Figure 18: Text Detail - Marking Example For Approved Ex I I/O Modules; Table 35: Description Of Marking Example For Approved Ex I I/O Modules - WAGO 750-637/040-001 Manual

48 Use in Hazardous Environments
Figure 18: Text Detail – Marking Example for Approved Ex i I/O Modules According to CEC 18
attachment J
Table 35: 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 1.1.0
750-637/040-001 Inc. Encoder 24 VDC Diff 32Bit XTR
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 XTR