50
Use in Hazardous Environments
WAGO-I/O-SYSTEM 750
750-469 2AI Thermocouple
Manual
Version 1.1.0
7.1.2
Marking for America According to NEC 500
Figure 17: Side Marking Example for I/O Modules According to NEC 500
Figure 18: Text Detail – Marking Example for Approved I/O Modules According to NEC 500
Table 35: Description of Marking Example for Approved I/O Modules According to NEC 500
Marking
Description
CL I
Explosion protection group (condition of use
category)
DIV 2
Area of application
Grp. ABCD
Explosion group (gas group)
Op temp code T4
Temperature class