Product information 21/48
RE 29115-XE-B/09.19, 4WRZ..7X/...XE...,
Bosch Rexroth AG
5.1.3 Explosion protection marking
The user/machine end-user has to classify potentially explosive areas according to EU directive
1999/92/EC into zones. In the following table, the corresponding zones for device groups and
categories are shown.
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
“Data sheet 29115-XE”
.
Table 7: Device groups and categories
Zones, device groups
and categories
Device group
according
to 2014/34/EU
Category
according to
2014/34/EU
Area of application, properties (excerpt from the directives)
Usable
in zone
according
to 1999/92/
EC
I
M1
Firedamp areas (= device group I), 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 group I), 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 group II) occur permanently or for a long time or frequently.
Corresponds to zone 0 according to directive 1999/92/EC.
Very high safety level.
0, 1, 2
II
2G
Potentially explosive areas where explosive gases, mists or vapors (= device group II) are
occasionally present.
Corresponds to zone 1 according to directive 1999/92/EC.
High safety level.
1, 2
II
3G
Potentially explosive atmospheres in which explosive gases, mists or vapors
(=device group II) do not normally occur or only rarely or for a short time.
Corresponds to zone 2 according to directive 1999/92/EC.
Normal safety level.
2
II
1D
Potentially explosive areas where explosive dust/air mixtures (= device group II) are
continually, long-term or often present.
Corresponds to zone 20 according to directive 1999/92/EC.
Very high safety level.
20, 21, 22
II
2D
Potentially explosive areas where explosive dust/air mixtures (= device group II) are
occasionally present.
Corresponds to zone 21 according to directive 1999/92/EC.
High safety level.
21, 22
II
3D
Potentially explosive areas where an explosive atmosphere due to stirred dust (= device
group II) is normally not present or occurs only rarely or short-time.
Corresponds to zone 22 according to directive 1999/92/EC.
Normal safety level.
22
