WAGO-I/O-SYSTEM 750
Use in Hazardous Environments
37
750-402 4DI 24V DC 3.0ms
Manual
Version 1.1.0
Table 14: Description of marking example for approved Ex i I/O modules according to ATEX and
IECEx
Gases
II
Equipment group: All except mining
3(1)G
Category 3 (Zone 2) equipment containing a safety
device for a category 1 (Zone 0) equipment
3(2)G
Category 3 (Zone 2) equipment containing a safety
device for a category 2 (Zone 1) equipment
Ex
Explosion protection mark
nA Gc
Type of protection and equipment protection level
(EPL): Non-sparking equipment
[ia Ga]
Type of protection and equipment protection level
(EPL): associated apparatus with intrinsic safety
circuits for use in Zone 0
[ia Gb]
Type of protection and equipment protection level
(EPL): associated apparatus with intrinsic safety
circuits for use in Zone 1
IIC
Explosion group of gas and vapours
T4
Temperature class: Max. surface temperature 135°C
Pos : 80.9 /Dokumentation allgemei n/ Glieder ungs elemente/---Seit enwechs el--- @ 3\ mod_1221108045078_0.doc x @ 21810 @ @ 1
