Siemens SIMATIC ET 200S Manual page 206

General Technical Specifications
7.5.2 Use of the ET 200S 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 200S
distributed I/O device in a hazardous area.
Further Information
You will find further information on the ET 200S and the various modules in the
manual.
Production Location
Siemens AG, Bereich A&D
Werner-von-Siemens-Straße 50
92224 Amberg
Germany
Certification
Test number:
Note
Modules with
ET 200S distributed I/O devices belonging to equipment category 3.
7-14
Explosion Hazard
Explosive gas atmosphere occurs
only seldom and for a short time
No
II 3 G EEx nA II T4 .. T5
KEMA 01ATEX1238 X
II 3 G EEx nA II T4 .. T5 certification can only be installed 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
ET 200S Distributed I/O System
EWA-4NEB780602402-09