WAGO-I/O-SYSTEM 750 XTR
Use in Hazardous Environments 259
750-352/040-000 FC ETHERNET G3 XTR
Manual
Version 1.3.0
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Figure 65: Text Detail – Marking Example for Approved Ex i I/O Modules According to CEC 18
attachment J
Table 309: Description of Marking Example for Approved Ex i I/O Modules According to CEC 18
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Marking
Description
Dust
Ex
Explosion protection mark
nA
Type of protection
[ia IIIC]
Type of protection and equipment protection
level (EPL): Associated apparatus with intrinsic
safety circuits for use in Zone 20
IIC
Group
T4
Temperature class
Gc
Equipment protection level (EPL)
X
Symbol used to denote specific conditions of use
Gases
Ex
Explosion protection mark
nA
Type of protection
[ia Ga]
Type of protection and equipment protection
level (EPL): Associated apparatus with intrinsic
safety circuits for use in Zone 0
IIC
Group
T4
Temperature class
Gc
Equipment protection level (EPL)
X
Symbol used to denote specific conditions of use
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