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3. Lever the securing bar down using a screwdriver as far as it will go.
4. Pull the device away from the bottom of the DIN rail with the bar pulled.
4.4
Installation on a standard S7-300 rail
Installing on an S7-300 standard rail
Note
Note the position of the securing bar, see also section "Dimension drawings SCALANCE XC-
200 (Page 87)".
When supplied, the securing bar is in the wall mounting position. To change the position of
the securing bar, refer to the section "Changing the position of the securing bar (Page 46)".
Figure 4-2
Securing bar in the wall mounting position (as supplied).
To install the device on an S7-300 standard rail, follow the steps below:
1. Place the second housing guide of the device on the top edge of the standard rail.
2. Swing the device down towards the back against the mounting rail.
3. Loosen the knurled screw with your hand or a screwdriver. The spring mounted securing
bar locks in place.
4. When you tighten the knurled screw. you cannot release the securing bar (torque 0.5
Nm). The device is additionally fixed.
5. Connect the electrical connecting cables, refer to the section "Connecting up (Page 49)".
SCALANCE XC-200
Operating Instructions, 04/2018, C79000-G8976-C442-04
S7-300 mounting rail installation with the securing bar in the wall mounting position.
4.4 Installation on a standard S7-300 rail
Mounting
43
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