Connecting up
6.1 Lightning protection, power supply and grounding
SCALANCE W788-x / W748-1
30 Operating Instructions, 06/2016, A5E03678333-10
General notes on use according to ATEX and IECEx
Take measures to prevent transient voltage surges of more than 40% of the rated voltage.
This is the case if you only operate devices with SELV (safety extra-low voltage).
General notes on use in hazardous areas according to UL-HazLoc
DO NOT DISCONNECT WHILE CIRCUIT IS LIVE UNLESS AREA IS KNOWN TO BE
NON-HAZARDOUS.
This equipment is suitable for use in Class I, Division 2, Groups A, B, C and D or non-
hazardous locations only.
This equipment is suitable for use in Class I, Zone 2, Group IIC or non-hazardous locations
only.
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