In brief: Choosing the right electrical installation products depends greatly on where they will be used. For indoor areas, power strips with surge protection and a switch are ideal, while outdoor areas require special splash-proof power distributors. Adapters and socket units with integrated residual-current devices provide additional safety. Our comparison shows which products are best suited to different requirements.
The electrical installation in your house or flat forms the invisible nervous system of modern technology. But when choosing sockets, power distributors and adapters, many questions arise: What is safe? What is practical? And which products deliver on their promises? Our 2026 test and comparison focuses precisely on these questions.
We looked at various categories of electrical installation products and examined products that combine safety with everyday practicality. From the classic power strip for your desk to a weatherproof power distributor for the patio, you will find well-founded buying advice here.
Table of contents
Indoor power strips tested
A good power strip is more than just an extension. It is a key safety component for your electronic devices.
Surge protection: the invisible bodyguard
Reliable surge protection is non-negotiable. It protects expensive home electronics such as televisions, computers and consoles from voltage spikes in the mains, which can be caused by lightning strikes or switching operations. Look for a high energy absorption rating.
Tip: Always place power strips with surge protection at the start of the chain. Do not connect additional basic extension leads to them, as this can render the protection ineffective.
The product
, a 10-way aluminium power strip, places a clear focus on safety and ease of use with its integrated protection and central switch. The aluminium housing also ensures good heat dissipation.
Placement and everyday handling
Where will the power strip be used? On a desk, slim designs and a separate switch for each device are advantageous. Behind a TV cabinet, on the other hand, many sockets in a compact space and a particularly flat housing are more important.
Outdoor power distributors compared
Different rules apply outdoors. Moisture, dust and UV radiation are the biggest threats to safe electrical installation.
IP rating: the key to safety
The IP rating (International Protection) indicates how well an enclosure is protected against foreign objects and water. For outdoor use, at least IP44 is required. This means protection against splashing water from all directions.
Warning: Never use indoor power distributors outdoors, even temporarily under a canopy. Condensation or a rain shower can be enough to create life-threatening situations.
In our comparison, the BANGKOK model
(BANGKOK) and the (TOKIO) stand out as being specially designed for indoor and outdoor use. Their robust construction and specified IP rating make them reliable partners for gardening, parties or powering tools.
Durability and practical features
A sturdy housing that can withstand the occasional knock and a sufficient cable length are essential. Some models offer additional mounting options or retractable cable reels.
Safety first: socket units with residual-current protection
Especially in damp areas such as bathrooms, kitchens or garden sheds, an integrated residual-current device (RCD) offers an invaluable safety advantage.
How an RCD can save lives
An RCD monitors the flow of electricity. If some of the current does not return along the intended path, for example through a person's body, the device immediately switches off the circuit. This protection can save lives.
The 2-piece socket units in the "Core" series, such as the
, combine this vital protection with a practical flap cover. This keeps the socket protected when not in use while keeping the RCD within easy reach. It is an elegant solution for retrofitting.
Note: An RCD or socket unit of this type should always be installed by a qualified professional. Work on a fixed electrical installation is not suitable for DIYers.
Adapters in practice: When are they worthwhile?
Adapters such as the
offer a flexible solution for connecting devices with different plugs to existing sockets. However, their use has limitations.
Continuous operation vs. occasional use
Basic adapters are intended for occasional use, such as on holiday. For continuous operation, for example to use an imported device permanently, permanently installed solutions or higher-quality adapters with protective earth contacts (SEV) are the better choice.
They prevent loose connections and provide a secure connection. A set of two adapters also offers practical replacement or multiple-use options.
Tips for assembly and installation
Even with seemingly simple tasks such as connecting a power strip, there are several points to consider.
Use the right tools
Make sure that the screw terminals on distribution boxes such as the
are tightened securely. A loose connection can cause overheating. Use a suitable screwdriver and always work with the power switched off.
Pay attention to cable cross-section and load capacity
Every cable and distributor has a maximum load capacity. Add up the power consumption of your connected devices (in watts). Do not exceed the maximum power rating specified for the power strip. This is particularly important for high-power appliances such as fan heaters or coffee machines.
Buying guide: How to make the right choice
Before buying, ask yourself the following questions to find the perfect product for your technology.
Checklist for your decision
- Place of use: Indoors or outdoors? This determines the required degree of protection.
- Number of devices: How many sockets do you really need? Allow some room for extras.
- Type of devices: Do you need surge protection for sensitive electronics?
- Convenience: Would you like individual switches, a master switch or a cable reel?
- Safety: Is RCD protection useful or even mandatory for the place of use?
By clarifying these points, you are investing not only in a product, but above all in safety and durability.
The future of electrical installation: What lies ahead?
The world of electrical installation is becoming smarter and more integrated.
Integration of smart home functions
Power sockets are increasingly becoming connected components. Remote switching of devices, monitoring energy consumption per socket and integration into automation routines will become standard. Physical quality and safety remain the essential foundation.
Sustainability and materials
Recyclable materials and durable construction are moving to the forefront. Products such as the aluminium power strips mentioned above and robust outdoor distributors are already setting standards in this area. Ideally, you should only need to buy an electrical installation once.
In conclusion, the best electrical installation is the one that meets your specific requirements and fulfils the highest safety standards. Our comparison gives you the tools you need to make this choice with confidence. Choose quality, because it protects your home and devices in the long term.
The highest-rated electrical installation products from our range compared directly:
| Model | Customer rating | Availability |
|---|---|---|
| 10-way aluminium power strip with surge protection and switch | – | Currently unavailable |
| 2-piece black adapter SEV11 2S set | – | Currently unavailable |
| 2-piece "Core" base - with hinged cover and residual-current device | – | Currently unavailable |
| 2-piece "Core" base - with hinged cover and residual-current device | – | Currently unavailable |
| 2-way distributor, M20 for 3G 1.5 mm² | – | Currently unavailable |
Frequently asked questions
- What should I look for in an indoor power strip?
- Look for robust surge protection, a separate power switch for each device and a sufficient number of sockets. A housing made from non-flammable material and a long, flexible cable are other important quality features.
- What is the difference between an outdoor and an indoor distributor?
- Outdoor distributors offer significantly greater protection against splashing water and dust, indicated by their IP rating (e.g. IP44). The housing is weatherproof and UV-resistant to withstand direct sunlight.
- What are the benefits of a base with an integrated residual-current device?
- An integrated residual-current device (RCD) reliably protects you from potentially fatal electric shocks. It detects dangerous residual currents and switches off the circuit within milliseconds. This is particularly useful in damp areas such as bathrooms or outdoors.
- Can I use an indoor distributor outdoors for a short time?
- No, this is dangerous. Indoor distributors are not protected against moisture. Even splashing water or dew can cause a short circuit or electric shock. For outdoor use, only use products specifically designed for this purpose.
- Are adapters with a protective earth contact (SEV) better than those without one?
- Yes, adapters made to the SEV standard (Swiss standard) offer a polarisation-safe protective earth contact and are often more robustly constructed. They ensure a secure connection and are better suited to continuous operation than basic travel adapters.
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