Table 57: Description Of Marking Example For Approved Ex I I/O Modules - WAGO I/O-SYSTEM 750 Manual
2ai 4-20ma hart ex i 2-channel analog input; hart; intrinsically safe, 2ai 4-20ma hart ne43 ex i 2-channel analog input; hart; namur ne43; intrinsically safe
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Use in Hazardous Environments
Figure 43: Text Detail – Marking Example for Approved Ex i I/O Modules According to CEC 18
attachment J
Table 57: Description of Marking Example for Approved Ex i I/O Modules According to CEC 18
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Marking
Dust
Ex
nA
[ia IIIC]
IIC
T4
Gc
X
Gases
Ex
nA
[ia Ga]
IIC
T4
Gc
X
Manual
Version 1.4.0
750-484 2AI 4-20mA HART Ex i
Description
Explosion protection mark
Type of protection
Type of protection and equipment protection
level (EPL): Associated apparatus with intrinsic
safety circuits for use in Zone 20
Group
Temperature class
Equipment protection level (EPL)
Symbol used to denote specific conditions of use
Explosion protection mark
Type of protection
Type of protection and equipment protection
level (EPL): Associated apparatus with intrinsic
safety circuits for use in Zone 0
Group
Temperature class
Equipment protection level (EPL)
Symbol used to denote specific conditions of use
WAGO-I/O-SYSTEM 750
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