DC System, Cable and Tool – Components and Accessories for Reliable Power
DC system, cable and tool solutions are essential for ensuring efficient and safe power distribution in automotive and trailer applications. Our selection includes direct current components, electrical wiring and accessories, as well as DC power system parts designed for car trailers, caravans, and other installations.
- ✔ High-quality trailer electrical cables and fittings for secure connections
- ✔ Durable automotive DC tools and connectors for easy installation
- ✔ Versatile options for various DC power system requirements
- ✔ Reliable performance in demanding environments
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Frequently Asked Questions
7-pin plug (Type N, ISO 1724) — the older standard:
| Pin | Terminal | Colour according to DIN | Function |
|---|---|---|---|
| 1 | L | yellow | Left direction indicator |
| 2 | 54G | blue | Rear fog light |
| 3 | 31 | white | Ground |
| 4 | R | green | Right-hand direction indicator |
| 5 | 58R | brown | Right-hand rear light |
| 6 | 54 | red | Brake light |
| 7 | 58L | black | Left rear light and number plate light |
13-pin plug (ISO 11446) — current standard, with additional functions and separate earth connections:
| Pin | Colour according to DIN | Function |
|---|---|---|
| 1 | yellow | Left direction indicator |
| 2 | blue | Rear fog light |
| 2a | — | Switch for rear fog light on the vehicle |
| 3 | white | Earth (circuits 1–8) |
| 4 | green | Right-hand direction indicator |
| 5 | brown | Right-hand tail light, side marker light and number plate light |
| 6 | red | Brake light |
| 7 | black | Left tail light, side marker light and number plate light |
| 8 | orange | Reversing light |
| 9 | red, 2.5 mm² | Direct power supply (terminal 30) |
| 10 | black-red | Battery charging lead |
| 11 | green-brown | Earth for charging cable |
| 12 | — | not assigned |
| 13 | white, 2.5 mm² | Earth for circuit 9 |
The numbering stamped on the plug and socket is binding — for cable sets with different numbering, this applies rather than the wire colours.
Adapter: Converting from a 13-pin connector on the vehicle to a 7-pin connector on the trailer is straightforward. Conversely, only the basic functions will work — the reversing light, constant power supply and charging circuit are missing, as there are no corresponding wires in the 7-pin system. Disconnect the adapter when not in use, otherwise the contacts will corrode.
If the lighting fails, it is usually not the bulb that is faulty, but the connection to it. Check in the following order:
- Contacts in the plug and socket — corrosion is the most common cause. Clean, dry and apply contact cleaner.
- Earth — is the connection to the frame secure and rust-free? If several functions fail at the same time, the earth connection is almost always to blame.
- Cables on the drawbar — this is where cables most often chafe through, often directly behind the plug.
- Bulbs and lights — only once everything else has been checked.
Conversion to LED: Lights must have a valid approval mark. After conversion, the trailer monitoring system in the towing vehicle may no longer be able to detect the trailer because the current flow is too low — in which case a suitable control unit will help.
Spare parts: electrical components, plugs and cables, as well as lighting.
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Product Overview
Our DC system, cable and tool category offers a comprehensive range of direct current components and electrical wiring accessories tailored for automotive and trailer applications. From flat supply cables to specialized connectors and mounting pliers, these products are engineered to support efficient DC power distribution in car trailers, caravans, and similar vehicles. Each item is selected for compatibility with common DC systems, ensuring seamless integration and dependable operation in various installation scenarios.
Key Features & Benefits
These DC power system parts are crafted with durability and reliability in mind. The trailer electrical cables and fittings provide secure, stable connections, minimizing the risk of power loss or short circuits. Our automotive DC tools and connectors allow for straightforward assembly and maintenance, reducing downtime and ensuring optimal performance. Whether you need end caps, snap-in connectors, or mounting pliers, each accessory is designed for long-term use in challenging environments.
Selection Guide
Choosing the right electrical wiring and accessories depends on your specific requirements. Consider the type of installation—such as car trailer, caravan, or other DC-powered systems—and select cables with appropriate conductor specifications. For secure terminations, use end caps and snap-in connectors compatible with your chosen flat cables. Mounting pliers are recommended for precise and safe installation of connectors, ensuring a professional finish and reliable contact.
Applications
These DC system, cable and tool products are ideal for a wide range of applications, including automotive trailers, caravans, and other vehicles requiring robust DC power solutions. They are suitable for both new installations and maintenance or upgrades of existing systems. With their versatile design, these components also serve well in custom electrical projects where dependable direct current connections are critical.
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