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What does an ``EX `` suffix mean on a XB4 push button catalog number?

Published date: 19 June 2020

Trying to identify form EX on XB4, 22mm buttons.

Product Line:
Push Buttons and Operator Interface

22mm Operators

Form EX indicates a product that meets ATEX requirements (for an explosive dust atmosphere per IEC Directives 99/92/EC and 94/9/EC).  These products have not been commercialized or sold in the USA.

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