Siemens SIMATIC NET SCALANCE XR-300 - Page 66

DC terminal block
When shipped, the connection for the 2-pin DC terminal block ① is covered. The DC terminal
block ships with the device. Protective grounding is provided by the grounding bolt ④.
You can recognize the type of power supply from the labeling on the device and the labeling
of the terminal block for the power supply of the switch.
Position



/
0
① DC terminal block
② Sliding cover
③ Screw for protection of the DC connection
④ Grounding bolt
Figure6-4 Position of the DC terminal blocks using a redundant 100 to 240VAC / 110 to 250 VDC
device version as an example
Contact Assignment
L+ 110 to 250V DC
M Ground
Using the DC terminal block

Figure6-5 Sliding cover - DC terminal block available
Connecting up
6.4Power supply 100 to 240VAC / 110 to 250VDC
SCALANCE XR-300
66 Operating Instructions, 03/2023, C79000-G8976-C586-02