General Technical Specifications
Programmable Logic Controllers S7-300 Module Data
1-20 A5E00105505-03
1.9.2 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 Explosion Hazard Example
2 Explosive gas atmosphere
occurs only seldom and for a
short time
Areas around flange joints with flat
gaskets in pipes in enclosed spaces
Safe area No • Outside zone 2
• Standard distributed I/O applications
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 EEx nA II T3 .. T6 to EN 50021 : 1999
Test number: KEMA 02ATEX1096 X
Note
Modules with
II 3 G EEx nA II T3 .. T6 certification can only be used in
SIMATIC S7-300/ET 200M automation systems belonging to equipment
category 3.
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