Siemens SIMATIC ET 200M Manual page 185

Technical Specifications
8.5.2 Use of the ET 200M / S7-300 in a Zone 2
Hazardous Area
Zone 2
Hazardous areas are divided up into zones. The zones are distinguished according
to the probability of the existence of an explosive atmosphere.
Zone
2
Safe area
Below you will find important information on the installation of the ET 200M
distributed I/O device and the SIMATIC S7-300 in a hazardous area.
Further Information
You will find further information on the ET 200M and the various S7-300 modules in
the manual.
Production Location
Siemens AG, Bereich A&D
Werner-von-Siemens-Straße 50
92224 Amberg
Germany
Certification
II 3 G
Test number:
Note
Modules with
SIMATIC S7-300/ET 200M automation systems belonging to equipment
category 3.
Distributed I/O Device ET 200M
EWA-4NEB780600602-06
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Explosion Hazard
Explosive gas atmosphere
occurs only seldom and for a
short time
No
EEx nA II T3 .. T6
KEMA 02ATEX1096 X
II 3 G EEx nA II T3 .. T6 certification can only be used in
Example
Areas around flange joints with flat
gaskets in pipes in enclosed spaces
• Outside zone 2
• Standard distributed I/O applications
to EN 50021 : 1999