Siemens SIMATIC TI525 Hardware And Installation Manual page 25

If you, or your company, use any programmable
controllers with equipment which requires an
operator or attendant, you should be aware that
this potential safety hazard exists and take
appropriate precautions. Although the specific
design
application, the following precautions generally
apply to installation of solid-state programmable
control devices.
These precautions conform to the guidelines for
installation of Programmable Controllers as
recommended
Programmable Control Standards.
Hardware and Installation User Manual
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PRE-INSTALLATION
steps depend on
in the NEMA
2-2
your particular
ICS 3–304