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Siemens ET B1 · 10/2008
Your Ticket to the World
For European exporters who supply electrical switchgear
assemblies and equipment for machines to the USA, it is essential
that devices are certified as UL listed or UL recognized - like
some of our BETA low-voltage circuit protection devices.
Two organizations – for North America, the "American National
Standards Institute" (ANSI), for the rest of the world, the
"
International Electrical Commission" (IEC) – prepare and
publish the pertinent standards for the use of electrical energy
and devices.
For the ANSI-influenced area, the UL regulations apply (published
by Underwriters Laboratories). In other regions, the IEC
regulations apply, which are published in Europe as European
standards (EN).
UL (Underwriters Laboratories Inc.) was founded in 1894 and is
a product safety certification organization for the United States.
The UL listed and UL recognizedmark on devices confirms that
the products are UL-approved for their respective applications.
This is of particular importance to European exporters of electrical
switchgear assemblies for machines who export to the USA, as
their products will only be accepted if they meet the relevant
UL standards.
UL 508A "Standard for Industrial Control Panels" describes the
design of control cabinets and the implementation of integral
components with reference to other pertinent UL standards
where applicable. It therefore represents the basic standard
for all electrical systems used in North America.
Countless low-voltage controls from the BETA product range
comply with UL standards and are therefore suitable for
implementation worldwide in both IEC/EN and UL applications
within the framework of their specified use.
© Siemens AG 2008