Technical data
10 •  Important Notes 
 Safety Information 
 WAGO-I/O-SYSTEM 750 
BACnet/IP Controller 
1.4 Safety Information 
When connecting the device to your installation and during operation, the fol-
lowing 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 per-
sonnel. 
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 insu-
lating properties. Belonging to this group of materials is: e.g. aerosols, sili-
cones, triglycerides (found in some hand creams). If it cannot be ruled out 
that these materials appear in the component environment, then the compo-
nents must be installed in an enclosure that is resistant against the above men-
tioned 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 de-
vices. 
ESD (Electrostatic Discharge) 
The devices are equipped with electronic components that may be destroyed 
by electrostatic discharge when touched. 










