Connecting Functional Ground - Siemens SCALANCE XR-300M Compact Operating Instructions

6.4

Connecting functional ground

Grounding options
Grounding (functional ground) is via the mounting bracket on the device or via the bolts on the
rear of the device.
Position
The connector for the grounding cable is in the center of the rear panel of the device, see
section "Dimension drawings (Page 65)".
Grounding is via a screw-in or a pressed in grounding bolt, see section "Product overview
(Page 17)".
Fitting screw in grounding bolts
①
②
To fit the screw-in grounding bolts, follow the steps below:
1. Thread the toothed washer
2. Screw in the grounding bolt
Connecting up functional ground
Screw-in grounding bolts
3
4
③
Grounding terminal with cable
SCALANCE XR-300M
Compact Operating Instructions, 11/2019, A5E02661171-15
1
2
Toothed washer
Grounding bolt
5
6
①
onto the bolt.
②
with a maximum tightening torque of 2 Nm.
Pressed in grounding bolts
Connecting up
6.4 Connecting functional ground
3
4
5
6
45