Tired of signal noise causing machine downtime? Wasting hours tracing black wires in complex panels?
You know the struggle. In industrial automation, one bad cable can stop a whole production line. Electrical noise from motors and drives messes up your data signals. Wires get damaged by oil or chemicals. Technicians waste time guessing which wire is which in a crowded control cabinet. You need a cable that fights interference, resists harsh environments, and lets you see exactly what’s going on inside.This is not just a standard wire. This is the ÖLFLEX® CLASSIC 110 CY 7-core 1.5 mm² shielded cable. It is built for English-speaking markets like the UK, USA, and Australia where safety and EMC (Electromagnetic Compatibility) standards are strict. It solves your wiring headaches with a transparent jacket, a strong copper shield, and high-purity copper cores.
What makes this 7G1.5 cable special?
This cable meets the LAPP standard for high-performance control cables. The “7G1.5” means it has 7 cores, and each core is 1.5 square millimeters in size. This is the “Goldilocks” size for control circuits—big enough for power signals, small enough to stay flexible.The “CY” in the name stands for the transparent outer sheath. Most cables are black. You have to strip the ends to see the cores. But this cable has a clear jacket. You can see the color coding of the wires without cutting anything. This speeds up installation and troubleshooting. It also has a tinned copper braid shield. This shield acts like a guard. It blocks external noise from entering the cable and stops your signals from leaking out.
The Copper Core: Pure conductivity for your signals
Let’s look inside. The conductor is the most important part of any cable. If the copper is dirty or stiff, you lose power and data.
High-Purity Oxygen-Free Copper
We use 99.99% high-purity oxygen-free copper. Why? Because impurities create resistance. Resistance creates heat. Heat breaks down insulation. Our copper is drawn and annealed multiple times. This makes the strands very soft and flexible. It also lowers the DC resistance. Your signals travel further with less loss.
Class 5 Stranding for Flexibility
This cable uses VDE Class 5 stranding (IEC 60228 Class 5). This means the copper isn’t one solid rod. It is made of many tiny wires twisted together. This is crucial for dynamic applications. If you use a solid wire in a moving machine, it will snap. This stranded wire bends easily. It handles vibration and torsion perfectly. It is ideal for drag chains, robot arms, and moving machinery.
The Shield: Your defense against electrical noise
You work in environments with Variable Frequency Drives (VFDs), servo motors, and welding equipment. These create massive electromagnetic interference (EMI). If your control cable isn’t shielded, your sensors will give false readings. Your PLC might crash.
Tinned Copper Braid Coverage
We use a tinned copper braid for the shield. Tinned copper doesn’t rust. It lasts longer in wet or humid places. The braid provides 360-degree coverage. It has a transfer impedance of max 250 Ω/km at 30 MHz. In simple terms: it stops high-frequency noise very well.
Why Shielding Matters for 7 Cores
With 7 cores, you are likely running a mix of power, ground, and signal wires in one bundle. Without a shield, the power wires can induce voltage in the signal wires (crosstalk). The shield creates a Faraday cage. It grounds the noise. This ensures your 4-20mA signals or data buses remain stable. This is a must-have for EMC-sensitive environments like hospitals, broadcasting stations, or precision manufacturing.
The Jacket: Transparent, Tough, and Chemical Resistant
The outer sheath is the armor. It protects the delicate insides from the real world.
Transparent PVC (CY) for Visual Inspection
The “CY” jacket is a special transparent PVC formulation. It is not just for looks. In complex control panels, you have dozens of cables. With a transparent jacket, you can:
- Check wire integrity visually.
- See if cores are damaged.
- Identify wire numbers printed on the insulation instantly.
- Ensure the ground wire is connected properly.
This saves you hours of labor. You don’t need to ring out every wire with a multimeter before installing it. You can see it works.
Mechanical and Chemical Protection
This jacket isn’t fragile. It is resistant to oils, acids, and alkalis. If you work in a steel mill or a chemical plant, spills happen. Standard rubber cables swell up when they touch oil. This PVC compound resists swelling. It also has excellent abrasion resistance. If the cable rubs against metal tracks, it won’t wear through quickly.
Flame Retardant Safety
Safety is non-negotiable. This cable is flame-retardant according to IEC 60332-1-2. If a fire starts, the cable won’t spread the flames. It is also halogen-free in some variants, meaning it doesn’t release toxic smoke when burned. This is critical for public buildings and underground installations.
Technical Specifications: The numbers you need
When you buy industrial cable, you need exact numbers to match your specs. Here is the data for the ÖLFLEX® CLASSIC 110 CY 7G1.5:
| Parameter | Value |
|---|---|
| Model | ÖLFLEX® CLASSIC 110 CY / STU π GART |
| Cores | 7 Cores (7G) |
| Cross Section | 1.5 mm² (approx 16 AWG) |
| Nominal Voltage | 300/500 V (Uo/U) |
| Test Voltage | 2000 V / 2500 V |
| Conductor | Fine-wire stranded copper, Class 5 |
| Insulation | Special PVC, color-coded |
| Shielding | Tinned copper braid |
| Outer Sheath | Transparent PVC (CY) |
| Outer Diameter | Approx. 11.3 mm – 14 mm |
| Weight | Approx. 140 – 160 kg/km |
| Bending Radius | 6x Ø (fixed) / 15x Ø (moving) |
| Temperature Range | -5°C to +70°C (moving), -40°C to +80°C (fixed) |
| Approvals | VDE, CE, CSA, UL, HAR, RoHS |
Voltage and Testing
The cable is rated for 300/500 Volts. We test it at 2000 Volts (or up to 2500V for older standards) to ensure there are no pinholes in the insulation. This high test voltage gives you peace of mind. You won’t get short circuits when the system is under load.
Temperature Performance
Most cheap cables get stiff in the cold and sticky in the heat. This cable works from -40°C (fixed) up to +80°C. It handles outdoor UK winters and hot factory floors equally well. The transparent jacket is UV resistant, so you can use it outdoors without sunlight cracking it.
Where to use this cable? Real-world scenarios
You might ask, “Is this the right cable for my job?” Here are the top places we see this cable used:
Industrial Automation & Robotics
This is the #1 use case. Connecting PLCs to servo motors. The 7 cores allow you to run power, brake, and encoder signals in one cable. The shield prevents the motor’s magnetic field from messing up the encoder data. The flexibility allows it to move inside cable carriers (drag chains) millions of times without breaking.
Building Management Systems (BMS)
For HVAC control, lighting, and security systems. The transparent jacket is great here because electricians can see the wire colors in dark ceilings or junction boxes. It meets the strict EMC standards for commercial buildings.
Food and Beverage Processing
The jacket is resistant to cleaning chemicals and oils. It is also suitable for wet areas. If you need a version that is strictly halogen-free for confined spaces, we can discuss the FRNC (Flame Retardant Non-Corrosive) options.
Renewable Energy and Wind Turbines
Wind turbines vibrate constantly. Cables inside the nacelle need to be torsion-resistant. This cable handles the twisting motion of the turbine blades. It resists the ozone and UV exposure on the tower.
Why choose LAPP Standard over generic brands?
You can buy cheap cable from a local market. But why risk your reputation? LAPP (and LAPP-compatible standards) is the benchmark for a reason.
- Consistency: Every meter of cable has the same electrical properties. No surprises.
- Longevity: We use high-quality materials. This cable lasts 10-15 years, not 2 years.
- Traceability: Full documentation and certifications (VDE, UL, CSA).
- Support: When you buy a standard product, you get global support and spare parts availability.
Generic cables often cut corners on copper purity or shield coverage. They might claim “shielded” but only have 60% coverage. Our cable has optimized braid coverage for maximum anti-interference.
Installation Tips for the 7-Core Shielded Cable
To get the best performance from this cable, follow these simple rules:
- Ground the Shield Correctly: You must ground the shield at both ends or use a pigtail connection depending on your EMC strategy. A floating shield does nothing. Connect it to a clean earth ground.
- Respect Bending Radius: Don’t kink the cable. The minimum bending radius is about 6 times the diameter when moving, and 15 times when fixed. If you bend it too sharp, you break the shield and the conductors.
- Use Proper Glands: Use EMC cable glands (like Skintop) to clamp the cable. This ensures the shield makes 360-degree contact with the metal enclosure. This is vital for stopping noise.
- Separate Power and Signal: Even though this is a control cable, try to keep it away from high-voltage main cables. If they cross, make them cross at 90 degrees to minimize interference.
Frequently Asked Questions about this product
Q: Is the outer jacket really transparent?A: Yes. It is a clear PVC/TPU compound. You can clearly see the colored cores inside. It has a slight blue or yellow tint depending on the batch, but it is not opaque black.Q: Can I use this for outdoor direct burial?A: The standard CY jacket is UV and weather resistant, making it great for outdoor use. However, for direct burial in soil, we recommend an armor-plated version or a cable specifically rated for underground use (like NYY or SWA) to prevent rodent damage.Q: What is the difference between 1.5 mm² and 2.5 mm²?A: 1.5 mm² handles up to 16-20 Amps depending on the installation. 2.5 mm² handles more current (around 25 Amps). For most control signals and small motors, 1.5 mm² is sufficient and much easier to route.Q: Does it come in 50m or 100m drums?A: Yes. We supply in coils (for smaller orders) and wooden drums (for bulk projects). Standard packaging is 100m or 500m drums. We can cut to length if needed.
Ready to upgrade your wiring system?
Don’t let signal interference and cable failures cost you money. You need a cable that works as hard as you do. The ÖLFLEX® CLASSIC 110 CY 7G1.5 shielded cable is the smart choice for reliable, long-lasting industrial control.We are a factory-direct supplier. We can customize the length, print your company name on the jacket, or adjust the core colors. We ship worldwide with fast lead times.Send us your inquiry today. Tell us your voltage requirements and quantity. We will send you a competitive quote within 24 hours. Let’s build a system that never lets you down.Click here to request a sample or a formal quotation now!