UL certificates from Schalksmühle

The test laboratory of the enclosure specialist Spelsberg has been certified by UL. As a result, Spelsberg is now able to conduct these coveted tests in-house.

For years now, Spelsberg has therefore been running its own in-house test laboratory, and it is always equipped to state-of-the-art standards. There is scope here for checking all relevant standards for enclosures and for electrical engineering products made by Spelsberg.

This laboratory has now been certified by UL as fully compliant with the Client Test Data Program (CTDP), entitling it to conduct tests for the UL certification of products on behalf of UL. Gaining this qualification was by no means an accident; for over a decade, Spelsberg has been conducting tests with regular audits by UL, and has obtained the corresponding UL kitemarks (compliance symbols) for Spelsberg products.

This recent certification is the result of years of collaboration based on mutual confidence and offers our Product Development staff a decisive advantage in terms of time because inspection planning can be adapted at very short notice by Design, Tool-Building and Test Laboratory staff, without being reliant on the availability of external laboratories. This has a positive impact, particularly on individually developed special solutions where time is a particularly key factor.

Always bear this in mind: It is not sufficient, when manufacturing a UL-compliant device, for its constituent elements to themselves be satisfying UL specifications. Instead, the complete system must also be tested in accordance with prevailing standards in the context of its field of application. Here is another area where Spelsberg can deliver valuable services, since its portfolio of products not only includes empty enclosures: it also includes complete turnkey systems.

The cooperative from of collaboration between UL and Spelsberg, especially in the field of TK and TG empty enclosures laid the groundwork for rapid implementation of UL50/CSA22.2 certification for the new AK range of small distributors with AIR ventilation elements. At the same time, the small distributor series was also certified in accordance with international standards IEC/EN 62208 and IEC/EN 61439. As a consequence, with immediate effect, this series of small distributors with integrated ventilation elements is entitled to display the coveted UL-EU symbol.

AK small distributors with air ventilation element holding IEC and UL certification equipped for use in global markets

During development of the new series of small distributors with their standard AIR ventilation element to prevent condensation, the IEC as well as the UL standards were taken into account. For that reason, materials were selected that are resistant to UV and to adverse weather conditions. Sealing systems optimised for the 'Raintest' UL inspection and retaining points provided outside the sealing area on the enclosure.

With their sizes AK14 (1-row) up to AK 56 (4-row), Spelsberg can offer an appropriate size for almost every application. The side extension of the housing via the Kombiset provides scope for creating larger systems. The screwless PE/N terminal strip, pre-installed wiring guides and a comprehensive range of accessories all come as standard at Spelsberg in its range of high-quality small distributors. These also make life easier for the installer as does the T-rail spacing of 150 mm and the ability to remove the T-rails without tools to insert wiring into the enclosure.

The AK-F variants of the small distributors are ideal for customer-specific variants with their open face ends and flanges.

Compared to standard housings, the AK-Plus and AK-F-Plus housings offer additional space for connecting up terminal strips or controllers.

In total, 15 housing variants are available.

All housing variants can also now be fitted with the UL-EU logo that indicates certifications in accordance with IEC EN 61439-2 and -3 as well as IEC TS 61439-7. The AK is therefore equipped for all manner of applications - either as a VDE-certified 'housing for installation devices for household and similar fixed-location electrical installations' in acc. with EN 60670-24 or as UL-EU-certified 'low voltage switchgear combinations for interior and open-air applications' as defined in IEC EN 61439.

For the US-American and Canadian market, cULus-certified variants of this small distributor are available.

UL certificates from Schalksmühle

The test laboratory of the enclosure specialist Spelsberg has been certified by UL. As a result, Spelsberg is now able to conduct these coveted tests in-house.