Tired of cables that crack, break, or fail in tough environments?
You know the struggle. You are wiring a new machine or fixing an old control panel. You buy a cheap cable. It looks good on paper. But when you pull it through the conduit, it snaps. Or when the machine gets hot, the insulation melts. Maybe oil leaks onto it, and the jacket swells up and falls apart. Worst of all, a short circuit stops your whole production line. That costs money. It costs time. It costs your reputation.You need a cable that works hard. You need a cable that bends without breaking. You need a cable that resists oil, chemicals, and heat. You need the Lapp Kabel OLFLEX CLASSIC 110 4G25. This is not just a wire. It is a German engineered power and control cable built for real industrial life. It handles torsion. It handles tight spaces. It handles heavy loads. Let’s look at why this 4-core 25 sq mm cable is the smart choice for your next project.
What makes the OLFLEX CLASSIC 110 4G25 special?
This cable is a star performer for standard applications. It is flexible, strong, and safe. The “4G25” name tells you exactly what it is. You get 4 cores. Each core has a cross-section of 25 square millimeters. That is a lot of copper. It can carry power and signals without breaking a sweat.The brand is Lapp Kabel. They are a top name in the industry. When you buy this, you buy peace of mind. The cable meets strict European standards. It is VDE certified. It is CE marked. It passes the Ecolab test. This means it is safe for people and the planet.The outer sheath is grey PVC. It looks clean. It hides dirt well. But it is tough. It resists oil and chemicals. If you work in a factory with hydraulic fluid or coolant, this oil-resistant cable will not get soft or brittle. It stays strong.
Technical Specifications: The numbers you need
You need hard data to make a decision. Here is the breakdown for the 4G25 flexible bare copper command and control multicore cable:
- Voltage Rating: 300/500 Volts AC. This is standard for low voltage power and control circuits.
- Test Voltage: 4,000 Volts (4 kV). This shows how strong the insulation is.
- Conductor Material: Bare Copper. Not aluminum. Copper conducts better. It lasts longer.
- Conductor Type: Fine-stranded (Class 5). This is key for flexibility.
- Number of Cores: 4.
- Conductor Cross-Section: 25 mm².
- Resistance: 0.78 Ohms per kilometer. Very low resistance means less heat and less power loss.
- Outer Diameter: 23.5 mm. It is round and compact.
- Weight: About 1,350 kg per kilometer. It is heavy because it uses real copper.
- Copper Index: 960 kg/km. This confirms the high copper content.
- Temperature Range: Fixed installation from -40°C to +80°C. It handles freezing cold and hot machinery.
- Bending Radius: For fixed installation, it is 4 times the outer diameter (about 94 mm). For dynamic use, it is 15 times (about 352 mm). This tight bend radius saves space in crowded cabinets.
Built for Torsion and Flexing
Machines move. Cables move with them. A stiff cable will snap if it twists. The OLFLEX CLASSIC 110 uses a special layering technique for the wires. The cores are stranded in layers. This makes the cable very supple.You can use this cable for torsional load applications. What does that mean? It means you can twist it. Think of a robotic arm. The cable at the joint twists back and forth. This cable can take that stress. The insulation does not crack. The copper strands do not break.It is also great for fixed installation. Even if it does not move, you need to route it around corners. The flexible core makes pulling the cable easy. You do not need a massive amount of force. This protects the cable inside walls, cable trays, or conduits.
Where to use this cable? (Application Scenarios)
This multi-core cable fits many jobs. It is a workhorse in the industrial world. Here are the top places you will see it:
- PLC and Control Panels: This is the brain of your machine. The 4 cores can carry power to the PLC and signals from sensors. It keeps the control system running smoothly.
- Machine Tools: Lathes, milling machines, and grinders vibrate. They get hot. This cable resists vibration and heat.
- Conveyor Belts: The cables on a moving belt need to flex millions of times. This cable is rated for occasional flexing.
- Construction and Buildings: Use it for wiring lights, pumps, and fans. It is flame retardant. If a fire starts, it does not spread the flames.
- Outdoor and Underground: With the right protection, it can handle moisture. The PVC jacket keeps water out of the copper.
It is also PWIS-Free. This is a fancy term. It means the cable does not release sticky stuff that messes up your contacts. In electronics, “sticky” is bad. This cable is clean.
Safety First: Flame Retardant and Chemical Resistant
Safety is not optional. In a factory, a cable failure can cause a fire. The OLFLEX CLASSIC 110 is flame-retardant according to IEC 60332-1-2. If you burn it, the flame goes out when you remove the fire source. It does not keep burning and spreading.The insulation is PVC. PVC is naturally hard to burn. It also resists chemicals. If you work in a chemical plant, a waste water treatment facility, or an oil refinery, you need this. Acids, alkalis, and oils will not eat through the jacket quickly. This extends the life of your wiring system. You install it once, and it works for years.
Why choose the “4G25” size?
Why 4 cores? Why 25 square millimeters?
- 4 Cores: This is the “Goldilocks” size. It is not too small (like 2 or 3 cores). It gives you extra room. You can use 3 cores for power (3-phase) and 1 core for ground. Or 2 for power, 1 for neutral, and 1 for ground. It gives you flexibility in how you wire things.
- 25 mm²: This is a thick wire. It can handle high current. For a 3-phase system at 380V or 400V, a 25mm² cable can carry around 100 Amps (depending on how it is installed). That is enough power for big motors, heaters, and heavy pumps. You do not need to run two cables. One 4G25 cable does the job.
Comparison: Lapp Kabel vs. Generic Brands
You might find cheaper cables from other suppliers. They might look the same. But they are not the same.
- Copper Quality: Cheap cables might use recycled copper or aluminum-clad copper. This increases resistance. The cable gets hot. The voltage drops. Your machine might not start. Lapp Kabel uses high-purity electrolytic copper.
- Insulation Thickness: Generic cables might have thin insulation to save money. This fails the 4kV test. Lapp Kabel has strict quality control. The insulation is thick and even.
- Stranding: Cheap cables use coarse stranding. They break if you bend them. Lapp Kabel uses fine stranding (Class 5). It bends like a snake.
- Certifications: A generic cable might claim “VDE” but have no proof. Lapp Kabel has the certificates. You can check them. This matters for your insurance and for passing inspections.
When you buy Lapp Kabel, you are buying a brand that has been around for decades. You are buying a cable that meets IEC 60228 and VDE 0293 standards. Do not risk your project to save a few dollars per meter.
Packaging and Shipping
We know you need the cable fast and in good shape. We ship in wooden drums or iron drums. This protects the cable from being crushed during transport. The drums are weather-proof. You can store them outside if you need to.We can ship from ports like Qingdao or Shanghai. We handle the export paperwork. We make sure you get the cables on time for your deadline.
Get a Quote Today
You have a project. You need reliable power and control cables. You need the OLFLEX CLASSIC 110 4G25. It is flexible. It is strong. It is safe. It is German engineering made for the world.Do not settle for second best. Do not guess on the specs. Get the real deal from a trusted supplier. We are a factory-direct cable manufacturer. We can give you the best price for high quality.Send us an inquiry now. Tell us your quantity. Tell us your destination. We will send you a quote within 24 hours. Let’s get your machines powered up and running smooth. Contact us today!