Multicore Cables

Multicore Cables

Leading UK manufacturer of multicore cables

Multicore cables are also commonly referred to as multi-conductor cables or multicore wire & cables. They allow different signals or currents to be carried within one sheath. By combining functions into a single line, they reduce separate runs, cut installation time, and keep wiring organised.

At Custom Designed Cables, we build multicore cables for almost any requirement. That might be a 1.5 mm multicore cable for a control panel, a flexible version for moving machinery, or an armoured multicore cable that can withstand outdoor use. Every build is customised to fit the job.

What is a multicore cable?

A multicore cable contains two or more insulated conductors within a shared jacket. Each conductor (or core) can carry a separate current, signal, or control line.

In practice, this could mean an audio cable running several microphone channels, or an automotive multicore cable that links sensors, lighting, and controls. The design simplifies wiring because one sheath replaces many individual cables. That makes installation quicker and maintenance easier.

Multicore cable types

Multicore cables are available in many forms. The right type depends on the environment, the level of protection needed, and how much flexibility the installation requires.

Flexible multicore cable

These cables are designed for movement. They use fine-stranded copper conductors and tough jackets, which makes them suitable for robotics, automation lines, portable tools, and other moving machinery.

Armoured multicore cable

Where mechanical protection is critical, armoured designs provide strength. Options include galvanised steel wire braid (GSWB) or steel wire armour (SWA). They are often used on construction sites or outdoor installations. Areas where impact is likely.

Multicore audio cable

In recording, broadcasting, studios, and live events, audio multicore cables keep multiple channels together. Shielded pairs prevent interference, while a single trunk line reduces clutter and speeds up set-up.

Automotive multicore cable

Vehicles often rely on multicore looms to connect systems. These cables combine power and control circuits in a compact design. They can be built with lightweight conductors for efficiency, or heat-resistant jackets for engine compartments.

Other sizing options

We can supply many conductor sizes, including 1 mm multicore cable, 1.5 mm multicore cable, and 2.5 mm multicore cable. Larger builds up to 40 mm overall diameter are also available.

Multicore cable construction options

Every project calls for its own balance of performance and protection. CDC offers a wide range of build options to match.

Conductors and sizes

We manufacture cables with any number of cores, from small instrumentation cables to large multicore power cables. Stranded conductors provide flexibility, while solid conductors are chosen for stability in fixed wiring.

Shielding options

To minimise interference, we offer cables with individual shields, overall shields, or both. Foil, braid, or hybrid shields can be specified depending on the level of protection required.

Jacket materials

The jacket protects the cable from heat, chemicals, and mechanical stress. Choices include PVC, PUR, LSZH (Low Smoke Zero Halogen), and other compounds. See our cable jacket materials guide for details on each option.

Identification and printing

For easier installation, cables can be supplied with colour coding, number coding, or printed text on the jacket.

Applications of multicore cables

Because they combine multiple functions in one sheath, multicore cables have a wide range of uses across industries.

Industrial automation and control

Factories and processing plants rely on flexible multicore control cables. They can carry both power and control signals, making them ideal for robotic arms, conveyors, and automated systems.

Audio and broadcast

Sound engineers use multicore audio cables to move many signals at once. Balanced shielding ensures clean transmission, while the combined design makes stage and studio wiring easier to handle.

Automotive wiring

Automotive multicore cables simplify wiring looms by grouping circuits. They improve organisation, helping technicians maintain complex systems.

Instrumentation and measurement

In labs and monitoring facilities, multicore insulated cables support precision work. Shielded cores allow accurate readings with minimal interference.

General electronic equipment

Everyday electronics also use multicore wiring. Household appliances and office machines often rely on grouped conductors to connect different functions efficiently.

Custom multicore cable design

At CDC, every build starts with your specification. We can create a new custom multicore cable or adapt existing cables by combining them in a single sheath. Additional elements such as coaxial, fibre optics, hoses, or strain members can be included where needed.

This flexibility means you receive a cable tailored to your task. That might be a heavy-duty armoured multicore cable for power distribution, or a lightweight flexible version for machinery that never stops moving.

Why choose CDC as your multicore cable manufacturer

CDC has been designing and manufacturing custom cables in the UK for over 20 years, with more than 6,000 unique designs completed to date. We hold ISO 9001:2015 certification and UL/CSA approvals, and all materials are RoHS and REACH compliant.

What you can expect from us:

• UK-based design and build under strict quality standards
• Access to an extensive library of materials and components
• Fast turnaround, even for complex builds
• Free consultation and design advice before you commit

Other multicore cable design options

Multicore cables can also be supplied with extra features to meet special requirements. These options extend performance and make installation easier:

• Any combination of cores or functionality considered
• Use of in-house or quality-assured bought-in components
• Twisted pair, triple, or quad constructions
• Individual or collective shielding
• Multicore cables up to 40 mm in diameter
• Cable printing for identification
• Wide choice of jacketing materials

Multicore cable FAQs

What is the difference between multicore and single core cable?

A single core cable has one conductor, while a multicore cable contains several within the same sheath. Multicore designs save space, speed up installation, and make wiring easier to maintain.

Can multicore cables be customised for specific industries?

Yes. At CDC, we design custom multicore cables for industries including automotive, medical, aerospace, defence, and audio-visual. Each cable is built to the standards and operating conditions of its industry.

What sizes are available for multicore cables?

We manufacture a wide range of sizes, from small signal cables to large power cables. Common requests include 1 mm, 1.5 mm, and 2.5 mm multicore cables, but we can design cables up to 40 mm overall diameter if required.

Do you manufacture armoured multicore cables?

Yes, we supply armoured multicore cables for environments where mechanical protection is essential. Options include steel wire armour (SWA) and galvanised steel wire braid (GSWB), depending on the level of durability required.

What standards do your multicore cables meet?

All our cables are built to ISO 9001:2015 standards and can carry UL and CSA approvals. Materials comply with RoHS and REACH, ensuring suitability for regulated industries and international markets.

Get a quote for custom multicore cables

Need a custom multicore cable for your next project? Send us your specifications and we’ll provide a free consultation and fast quotation.