NORDAC FLEX (SK 200E ... SK 235E) – Brief instructions for Frequency Inverters
42 BU 0240 en-US-4920
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2.4.1.2 Options for ATEX zone 22, category 3D
In order to ensure that the device is ATEX-compliant, its optional modules must also be approved for
potentially explosive areas. Optional modules that are not in the following list may not be used in an
ATEX zone 22 3D. This also includes connectors and switches that may also not be used in such an
environment.
Control and parameterization units are basically not approved for operation in
ATEX - zone 22 3D. They may therefore only be used for commissioning or maintenance purposes
and if it has been ensured that there is no explosive dust atmosphere.
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Designation Material number Use permissible
SK BRI4-1-400-100 275272012 Yes
SK CU4-DEV(-C) 275271002 / (275271502) Yes
SK CU4-POL(-C) 275271018 / (275271518) Yes
SK TI4-12-Adapter kit_63_71-EX
SK TI4-3-Adapter kit_80_112-EX
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