The Spelsberg Schalksmühle factory is capable of independently carrying out UL (Underwriters Laboratories) testing for certification for customers in the USA and Canada as well as demanding European customers.
The UL testing (or CUL testing for Canada) is demanding material testing recognised worldwide in which one or multiple properties of a specific property, service or procedure is determined. This takes place in conformity with specific methods or technical requirements. For instance, components for industrial control units are tested for water protection and impact strength. Due to its major importance for the North American markets, UL certification is also gaining increasing importance in the German market. Most manufacturers rely on an independent authority for certification of products in accordance with UL. This can entail a considerable delay in the development and production process.
The laboratory and testing devices are subject to an annual system audit to check for compliance with the required conditions and the functionality of the devices. Therefore, adherence to all specifications of the testing can be assured in the long term.