Explosive dust atmosphere safety switches and sensors
The Telemecanique Sensors Preventa line of hazardous dust atmosphere sensors are compliant with the global international standard IECEx and the latest European ATEX directive. By choosing a Telemecanique Sensors product for your hazardous dust machine application, you are choosing a sensor that had been tested and certified to perform in a manner compliant with these prominent, established safety standards.
The Preventa line of hazardous dust atmosphere sensors include a wide range of products including limit switches, pressure switches, safety switches, inductive sensors, and speed monitoring sensors.
The Zone System
ATEX (defined by AT: atmosphere and EX: explosive), IECEx and NEC 506 all use the same protection concept called the Zone system. The Zone defines the probability of the hazardous material (dust) being present in sufficient quantities to produce explosive or ignitable mixtures.
Zone 20 - An area where combustible dusts or ignitable fibers are suspended in the air continuously or for long periods of time.
Zone 21 - An area where combustible dusts or ignitable fibers are likely to be suspended in the air under normal operating conditions.
Zone 22 - An area where combustible dusts or ignitable fibers are, under normal operating conditions, not likely to be suspended in the air and do so for only a short period of time.
Telemecanique Sensors is proud to offer various ranges of Sensors that are ATEX and IECEx certified for use in all Zone 21 or Zone 22 applications.
Need a safety switch or rope pull switch to operate in a hazardous dust atmosphere location? Telemecanique Sensors has you covered!