Product information 19/48
RE29583-XL-B/09.20, 4WS2EM 10...XL..., BoschRexrothAG
5.1.2 Explosion protection marking
The user/machine end-user has to classify potentially explosive atmospheres
according to EU directive1999/92/EC into zones. The table below lists zones with
device groups and categories.
The valve may only be used in the areas and zones which correspond to the device
group and category. During use, also observe the other information on explosion
protection in "Datasheet29583-XL".
Table 6: Device groups and categories
Zones, device groups
and categories
Device group
according to
2014/34/EU
Category
accordingto
2014/34/EU
Area of application, properties (excerpt from the directives) Usable in zone
accordingto
1999/92/EC
I M1 Firedamp areas (=device groupI), i.e. underground parts of mines and their
overground systems. In case of an explosive atmosphere, further operation
is possible.
Very high safety level.
-
I M2 Firedamp areas (=device groupI), i.e. underground parts of mines and their
overground systems. In case of an explosive atmosphere, it must be possible to
deactivate the device.
High safety level.
-
II 1G Potentially explosive atmospheres in which explosive gases, mists or vapors
(=device groupII) occur permanently or for along time or frequently.
Corresponds to zone 0 accordingto Directive1999/92/EC.
Very high safety level.
0, 1, 2
II 2G Potentially explosive atmospheres in which explosive gases, mists or vapors
(=device groupII) are occasionally present.
Corresponds to zone 1 accordingto Directive1999/92/EC.
High safety level.
1, 2
II 3G Potentially explosive atmospheres in which explosive gases, mists or vapors
(=device groupII) do not normally occur or only rarely or for ashort time.
Corresponds to zone 2 accordingto Directive1999/92/EC.
Normal safety level.
2
II 1D Potentially explosive atmospheres in which explosive dust/air mixtures
(=device groupII) are continually, long-term or often present.
Corresponds to zone 20 accordingto Directive1999/92/EC.
Very high safety level.
20, 21, 22
II 2D Potentially explosive atmospheres in which explosive dust/air mixtures
(=device groupII) are occasionally present.
Corresponds to zone 21 accordingto Directive1999/92/EC.
High safety level.
21, 22
II 3D Potentially explosive atmospheres in which an explosive atmosphere due to stirred
dust (=device groupII) is normally not present or occurs only rarely or only for a
short period of time.
Corresponds to zone 22 accordingto Directive1999/92/EC.
Normal safety level.
22