
General specifications
1.1 Standards, certificates and approvals
S7-400 Automation System Module Data
28 Reference Manual, Edition 09/2009, A5E00850736-06
Safety requirements for installation
The S7-400 programmable controllers are "open type" equipment to the IEC 61131-2
standard and therefore adhere to the EU directive 2006/95/EC "Low-Voltage Directive" and
are UL/CSA certified as such.
To fulfill requirements for safe operation with regard to mechanical stability, flame
retardation, stability, and shock-hazard protection, the following alternative types of
installation are specified:
● Installation in a suitable cabinet
● Installation in a suitable housing
● Installation in a suitably equipped, enclosed operating area.
Comentários a estes Manuais