AK - Simply more values

The AK Air small distribution board from Spelsberg scores with generous connection spaces, sufficient reserves for retrofitting, the option of integrating sockets - and now with even more flexibility. This is ensured by the new PE/N terminals, with which the AK 14-70 variants will be equipped in future. These guarantee the safe and convenient connection of protective and neutral conductors. With the new generation of terminals, the AK Air small distribution board meets the requirements of modern installation environments and the demand for maximum user-friendliness.

Demanding areas of application require professional distribution solutions. Spelsberg has been supplying these with the AK-Small distribution board series since its market launch in 1983. Even under extreme conditions, for example in dusty industrial environments, they guarantee maximum reliability and safety. The housing made of resistant polycarbonate with an impact resistance rating of IK08 defies influences such as collisions or impact forces and is suitable for indoor and outdoor installations. The VDE- and UL-EU-certified AK Air small distribution board protects the fixtures against water jets and dust in accordance with protection class IP65. The integrated air ventilation element ensures constant air circulation and prevents the formation of condensation.

Complex wiring faster than ever

The tool-free removable standard rails simplify installation work. With the technically optimized PE terminal and the completely newly developed N modules, the new generation of PE/N terminal blocks offers an unprecedented combination of safety and ease of use in this segment. Thanks to the improved snap-on fastening of the base carrier, removing and installing the terminal is extremely convenient - with one hand and without tools. While safety is the top priority with the PE terminal block and connected PE conductors can only be disconnected with a tool, both rigid and flexible conductors can be connected and disconnected without tools using the practical operating lever on the 4 mm² terminal blocks of the N modules.

The right distribution solution for every application 

N-bridges, which are freely accessible even when conductors are connected and can be easily removed from the N-modules using a screwdriver, also make it easy to split the N-terminal into up to four different N-potentials.

Modules

Two additional units per row 

The wide housing designs of all AK variants offer the installation technician a clear space advantage when wiring,
since 14 modules per row rather than the normal 12 can be fitted. This allows the necessary spare modules to be provided for retrofitting or expansion of the system, for example.

Unrestricted handling of the frequently used  installation terminal blocks, such as three- and four-level terminal blocks, as required in industry and commerce , is enabled by the additional space provided. Even high-current terminal blocks can be positioned without tools on height-adjustable standard rails in such a way that connected cables with large conductor cross sections do not risk being crushed. This opens up a variety of possibilities and ensures that installation work is carried out with ease.

The two additional modules then allow accommodation in a single row of, by way of example, one surge protector (3-pole), one residual current circuit breaker and six load current circuit breakers.

Connection space

Additional housing space on Plus variants

The AK Plus variants have an additional connection space with a 35 mm standard rail, on which the installation and terminal blocks or switching and control devices can be quickly and conveniently mounted.

Following assembly, the additional row remains hidden by a non-transparent cover. This ensures an uncluttered appearance and also prevents unauthorised access to the components.

The space above and below the rail-mounted devices can be used as required and provides options for integration and supply of the input and output terminals. The cover of the AK small distribution board can be rotated through 180°.

Ventilation element

Effective and maintenance-free protection from condensation

The Air ventilation element prevents condensation whilst maintaining the high level of IP65 protection. Condensate build-up, which occurs in housings with a high degree of protection due to changes in temperature as a result of external influences, and dissipation from the components fitted, is rapidly removed from the housing through air exchange. Due to the constant and high rate of air exchange the internal air is always able to mix with the ambient air and transports the moisture to the outside.

Advantages of the Air ventilation elements:

• Prevention of condensation whilst maintaining the IP65 high degree of protection.
• High air exchange rate, 100% pressure compensation
• 100% protection from foreign bodies
• Maintenance free