Siemens SCALANCE XR524-8C Operating Instructions Manual page 64

Connecting
5.8 Functional ground
Connecting up functional ground
SCALANCE XR552-12M and SCALANCE XR528-6M
③
Grounding terminal with cable
④
Washer
⑤
Spring washer
⑥
Nut
Follow the steps below to connect the functional ground:
1. Put the parts
2. Tighten the nut
64
SCALANCE XR524-8C
③ ④ ⑤
, and together on the grounding bolt as shown in the drawing.
⑥
with a maximum tightening torque of 1.5 Nm.
Operating Instructions, 05/2014, A5E03275845-05
SCALANCE XR-500