WAGO 750-455 User Manual page 38

38 Use in Hazardous Environments
Table 18: Description of Marking Example for Approved Ex i I/O Modules According to ATEX and
IECEx
Gases
II
3(1)G
3(2)G
Ex
nA Gc
[ia Ga]
[ia Gb]
IIC
T4
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Equipment group: All except mining
Category 3 (Zone 2) equipment containing a safety
device for a category 1 (Zone 0) equipment
Category 3 (Zone 2) equipment containing a safety
device for a category 2 (Zone 1) equipment
Explosion protection mark
Type of protection and equipment protection level
(EPL): Non-sparking equipment
Type of protection and equipment protection level
(EPL): associated apparatus with intrinsic safety
circuits for use in Zone 0
Type of protection and equipment protection level
(EPL): associated apparatus with intrinsic safety
circuits for use in Zone 1
Explosion group of gas and vapours
Temperature class: Max. surface temperature 135°C
WAGO-I/O-SYSTEM 750
750-455 4AI 4-20mA S.E.
Manual
Version 1.2.0