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5.4
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 XCM-300
(Page 91)".
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 48)".
Figure 5-4
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 53)".
Removal
To remove the device from a standard rail, follow the steps below:
1. Disconnect all connected cables.
2. If necessary, loosen the knurled screw with your hand or a screwdriver.
SCALANCE XCH-300/XCM-300
Equipment Manual, 10/2022, C79000-G8976-C585-02
S7-300 mounting rail installation with the securing bar in the wall mounting position.
installing and removing
5.4 Installation on a standard S7-300 rail
45
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