10
4 Installation
4.1
Regulations and notes
4.2
Electrical connection
✱
Make connection according to the connection diagram
Fig. 6 Type STM-RW-2
Fig. 7 Type STM-RW-2/OS
❏
The electrical connection must only be carried out by properly qualified per-
sonnel.
❏
The choice of cable, the installation and the electrical connection must con-
form to the requirements of VDE 0100 “Regulations on the Installation of
Power Circuits with nominal voltages below 1000 V” or the appropriate
local regulations.
❏
If contact with live parts is possible while working on the unit, it must be
completely disconnected from the supply.
❏
Earth the instrument at the PE terminal with the protective earth conductor.
This cable must have at least the same cross-section as used for the supply
cables. Earth cables must be wired in a star configuration to a common
earth point that is connected to the protective earth of the supply. Do not
loop earth cables, i.e. do not run them from one instrument to another.
