Installation, connection, commissioning, removal
3.1 Important notes on using the device
SIMATIC CP 4163-1
Operating Instructions, 12/2022, C79000-G8976-C588-01
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WARNING
Transient overvoltages
Take measures to prevent transient overvoltages of more than 40% of the rated voltage (or
more than 119 V). This is the case if you only operate devices with SELV (safety extra-low
voltage).
3.1.3
Notes on use in hazardous areas according to UL HazLoc and FM
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.
WARNING
When used in hazardous environments corresponding to Class I, Division 2 or Class I, Zone
2, the device must be installed in a cabinet or a suitable enclosure.
WARNING
If the device is installed in a cabinet, the inner temperature of the cabinet corresponds to
the ambient temperature of the device.
WARNING
EXPLOSION HAZARD
The equipment is intended to be installed within an ultimate enclosure. The inner service
temperature of the enclosure corresponds to the ambient temperature of the module. Use
installation wiring connections with admitted maximum operating temperature of at least
30 ºC higher than maximum ambient temperature.
WARNING
EXPLOSION HAZARD
Replacing components may impair suitability for Class 1, Division 2 or Zone 2.
