Technik
Technik Cable Reel 15m 4-way with earth, 3x1.5mm²
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Black
19,95
Cable Reels
Cable reels, also known as extension cord reels, are super handy for providing safe and tidy power where there isn’t a socket available, like in the garden, on a construction site, or in your workshop. After use, you simply wind the cable back up, keeping it protected and making storage easy. This prevents clutter and extends the cable’s lifespan. There are many different types of reels for all sorts of jobs. Which one you choose depends on the length you need, the working conditions, and the equipment you’ll be using.
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Different types of cable reels: choosing the right functionality
Depending on the job and the environment, there are various types of cable reels available. Each type has specific features that make it suitable for a certain situation.
Cable reels for indoor and outdoor use
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Indoor cable reels: These reels are usually equipped with a PVC cable (H05VV-F) and are suitable for use in dry spaces, such as at home, in offices, or hobby rooms. They provide enough flexibility and sockets for everyday equipment.
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Outdoor cable reels: For work outdoors or in damp or dusty environments, reels with a higher protection rating (IP value) are necessary. These often feature a more robust rubber or neoprene cable (H07RN-F or H07BQ-F) that resists moisture, oil, chemicals, and UV radiation. The sockets are typically fitted with self-closing caps for extra protection.
Manual and automatic cable reels
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Manual cable reels: With this type, you wind the cable in and out by hand. They are easy to use and widely available in different lengths and with various numbers of sockets.
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Automatic retractable reels: These reels are equipped with a spring mechanism that automatically retracts the cable with a gentle pull on the cord. This system, similar to that of a vacuum cleaner, makes storage extra easy. Many automatic reels can also be mounted on the wall or ceiling, helping to keep the workspace tidy.
Cable reels for heavy-duty power
For heavy electrical equipment, often used on construction sites or in industry, special heavy-duty power cable reels are required. These can be recognized by the CEE plug with three or five pins and are designed to handle higher voltages (400V) and currents.
Safety when using cable reels
Safe use of cable reels is essential to prevent overheating, short circuits, and fires. Here are some important points to keep in mind:
Unwind the cable fully
A common question is why a cable reel should be fully unrolled. If a reel is left rolled up during use, the heat generated by the current cannot dissipate properly. This can lead to overheating of the cable and, in the worst-case scenario, to short circuits or fire. By unwinding the cable completely, heat can escape efficiently, ensuring the reel operates safely and at full capacity. The maximum load (in Watts) differs significantly between coiled and uncoiled states.
Thermal protection on a reel
Many reels are fitted with a thermal protection switch, often recognized by a red button on the socket plate. This protection activates in case of overload or overheating, automatically cutting off the power supply. This prevents damage to the reel and connected equipment. If the protection is activated, unplug the reel, unwind the cable completely, and allow it to cool down. Once cooled, press the reset button to put the reel back into use.
Choosing the right cable thickness
The thickness of the conductors in the cable is crucial for safe operation, especially when connecting high-powered devices. A cable that's too thin can overheat. The conductor cross-section, expressed in mm², must match the total current you expect to use.
| Current (Ampere) | Conductor cross-section up to 24 meters (mm²) | Conductor cross-section over 24 meters (mm²) |
|---|---|---|
| 0 - 10 A | 1.0 | 1.5 |
| 10 - 16 A | 1.5 | 2.5 |
| 16 - 25 A | 2.5 | 4.0 |
| 25 - 32 A | 4.0 | 6.0 |
You can calculate power in Watts as Voltage (Volt) x Current (Ampere). Always check that the total power of connected devices does not exceed the maximum capacity of the reel, whether coiled or uncoiled.
General safety tips
- Never connect multiple cable reels or extension cords in a row.
- Do not leave reels and extension cords permanently on walkways or driveways to prevent tripping hazards and damage.
- Regularly inspect cables and sockets for damage.
- Immediately discard damaged materials.
- Ensure sockets face downward to prevent the accumulation of dust or dirt.
Service life and maintenance of cable reels
With proper use and maintenance, a cable reel can last for many years. Choose quality brands known for their durability and safety. Materials such as break-resistant plastic and high-quality rubber or neoprene cables contribute to a longer service life.
Many professionals value cable reels that are easy to unwind and rewind, have robust housings, and include essential safety features. By following these guidelines, you'll select and use a cable reel that suits your tasks and ensures safe power supply at any location.