australia-wide shipping. Trade accounts are available for qualified professionals seeking competitive pricing and streamlined ordering for ongoing projects.​

Browse our complete cable range and experience the iSupply Electrical difference—quality products, trade pricing, and service built for Australian electrical professionals.​