Power cables
Power Cables from the Event Technology Specialist – Overview
Power cables are the backbone of every stage, every lighting rig and every PA system — and at LTT you find exactly the cables that hold up to the daily demands of professional event work. Whether you need flexible rubber-sheathed cable for mobile setups, CEE power distribution for a festival stage or schuko extension cables for the club, here you connect your equipment safely and reliably.
As your specialist for event technology, LTT focuses on cables that move, get coiled, dragged across walkways and used outdoors — not just static house installation cable. That means rugged H07RN-F rubber cable, sturdy connectors and the right cross-section for every load.
Discover a range built for technicians, DJs, bands, theatres and rental companies who need to deliver impressive results show after show.
What Is a Power Cable? Fundamentals and Function
A power cable is an insulated assembly of one or more conductors (cores) that transmits electrical energy from a source to a consumer. Each core is individually insulated, and an outer sheath bundles and protects the cores against mechanical stress, moisture and abrasion. The conductors themselves are almost always made of copper, prized for its excellent conductivity.
In event technology a clear distinction matters: rigid house installation cable such as NYM-J or NYY-J is designed for permanent installation in walls or underground, whereas flexible H07RN-F rubber cable is built for mobile, frequently-moved deployment on stages and tour productions. The flexible variant uses finely stranded copper conductors and a tough rubber sheath that survives constant coiling and uncoiling.
Power cables also differ from signal cables — DMX, audio or network lines carry control data or audio at low voltage, while power cables carry the mains supply (230 V single-phase or 400 V three-phase). Mixing these up is dangerous, which is why the right cable type, cross-section and connector are essential for every professional setup. If you also need control and audio lines, take a look at our cable and connector range to complete your wiring.
Applications: Where Power Cables Are Used in Event Technology
Power cables are deployed wherever temporary or mobile power is needed for stage, lighting and sound. Typical applications include:
- Stage and PA power supply — feeding amplifier racks, mixing consoles and active speakers from dB Technologies, RCF or LD Systems.
- Lighting rigs and trusses — supplying moving heads, LED bars and dimmer racks mounted on Naxpro-Truss systems.
- Effect devices — connecting fog machines, hazers and pyro controllers from Antari, Eurolite or MagicFX, which often draw high inrush currents.
- Exhibition stands and trade shows — running power across booths and walkways with extension cables and distribution boxes.
- Open-air events and festivals — weatherproof, IP-rated cabling between generators, distros and stage positions.
For lighting and effect setups you will often combine power cables with the matching control wiring. Explore our effect and lighting equipment to see which devices need which power feed, and pair them with the right cable cross-section for a clean, safe installation.
Types and Variants of Power Cables
Power cables come in several variants, each suited to a specific job:
Flexible rubber cable (H07RN-F)
The workhorse of event technology. Its tough rubber sheath and finely stranded copper conductors withstand constant movement, low temperatures and rough handling. Available as 3-core (3G) for single-phase and 5-core (5G) for three-phase 400 V supply.
Schuko extension cables
Ready-made cables with a moulded schuko plug and coupler for fast single-phase connections — ideal for lighting stands, fog machines and small PA setups.
CEE power cables
Cables fitted with blue CEE plugs (16 A/32 A single-phase) or red CEE plugs (16 A/32 A/63 A three-phase) for higher loads and three-phase power distribution.
Powercon and locking connectors
Locking power connectors from Neutrik prevent accidental disconnection on stage and allow daisy-chaining of LED fixtures and active speakers.
Cable drums and reels
Long runs supplied on a cable drum keep wiring tidy and reduce the risk of tangling during load-in and load-out.
House installation cable (NYM, NYY)
Rigid cable such as NYM-J (grey, indoor) and NYY-J (black, underground) for fixed installations, sold per metre or as 50 m/100 m rings.
Comparison: Cable Types and Standards at a Glance
The comparison below shows the key differences between the most common power cable types so you can pick the right one for your application.
For event technology the flexible H07RN-F variant is almost always the right choice, because it tolerates repeated movement and the rough conditions of touring. NYM and NYY remain relevant for fixed installations and permanent venue infrastructure.
Cable Colours and Core Functions Explained
The colour coding of power cable cores follows a Europe-wide standard, and knowing it is essential for safe work. In a modern three-core cable the colours mean:
- Green-yellow: protective earth (PE) — carries fault currents safely to ground and is not normally live.
- Blue: neutral conductor (N) — returns current to the source and closes the circuit.
- Brown, black or grey: live/phase conductor (L1, L2, L3) — carries the supply current and is live.
For three-phase 400 V supply a 5-core cable is used: green-yellow (PE), blue (N) plus brown, black and grey for the three phases L1, L2 and L3. Cooker, oven and high-power CEE connections likewise require a 5-core cable.
In old buildings the coding may differ: the protective earth was sometimes red and the neutral grey. Because of these deviations, never rely on colour alone — always verify with a two-pole voltage tester before working, and leave fixed mains work to a registered electrician.
Cross-Section, Load Capacity and Cable Length for Mobile Power
Choosing the correct cross-section is the single most important technical buying criterion, because an undersized cable overheats and becomes a fire risk. As a rough guide for flexible H07RN-F event cable:
- 1.5 mm²: up to roughly 16 A — suitable for lighting stands, fog machines and smaller loads.
- 2.5 mm²: up to roughly 20 A — for stronger single-phase loads and longer runs.
- 4 mm² and above: for high-power three-phase distribution and long feeds.
Long cable runs cause voltage drop, so for runs beyond 25–50 m you should step up the cross-section to keep voltage stable for sensitive lighting and amplifier loads. Supplying cable on a cable drum or reel keeps long lengths manageable — but always fully unroll a drum under heavy load, because a coiled cable traps heat.
When planning a stage or exhibition stand, calculate the total current draw of all connected devices, add headroom, and match it to both the cross-section and the CEE rating. This prevents tripped breakers during the show and keeps your setup safe.
CEE Power Distribution and Connectors for Stage and PA
CEE connectors are the standard for professional event power because they lock securely and are rated for high currents. The most common ratings are:
- CEE 16 A blue: single-phase 230 V, for distribution boxes and smaller stage feeds.
- CEE 16 A / 32 A red: three-phase 400 V, for dimmer racks, large PA systems and power distros.
- CEE 63 A red: three-phase, for main feeds on large stages and festivals.
A power distribution box (distro) takes one strong CEE feed and breaks it out into multiple protected single-phase or CEE outlets — the heart of any stage power supply. On lighting trusses and active speakers, Powercon locking connectors from Neutrik allow safe daisy-chaining of fixtures without the risk of a plug pulling out mid-show.
For a clean setup, match your CEE cables and distros to the truss layout. Our Naxpro-Truss systems give you fixed mounting points for distribution boxes and cable runs, so your power infrastructure stays tidy and safe throughout the event.
Outdoor Use, IP Rating and On-Site Cable Safety
Open-air shows and festivals expose power cables to rain, dust and foot traffic, so safety and weatherproofing are critical. Key points for outdoor use:
- IP rating: use connectors and distribution boxes with an appropriate IP rating (e.g. IP44 or higher) so they resist splashing water and dust. Keep couplings off the wet ground.
- Rubber sheath: H07RN-F rubber cable tolerates moisture and low temperatures far better than PVC installation cable, making it the right choice for outdoor event power.
- Cable protection: route cables across walkways with cable ramps to prevent trip hazards and crushing damage, and secure runs with cable ties and drops along trusses.
- Safety rules: work on mains connections must be carried out by a qualified electrician, follow the five electrical safety rules, and always test for zero voltage with a two-pole tester before any work.
Proper cable management is not just tidy — it protects your audience, your crew and your expensive equipment. Browse our event accessories for cable ramps, ties and protection that keep your site safe.
Buying Guide: Power Cables for Pros and Beginners
Choosing the right power cable comes down to a few clear questions:
- What is the application? Mobile event use calls for flexible H07RN-F rubber cable; permanent installation uses rigid NYM or NYY cable.
- How much current do you need? Add up the power draw of all connected devices and pick the cross-section accordingly (1.5 mm² for light loads, 2.5 mm² and up for heavier loads).
- Single-phase or three-phase? 3-core cable for 230 V; 5-core cable and CEE connectors for 400 V three-phase distribution.
- Which connector? Schuko for everyday gear, CEE for high loads and distribution, Powercon for locking connections on lighting and PA.
- Indoor or outdoor? For open-air, choose weatherproof, IP-rated connectors.
- How long is the run? Increase the cross-section for long distances to avoid voltage drop.
If you are unsure, the cable markings tell you everything you need: the type code (H07RN-F, NYM, NYY), the core count and the cross-section in mm². As a beginner, start with ready-made schuko extension cables; as a pro, build a system around CEE distros and locking connectors for a flexible, scalable stage power setup.
Brands and Manufacturers for Power Cables
At LTT you find power cables and connectors from established manufacturers that professionals trust for daily touring use. In the connector and cable segment, leading names include:
- Neutrik — the benchmark for locking Powercon power connectors and rugged stage connectors.
- Titanex — renowned for high-quality H07RN-F rubber cable used on tours and festivals worldwide.
- Accu Cable — flexible power and link cables tailored to lighting and DJ setups.
- Seetronic — robust, cost-effective power and signal connectors.
- PCE — professional CEE plugs, sockets and power distribution components.
These brands deliver the durability and safety that event work demands. Alongside them, LTT carries cable management and rigging accessories under its own Riggatec range, so you can equip an entire stage power system from a single source — high-quality branded products built for professional use.
Accessories for Power Cables
The right accessories turn loose cable into a safe, professional power system. Essential add-ons in the LTT range include:
- Cable ramps — protect cables across walkways and prevent trip hazards at events and exhibitions.
- CEE adapters and distribution boxes — convert and split feeds between 16 A, 32 A and 63 A connections.
- Cable ties and Velcro wraps — keep runs tidy and reduce wear from movement.
- Cable drums and reels — store and deploy long lengths without tangling.
- Powercon and schuko couplers — extend or join cables for flexible runs.
- Truss cable drops and clamps — route power neatly along Naxpro-Truss structures.
For a complete setup, combine your power cables with rigging and mounting accessories. Browse our cables, connectors and event accessories to find the matching components, spare connectors and protection gear that make your installation safe and reliable.
Care, Maintenance and Safe Storage of Power Cables
Power cables are a long-term investment, and proper care keeps them safe and extends their lifespan. Follow these maintenance practices:
- Inspect before every use: check the sheath for cuts, the connectors for cracks and the strain reliefs for damage. A damaged sheath means the cable must be repaired by a qualified person or retired.
- Coil correctly: use the over-under technique to avoid twisting and internal conductor damage, which prolongs the life of flexible H07RN-F cable.
- Clean gently: wipe cables with a dry or slightly damp cloth; never use aggressive solvents that attack the rubber sheath.
- Store dry: keep cables coiled and off the floor in a dry, cool place, ideally on a reel or in a flight case.
- Regular testing: under workplace safety rules, electrical equipment must be tested periodically by a qualified person (e.g. PAT testing) — keep a record of inspections for rental and professional use.
Well-maintained cables not only last longer, they keep your crew and your audience safe show after show.
LTT – Your Specialist for Event Technology
When you choose power cables at LTT, you choose more than just cable — you choose a partner with over 25 years of experience in event technology. As a manufacturer with our own production in Germany and a full-service supplier for stage, rigging and show equipment, we know exactly what your cables have to withstand on tour, in the club and on the exhibition floor.
You benefit from fast dispatch from our warehouse in Germany, the 3-year LTT warranty and free shipping from €69, with express delivery available when the show can't wait. As a reliable partner we also serve B2B resellers with wholesale conditions and ship worldwide through our international dealer network.
Round out your setup with our matching ranges: explore our cables, connectors and event accessories and our Naxpro-Truss systems to build a complete, professional stage from a single trusted source.
FAQ – Questions & Answers
The colours of power cables identify the function of each core. In a modern cable, green-yellow is the protective earth (PE), which safely carries fault currents to ground. Blue is the neutral conductor (N), which returns current to the source. Brown, black or grey are the live/phase conductors (L1, L2, L3), which carry the supply and are live. For three-phase 400 V supply, a 5-core cable uses green-yellow, blue plus brown, black and grey. In old buildings the coding may differ, so never rely on colour alone — always verify with a two-pole voltage tester before any work.
The German term "Stromkabel" translates directly to "power cable" in English. A power cable is an insulated assembly of one or more copper conductors used to transmit electrical energy from a source to a consumer. In English-speaking event technology the term covers everything from flexible H07RN-F rubber cable and schuko extension leads to CEE power feeds and locking Powercon connections. It is distinct from signal cables such as DMX or audio lines, which carry control data or low-voltage signals rather than mains power. At LTT you find power cables built specifically for professional stage, lighting and PA use.
The right plug for a power cable depends on the load and the application. For everyday single-phase devices up to around 16 A, a schuko plug is sufficient — ideal for lighting stands, fog machines and small PA setups. For higher single-phase loads or distribution, use a blue CEE plug (16 A/32 A). For three-phase 400 V supply to dimmer racks and large PA systems, use a red CEE plug (16 A/32 A/63 A). On lighting fixtures and active speakers, locking Powercon connectors from Neutrik prevent accidental disconnection on stage. Match the connector rating to your total current draw to stay safe.
A 3x1.5 power cable has three cores with a 1.5 mm² cross-section: protective earth, neutral and one phase. It is rated for single-phase loads up to roughly 16 A, which makes it a common choice for lighting connections, fog machines, smaller PA components and general extension cables in event technology. In the flexible H07RN-F rubber version (often written as 3G1.5), it withstands the constant movement and coiling of mobile stage work. For heavier loads or longer runs you should step up to 2.5 mm² to avoid overheating and voltage drop. Always check the marking and the device's power rating before use.
Ready-made power cables that come with a plug are typically schuko extension cables and CEE leads. A schuko extension cable has a moulded plug at one end and a coupler at the other, ready to connect single-phase devices straight away — perfect for lighting stands and effect machines. CEE cables come fitted with blue (single-phase) or red (three-phase) CEE plugs and couplers for higher loads. Powercon cables are pre-fitted with locking connectors for daisy-chaining fixtures. Cable sold per metre or on a drum, by contrast, usually comes without connectors, so you fit the appropriate plug yourself or have it terminated by a qualified person.
The difference between NYM-J and NYY-J cables lies in where they are designed to be installed. NYM-J is a grey PVC-sheathed installation cable intended for permanent indoor use, such as wiring in dry rooms and walls. NYY-J is a black PVC-sheathed cable built for underground burial and outdoor installation, with a more robust sheath that resists moisture and mechanical stress. Both use solid copper conductors and are rigid, making them unsuitable for mobile event work. For touring, stages and rental, you should instead use flexible H07RN-F rubber cable, which is built for repeated coiling and movement.
To find the right power cable, start with the application: mobile event use calls for flexible H07RN-F rubber cable, while permanent installation uses rigid NYM or NYY cable. Next, calculate the total current draw of all connected devices and choose the cross-section accordingly — 1.5 mm² for light loads, 2.5 mm² and up for heavier loads. Decide between single-phase (3-core, schuko) and three-phase 400 V (5-core, CEE) supply, and pick weatherproof IP-rated connectors for outdoor events. Finally, increase the cross-section for long runs to avoid voltage drop. The cable marking confirms the type, core count and cross-section.
Cable markings such as NYM, NYY and H07RN-F are important because they tell you the cable's construction, intended use and rating at a glance. The type code reveals the sheath material and application: NYM for indoor installation, NYY for underground use and H07RN-F for flexible event cable. Alongside the type code, the marking shows the number of cores and the cross-section in mm², for example 5G2.5. Reading these markings correctly ensures you select a cable that matches the load, the environment and the connector type. Choosing the wrong cable risks overheating, cable fire and unsafe installations, so the markings are a key safety reference.