Tired of cables that crack, overheat, or fail in oily environments?
You know the struggle. You install a new power cord or control cord in your machinery or outdoor system. A few weeks later, it gets brittle. The insulation cracks. Oil from the equipment seeps into the copper wire. Suddenly, your machine stops working. You face downtime. You lose money. And you have to rip everything out and start over.Standard PVC cables just don’t cut it in tough spots. They swell up when they touch lubricating oil. They get hard in the cold. They break if you bend them too much. You need something better. You need a cable that handles oil, heat, and constant movement without breaking a sweat.This is where our German-imported 4-core 1 square millimeter cable comes in. It is not just a wire. It is a heavy-duty solution built for the real world. We call it the RVVY 3922952 type. It uses high-purity oxygen-free copper. The outer jacket resists oil, chemicals, and abrasion. It stays flexible even in freezing cold. It is the power cord and control cord you wish you had bought the first time.
What makes this “German Imported” cable special?
When you see “German Standard,” it means precision. It means the copper wire is cleaner. The twisting of the wires (stranding) is tighter. The plastic jacket is mixed with the right chemicals to resist oil.This 4-core 1 square millimeter cable follows strict VDE and DIN standards. These are the rules German engineers use. The conductor is made of fine-stranded bare copper. This is not a solid stick of metal. It is hundreds of tiny wires twisted together. This makes the cable super flexible. You can pull it through tight pipes. You can wrap it around corners. It does not kink.The “RVVY” code tells you exactly what it is. “R” means flexible. “V” means PVC insulation. The second “V” means PVC sheath. “Y” means oil-resistant. This is the specific type of oil-resistant flexible wire used in European factories for decades. It works. It lasts. And it keeps your equipment running.
Technical Specs: The numbers that matter
You need hard data. Here is exactly what you get with this 4-core power cord. We don’t hide anything.
Electrical Performance
- Voltage Rating: 300/500 Volts. This is the standard for industrial control and power. It handles 110V, 220V, and 24V systems easily.
- Conductor Material: Bare Copper, Oxygen-Free. High conductivity means less heat.
- Conductor Class: Class 5 (VDE 0295). This is the most flexible stranding class.
- Cross-Section: 1.0 mm² per core. 4 cores total.
- Test Voltage: 4000 Volts. It can handle spikes without failing.
- Insulation Resistance: ≥ 1.0 x 10⁸ Ω.m at 20°C. Electricity stays where it belongs.
Physical & Mechanical Properties
- Core Colors: 3 Black cores + 1 Green/Yellow core (Ground). Numbered cores for easy wiring.
- Outer Sheath Color: Black or Grey (RAL 7001).
- Outer Diameter: Approx 6.7 mm to 7.5 mm (depending on insulation thickness).
- Weight: Lightweight but robust. Easy to handle during installation.
- Bending Radius:
- Fixed: 4 times the cable diameter.
- Moved: 7.5 to 15 times the diameter.
- Translation: You can bend it tight during install, and it won’t break when it moves.
Environmental Resistance (The “Tough” Stuff)
- Oil Resistance: Passes DIN EN 60811-404. It does not swell or get soft in contact with mineral oils.
- Temperature Range: -40°C to +80°C. Works in freezers and hot factory floors.
- Cold Bend Test: Passes at -15°C to -40°C. No cracking in winter.
- Flame Retardant: IEC 60332-1-2. It doesn’t spread fire easily.
- Low Smoke: IEC 61034. If it burns, it makes very little smoke. Safe for indoor use.
- Abrasion Resistance: Very suitable for moving parts.
Where should you use this cable?
This is not for your house lamp. This is for heavy work. The RVVY 3922952 cable shines in places where other wires die.
Industrial Machinery & CNC Centers
This is the #1 use case. CNC machines use cutting oils and coolants. A normal cable absorbs this oil and rots from the inside out. This oil-resistant flexible wire laughs at coolant. It is perfect for servo motors, sensor lines, and control panels in machining centers.
Robotics & Automation
Robot arms move. They twist. They rotate. The cable inside the arm (energy chain) must flex millions of times. The fine-stranded pure copper wire handles this constant motion (flexing) without the metal fatigue that breaks solid wires.
Outdoor & Construction Sites
UV rays kill cheap plastic. This cable has UV and ozone resistance. It is perfect for outdoor lighting, construction site power, and temporary extensions. The black PVC sheath blocks sunlight. The water-resistant jacket keeps moisture out of the 1mm² copper cores.
Automotive & Marine
Cars and boats vibrate. They get hot. They leak fluids. This 4-core 1 square millimeter cable is great for auxiliary lighting, winch controls, or marine navigation equipment. The Green/Yellow ground wire ensures safety in wet environments.
Conveyor Belts & Elevators
In a warehouse, the cable moves with the belt. It gets dragged. It gets scraped. The abrasion-resistant PVC outer sheath protects the inner copper. You won’t have to replace the cable every month.
Why buy this specific RVVY 3922952 from us?
We are a factory-direct trading company. We cut out the middlemen. You get German engineering quality at a Chinese factory price.Pure Copper Guarantee: Some sellers use Copper Clad Aluminum (CCA). It is cheap. It breaks easily. It has high resistance. We use 99.9% pure bright copper. You can test it. It conducts better. It runs cooler.Real Oil Resistance: We use special compounds (like TPE or specialized PVC) in the outer jacket. We test it in hot oil (60°C). It doesn’t just survive; it stays flexible.Customizable: Need a different color? Need a shield (braiding) for electromagnetic interference (EMI)? We can make it. We can make it longer. We can make it shorter. We can print your logo on the meter marking.Certifications: We provide CE, VDE, and ISO certificates. If you are exporting to Europe or the US, this cable meets the safety standards for insurance and inspections.
Don’t let a bad cable stop your production line
Imagine buying a cheap cable. It costs 0.50permeter.Itfailsin3months.Youpayforlabortoreplaceit.Youlose8hoursofproduction.That“cheap“cablejustcostyou2,000 in lost time.Our German-standard 4-core 1 square millimeter cable costs a bit more upfront. But it lasts for years. It runs cooler. It resists the oil that destroys other wires. It is the “buy it once, forget about it” solution.We have stock in 100m, 200m, and 500m reels. We can cut it to exact lengths. We ship worldwide.Ready to upgrade your wiring?Stop dealing with cracked, brittle wires. Get the oil-resistant flexible wire that professionals trust.Send us an inquiry today. Tell us your voltage needs, your length, and your quantity. We will send you a quote within 24 hours. Let’s get your machines running smoothly with the best pure copper wire on the market.Click “Contact Supplier” now and ask for the datasheet PDF!