Installation, wiring, commissioning
3.1 Important notes on using the device
SIMATIC CC7
Operating Instructions, 10/2019, C79000-G8976-C503-02
33
WARNING
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).
WARNING
LAN connection (Local Area Network)
A LAN or LAN segment with all the interconnected devices should be contained completely
in a single low voltage power distribution system in a building. The LAN is designed either
for “Environment A” according to IEEE802.3 or "Environment 0" according to IEC TR
62102.
Do not connect any electrical connectors directly to the telephone network (Telephone
Network Voltage) or a WAN (Wide Area Network).
WARNING
EXPLOSION HAZARD
Do not press the SET button if there is a potentially explosive atmosphere.
3.1.3
General notices on use in hazardous areas according to UL HazLoc / 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
EXPLOSION HAZARD
You may only connect or disconnect cables carrying electricity when the power supply is
switched off or when the device is in an area without inflammable gas concentrations.
WARNING
Do not remove or replace while circuit is live when a flammable or combustible atmosphere
is present.
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Страница 136: ...Dimension drawings SIMATIC CC7 136 Operating Instructions 10 2019 C79000 G8976 C503 02 Figure 8 2 Side view ...
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