The problem with cheap wires? They crack in the cold and take up too much space.
You know the struggle. You are fixing a car in winter, or maybe you are building an electric vehicle conversion. You buy a standard cable. It looks fine in the shop. But once you put it outside in the freezing rain, the insulation gets hard like a rock. You try to bend it around a corner, and it cracks. Or maybe you are trying to squeeze a bundle of round wires into a tight dashboard gap, and you just can’t fit them. The wires corrode after a few months because moisture got in. The signal gets weak. The charging is slow. You end up replacing the wiring again and again. It wastes your time and money. You need a wire that stays soft in the freezing cold, fits into tight spots, and never rusts.
Meet the German LEONI FLYYF: The flat wire that solves space and temperature problems
This is not just a generic cable. This is a genuine German LEONI 2-core 1.5 sq mm sheathed flat wire. The model number is FLYYF. It is built for real-world abuse. LEONI has been making cables since 1917. They know how to make wires that last. This specific wire has a special flat shape. It is wide and thin. This design is smart because it saves space. You can slide this flat wire into narrow slots where round cables won’t fit. It is perfect for car doors, dashboards, and tight engine bays. The “F” in the name stands for “Flachleitung” which means flat cable in German. It is designed to be flexible. You can bend it thousands of times without breaking the copper inside.
Why “Tin-Plated” and “Cold-Resistant” matters to you
Let’s talk about the metal inside. The conductor is copper. But it is not bare copper. It is tin-plated. Why does this matter? Copper gets dirty. It oxidizes. When copper oxidizes, it turns green and conductive resistance goes up. This means power loss. Heat builds up. By plating the copper with tin, LEONI protects the metal. Tin does not rust easily. It keeps the connection clean and strong for years. This is crucial for high-current applications like battery cables or fast charging.Now, look at the “Cold-Resistant” part. The code is FLYYF. The last “F” often relates to special cold-flex properties. The outer sheath is made of a special PVC mix. Standard PVC gets brittle at -10°C. This LEONI cable stays flexible down to -40°C. Imagine you are in Canada, Russia, or a high mountain area. The temperature drops way below zero. Your wires need to stay soft. If the insulation cracks, water gets in. Short circuit. Game over. This wire prevents that. It handles heat too, up to +105°C. So it works in hot engines and freezing winters.
Technical Specs: What is inside the cable?
You need to know exactly what you are buying. Here are the hard facts about this LEONI FLYYF cable:
- Brand: LEONI (Germany)
- Series: FLY / Adascar / Mocar family (Automotive grade)
- Type: FLYYF (Flat cable with PVC sheath)
- Cores: 2 Cores (2 x 1.5 mm²)
- Nominal Cross-Section: 1.5 mm² per core
- Conductor Material: Copper (Cu), finely stranded
- Plating: Tin-plated (SN)
- Insulation Material: PVC (Polyvinyl Chloride)
- Sheath Material: PVC (Cold-resistant blend)
- Voltage Rating: Up to 600V (typical for automotive high voltage)
- Temperature Range: -40°C to +105°C (operating)
- Flame Resistance: Self-extinguishing (meets ISO 6722 standards)
- Shielding: Unshielded (but we have shielded versions like B/C/D codes available)
- Outer Dimensions: Flat shape, approx 2.8mm x 7.5mm (varies slightly by batch)
- Weight: Approx 20-22 kg per km
- Packing: Wooden reels or coils (100m, 200m, 305m rolls)
Where to use this wire? Real-world scenarios
You might ask, “Where exactly do I put this wire?” The answer is: almost anywhere you need power or signal.
Scenario 1: Automotive Wiring Harness
This is the bread and butter for LEONI. Use it for headlight wiring, tail lights, or interior dome lights. The flat shape helps it slide behind the plastic trim panels without leaving a bump. It resists the chemicals found inside a car (oil, brake fluid, cleaner).
Scenario 2: Electric Vehicle (EV) & Hybrid Conversions
If you are building a DIY EV, you need good cables. This 1.5 sq mm wire is great for low-voltage control circuits, sensors, and cooling fans. For high-voltage battery packs (if rated correctly), LEONI has thicker versions (like 25 sq mm or 35 sq mm), but this 1.5 sq mm is the standard for control logic. It supports fast data transmission and power for sensors.
Scenario 3: Industrial Control & Robotics
In a factory, machines move. Cables get dragged in “drag chains.” This wire is flexible enough for dynamic movement. It resists oil and abrasion. Use it for connecting PLCs, sensors, and servo motors in cold storage warehouses or outdoor machinery.
Scenario 4: Marine & Outdoor Audio
Because it is tin-plated and sheathed, it resists salt water. It is great for wiring speakers on a boat or outdoor security cameras. The flat design makes it easy to run along the hull or under carpet.
Quality you can trust: The LEONI difference
Why buy this specific brand? LEONI is not a small workshop. They are a global giant with factories in Germany, Mexico, Poland, and China. They supply OEMs like Stellantis, BMW, and Mercedes. When you buy LEONI, you are buying the same wire that goes into new cars.They follow strict standards. We are talking about DIN 76722 and ISO 6722. These are tough standards. The wire has to pass pull tests, crush tests, and heat shock tests.
- Tensile Strength: The wire doesn’t snap when you pull it.
- Abrasion: The print on the sheath doesn’t rub off easily (important for tracing wires later).
- Flexibility: It bends easily. You don’t need special tools to route it.
Also, the copper is “oxygen-free.” This means fewer impurities. Better conductivity. Less heat. Your devices run cooler.
What about the price and shipping?
We know you care about cost. But cheap wire is expensive in the long run. One short circuit can burn down a whole vehicle. This LEONI wire is competitive. We import directly from LEONI factories and partners in Germany and China. We cut out the middlemen.We can ship by air or sea.
- Packaging: Wooden reels (palletized) or cardboard boxes for smaller coils.
- MOQ: We handle both small samples and full container loads (FCL).
- Lead Time: Fast shipping from our warehouses in Houston, Bremerhaven, or Shanghai.
We have the FLYYF in stock. We also have similar codes like FLRY (thin wall), FLRYWY (heavy wall), and FLYY (unsheathed). If you need a shielded version (with foil or braid), ask for FLY-B or FLY-C.
Don’t settle for “good enough.” Get the best.
You have a project to finish. You need wires that work the first time. You need wires that don’t crack in the cold. You need the German engineering of LEONI.Stop searching for random cables on generic sites. Get a cable that has a proven track record in millions of cars worldwide. The FLYYF 2×1.5mm flat wire is the smart choice for professionals.Ready to order? Send us your inquiry now.Tell us the length you need, the destination port, and if you need any special printing on the sheath. We will send you a quote within 24 hours. Let’s get your project powered up with LEONI quality.Click “Send Inquiry” or email us directly. Stock is moving fast!