![WAGO 750-489 Manual Download Page 113](http://html1.mh-extra.com/html/wago/750-489/750-489_manual_868450113.webp)
WAGO-I/O-SYSTEM 750
Connect Devices 113
750-489 4AI RTD/TC/Strain Gauge Ex i
Manual
Version 1.1.0, valid from FW Version 02
power supply module via the power contacts designed as blade contacts.
The Ex i I/O module (750-489) provides these potentials to subsequent I/O
modules via the power contacts designed as spring contacts.
Figure 15: Supply Principle Ex i
Table 131: Legend for Figure “Ex i Power Supply Concept”
No. Explanation
1 Fieldbus coupler/controller
2 Ex i supply module (750-606, 750-625/000-001)
*)
3 Ex i I/O modules
4 End module
U
S
System supply (24 VDC)
U
F1
Field supply (24 VDC)
U
F2
Field supply 2 (24 VDC)
*)
750-606 with electronic fuse and diagnostics
750-625/000-001 with electronic fuse, no diagnostics