PULS UK Gains ATEX Approval for ML Series Power Supplies
25 April 2012
Leading DIN-rail power supply manufacturer PULS UK has been granted ATEX approval for its ML series of power supplies, allowing them to be used in certain hazardous environments.
The single phase units have an output range from 5Vdc to 28Vdc and a power range from 15W to 100W, and will be available on special order for projects.
The units have been tested to EN 60079 – 15 and are approved for use in Class 1 Zone 2 Category 3G explosive atmospheres. PULS says no electrical changes were necessary to achieve the approval and that the Standard had been met in essence by dual conformal coating the internal components of the units.
An explosive atmosphere is created when dust, mist or gases become mixed with the air and produce a flammable substance. Many industrial environments may contain, or have the potential to produce, an explosive atmosphere. Examples include places where production activities create or release flammable gases or vapour, such as paint spraying, or in factories handling fine organic dusts such as grain flour or wood.
ATEX, which derives its name from the French 'ATmosphère EXplosif' is the framework for controlling explosive atmospheres and the standards of equipment and protective systems used in them.
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