4.5.4.2 Connecting the PE busbar
A connecting jumper for the PE busbar is supplied with every cabinet.
Note
The installation of the transport units as well as the connection of the transport units with each
other must have been completed.
Establishing the connection
① Nut M12
② Connecting jumper
③ Screw with washer
Figure 4-4 Connecting the PE busbar
1.
Allow unimpeded access to the PE busbars in the cabinet units. If required, remove the
protective covers while carrying out any installation work.
2. Release the M12 nut ① of the PE busbar at the first cabinet.
3. Remove the nut ①, the washer and the screw ③.
4. Release the M12 nut of the PE busbar at the second cabinet.
5. Remove the nut, washer and screw.
6. Place the connection jumper ② at the rear of the PE busbars of the cabinets to be
connected.
7. Insert the screws from the front into the grounding lugs of the PE busbar.
8. Reattach the washers and nuts.
9. Tighten the nut with a torque of 50 Nm.
See also
Connecting to the foundation (Page 67)
Connecting cabinets (Page 69)
Installation
4.5 Connections of transport units
Applications for Cabinet Modules, liquid cooled
Operating Instructions, 04/2015, A5E35974555A 73
Siemens Drives & PLCs
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