44
Connect Devices
WAGO-I/O-SYSTEM 750
750-484 2 AI 4-20 mA HART Ex i
Manual
V 1.2.0 HW-Version 04, SW-Version 03
Figure 11: Supply Principle Ex i
Figure 12: Overvoltage Categories
Table 30: Legend for Figure “Overvoltage Categories”
Pos. Explanation
1
Fieldbus coupler/controller
2
Filter module
3
Ex i supply module
4
Ex i I/O Modules
5
End module
Both overvoltage categories and rated surge voltage acc. to EN 60664-1:2007 are
listed in the appendix.