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Safety notices
To prevent injury, read the manual before use.
Read the safety notices
Note the following safety notices. These relate to the entire working life of the device.
You should also read the safety notices relating to handling in the individual sections,
particularly in the sections "Installation" and "Connecting up".
Hot surfaces
Electric devices have hot surfaces. Do not touch these surfaces. They could cause severe
burns.
• Allow the device to cool down before starting any work on it.
Safety notices on use in hazardous areas
General safety notices relating to protection against explosion
EXPLOSION HAZARD
Do not open the device when the supply voltage is turned on.
At an ambient temperature of more than 60 °C, use heat-resistant cables designed for an
ambient temperature at least 20 °C higher. The cable entries used on the enclosure must
comply with the IP degree of protection required by EN IEC / IEC 60079-0, GB 3836.1.
Safety instructions for use in hazardous locations according to UL/FM HazLoc
If you use the device under UL or FM HazLoc conditions, you must also adhere to the
following safety instructions in addition to the general safety instructions for protection
against explosion:
SCALANCE MUM856-1
Operating Instructions, 08/2021, C79000-G8976-C628-02
CAUTION
WARNING
WARNING
WARNING
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