WAGO-I/O-SYSTEM 750
Use in Hazardous Environments
39
750-438 2DI NAMUR Ex i
Manual
V 1.2.0
7.1.2
Marking for America according to NEC 500
Figure 16: Side marking example for I/O modules according to NEC 500
Figure 17: Text detail – Marking example for approved I/O modules according to NEC 500
Table 11: Description of marking example for approved I/O modules according to NEC 500
Printing on Text
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