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ATEX Series

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Products belonging to TER Atex series are suitable for hazardous, potentially explosive areas.
Hazardous areas are places where, under certain conditions, explosive atmosphere may form. An explosive atmosphere is a mixture of air and gases, vapours, fumes or combustible dust, whose combustion spreads rapidly (explosion) after ignition at atmospheric pressure. Users are responsible for carrying out a classification of hazardous areas, as set out in European Directive 1999/92/EC. International standards IEC 61241-10 provide criteria for classification of hazardous areas depending on their chemical nature, physical characteristics and quantity of substances used, as well as on the frequency and length of time when an explosive mixture may occur.


Zones with presences of gas
Zone 0 - Areas in which an explosive atmosphere is present continuously or for long periods of time.
Zone 1 - Areas in which an explosive atmosphere is likely to occur under normal conditions.
Zone 2 - Areas in which an explosive atmosphere is not likely to occur and, if it does, it is only for a short period of time.

Zones with presences of dust
Zone 20 - Areas in which an explosive atmosphere is present continuously or for long periods of time.
Zone 21 - Areas in which an explosive atmosphere is likely to occur under normal conditions.
Zone 22 - Areas in which an explosive atmosphere is not likely to occur and, if it does, it is only for a short period of time.
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