Is signal noise killing your machine’s efficiency?
You know the feeling. You install a new cable run for your control system or data line. Everything looks perfect. But the moment you turn the power on, the sensors start acting crazy. You get ghost signals. The data gets corrupted. The machine throws an error code for no reason. It is frustrating. You waste hours checking the software, but the problem is right there in the wire. Cheap cables pick up every bit of electromagnetic noise from the motors next door. That noise stops your production. It costs you money every minute the line is down. You need a cable that doesn’t just carry a signal. You need a cable that protects it. You need the UNITRONIC® LiYCY 7×0.34mm² from LAPP. This is not just a wire. It is a shield for your data. It is built in Germany to stop interference before it starts.
What makes this 7-core cable different?
This cable is a workhorse. It is designed for the real world, not just a lab. The “7×0.34” part tells you exactly what it is. It has 7 separate cores inside. Each core has a cross-section of 0.34mm². That is the sweet spot for many low-frequency data and control signals. It is thick enough to carry power to a small sensor, but thin enough to stay flexible.The most important word here is “Shielded.” Let’s break that down simply. Imagine your signal is a whisper. In a noisy factory, nobody hears a whisper. The shield acts like a soundproof room. We wrap the inner cores in a tinned copper braiding. This metal mesh catches all the electromagnetic noise (EMI) floating around. It catches the noise from VFDs, motors, and welding equipment. Then, it drains that noise safely to the ground. The result? Your signal stays clean. Your data arrives exactly as you sent it. No errors. No downtime. Just smooth operation.
Built to bend, not break
Nobody likes stiff cables. If a cable is too rigid, it is a nightmare to install. You can’t pull it through tight conduits. It kinks at the corners. You have to use more connectors, which creates more weak points. This LAPP cable solves that problem with Class 5 flexibility.We use fine-wire stranding made of bare copper. This means the metal inside is made of many tiny wires twisted together, not one solid chunk. This makes the cable incredibly supple. It moves freely. You can route it around corners without fighting it. The outer sheath is made of high-quality PVC. It is tough. It resists oil, grease, and mechanical stress. If you drag it across a metal surface, it won’t scrape off easily. It is rated for fixed installation, but it handles occasional movement well too. The external diameter is 6.8mm. That is slim enough to fit into most cable chains (drag chains) without taking up all the space.
Technical Specs that matter to you
You need to know if this fits your setup. Here are the hard numbers. No fluff.
- Product Type: Low-frequency data cable / Control cable
- Brand: UNITRONIC® by LAPP (Article No. 0034507 / 8201051004)
- Conductor: Bare copper, fine-wire stranded (Class 5)
- Core Insulation: PVC (Polyvinyl Chloride)
- Shielding: Tinned copper braiding (high coverage)
- Outer Sheath: PVC, grey color (RAL 7001)
- Number of Cores: 7
- Cross-Section: 0.34 mm² per core
- Nominal Outer Diameter: 6.8 mm
- Flexibility Class: Very flexible (Class 5)
- Voltage Rating: Up to 300/500 V
- Temperature Range: Fixed installation: -40°C to +70°C / Flexible installation: -5°C to +70°C
- Standards: IEC 60332-1-2, DIN VDE 0812, CPR Class E
- Fire Behavior: Flame retardant (does not propagate fire)
Where should you use this cable?
This cable is a chameleon. It fits in many places. You will see it most often in industrial automation. Think about a control cabinet. The wires inside are a mess. You need thin, flexible wires to connect the PLC to the terminal blocks. This 7-core cable is perfect. You can use one cable to carry multiple signals.It is also great for robotics. Robot arms move constantly. Standard wires crack under that stress. This cable’s flexibility means it lasts longer in moving parts. It is also used in instrumentation. If you are wiring load cells, pressure sensors, or thermocouples, you need accuracy. The shielding ensures the tiny voltage changes from the sensor aren’t distorted by outside noise.Another big use is in building automation. For audio signals, alarm systems, or intercoms, you need reliability. You don’t want static on the line. The LiYCY series is the go-to for clear signal transmission. Even in harsh environments with UV exposure or chemicals, the PVC jacket holds up well. It is a “set it and forget it” kind of cable.
Why buy the German Import by LAPP?
You can buy cheap cables from anywhere. But “cheap” often costs more in the long run. LAPP is a giant in the industry. When you buy UNITRONIC®, you are buying decades of engineering. They didn’t just make a cable; they made a standard.The “Imported from Germany” label matters. It means strict quality control. Every meter is tested. The copper is high grade. The shielding coverage is consistent. You won’t get a batch that is great and then a batch that is bad. Consistency saves you time. You don’t have to test every spool when it arrives. You just install it.Also, LAPP cares about safety. This cable meets the IEC 60332-1-2 standard. That means if there is a fire, the cable won’t spread the flames. It is also CPR rated Class E. This is a requirement for many construction projects in Europe and the US. If you use non-compliant cable, you risk failing inspection. With this cable, you are on the safe side. It is halogen-free in many variants (check specific article numbers), which means it doesn’t release toxic smoke if burned. That protects your people and your equipment.
How to install and handle
Installing this cable is straightforward because it is user-friendly. Since it has no earth core (ground wire) in the core bundle itself, the shielding acts as the ground path. Make sure you terminate the shielding correctly. Use a proper cable gland or clamp that makes 360-degree contact with the braid. If you just strip it back and leave it loose, the shield won’t work.For stripping, use a sharp automatic stripper. The PVC insulation strips cleanly. Don’t nick the copper strands. For connectors, ferrules are your best friend. Crimp a ferrule on the end of the 0.34mm² core, and you have a solid pin that fits into any terminal block. Because the cable is round and flexible, it seals well in conduit fittings. It pulls easily through walls and cable trays. Just remember the minimum bending radius. Don’t kink it sharper than 6 times the diameter (about 40mm). Keep it smooth, and it will serve you for years.
Get your custom quote today
You have a project. You need reliable parts. You can’t afford for the supply chain to let you down. We have the UNITRONIC® LiYCY 7×0.34mm² in stock or available for import. We know you need competitive pricing and fast delivery.Don’t settle for generic cables that cause interference headaches. Get the real deal from LAPP. Whether you need 100 meters or 10,000 meters, we can help. We specialize in connecting you with the best German engineering for your electrical needs.Stop guessing about quality. Stop worrying about signal noise. Let’s get your machines running smoothly.Click the “Request Quote” button now. Tell us your required length and destination. We will check our inventory and send you a price that beats the competition. Let’s build something reliable together.