Technical data
Table Of Contents
- 1 Important Notes
- 2 I/O Modules
- 3 Use in Hazardous Environments
- 3.1 Marking Configuration Examples
- 3.2 Installation Regulations
- 3.2.1 Special Conditions for Safe Operation of the ATEX and IEC Ex (acc. DEMKO 08 ATEX 142851X and IECEx PTB 07.0064)
- 3.2.2 Special conditions for safe use (ATEX Certificate TÜV 07 ATEX 554086 X)
- 3.2.3 Special conditions for safe use (IEC-Ex Certificate TUN 09.0001 X)
- 3.2.4 Special conditions for safe use (ATEX Certificate DEKRA 11ATEX0203 X)
- 3.2.5 ANSI/ISA 12.12.01

8 • Content
Safety Information
WAGO-I/O-SYSTEM 750
I/O Modules
1.4 Safety Information
When connecting the device to your installation and during operation, the
following safety notes must be observed:
Danger
The WAGO-I/O-SYSTEM 750 and its components are an open system. It
must only be assembled in housings, cabinets or in electrical operation rooms.
Access is only permitted via a key or tool to authorized qualified personnel.
Danger
All power sources to the device must always be switched off before carrying
out any installation, repair or maintenance work.
Warning
Replace defective or damaged device/module (e.g. in the event of deformed
contacts), as the functionality of field bus station in question can no longer be
ensured on a long-term basis.
Warning
The components are not resistant against materials having seeping and
insulating properties. Belonging to this group of materials is: e.g. aerosols,
silicones, triglycerides (found in some hand creams). If it cannot be ruled out
that these materials appear in the component environment, then the
components must be installed in an enclosure that is resistant against the
above mentioned materials. Clean tools and materials are generally required
to operate the device/module.
Warning
Soiled contacts must be cleaned using oil-free compressed air or with ethyl
alcohol and leather cloths.
Warning
Do not use contact sprays, which could possibly impair the functioning of the
contact area.
Warning
Avoid reverse polarity of data and power lines, as this may damage the
devices.
ESD (Electrostatic Discharge)
The devices are equipped with electronic components that may be destroyed
by electrostatic discharge when touched.










