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Spelsberg was founded as a family enterprise in Germany. It was started in 1904 by Ernest Spelsberg and Walther Kaiser. The company began its operations with manufacturing insulation tubes.

In the early 30s, Spelsberg created the first junction box made of plastic. It opened the door to the world of new possibilities for the electrical installation industry. From that point, the company has registered tens of their patents in Germany, Europe, and all over the world.

The company puts emphasis on the durability of its products, and uses only the highest quality raw materials in the production process.

Currently, Spelsberg is one of the leading manufacturers of enclosures and junction boxes for electrical installations, enclosures for modular apparatus, and low voltage switchgears. Many of its flagship products, such as Abox, RR series of junction boxes, compact AK switchgears, or GTI enclosures, are well known throughout the industry.

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