162 Use in Hazardous Environments WAGO-I/O-SYSTEM 750
750-489 4AI RTD/TC/Strain Gauge Ex i
Manual
Version 1.1.0, valid from FW Version 02
Figure 47: Text Detail – Marking Example for Approved Ex i I/O Modules According to CEC 18
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Table 162: Description of Marking Example for Approved Ex i I/O Modules According to CEC 18
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Explosion protection mark
Type of protection and equipment protection
level (EPL): Associated apparatus with intrinsic
safety circuits for use in Zone 20
Equipment protection level (EPL)
Symbol used to denote specific conditions of use
Explosion protection mark
Type of protection and equipment protection
level (EPL): Associated apparatus with intrinsic
safety circuits for use in Zone 0
Equipment protection level (EPL)
Symbol used to denote specific conditions of use