Notices Regarding Use In Hazardous Areas According To Ul Hazloc; Notices On Use In Hazardous Areas According To Fm - Siemens SIMATIC NET TeleControl S7-1200 CP 1243-1 Operating Instructions Manual

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).
3.1.3

Notices regarding use in hazardous areas according to UL HazLoc

EXPLOSION HAZARD
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.
3.1.4

Notices on use in hazardous areas according to FM

EXPLOSION HAZARD
Do not connect or disconnect while the circuit is live or unless the area is known to be free
of ignitible concentrations.
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.
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.
CP 1243-1
Operating Instructions, 12/2016, C79000-G8976-C365-02
WARNING
WARNING
WARNING
WARNING
Installation, connecting up, commissioning
3.1 Important notes on using the device
29