
Connecting up, installation, commissioning
3.1 Important notes on using the device
RTU303xC
64
Operating Instructions, 06/2019, C79000-G8976-C382-06
WARNING
DIN rail
In the ATEX and IECEx area of application only the Siemens DIN rail 6ES5 710-8MA11
may be used to mount the RTU and the battery modules.
3.1.3
Instructions for use in hazardous areas according to FM and UL HazLoc
WARNING
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.
WARNING
If the cable or conduit entry point exceeds 70 °C or the branching point of conductors
exceeds 80 °C, special precautions must be taken. If the equipment is operated in an air
ambient in excess of 70 °C, only use cables with admitted maximum operating temperature
of at least 85 °C.
WARNING
If a device is operated in an ambient temperature of more than 60 °C, the temperature of
the device housing may be higher than 70 °C. The device must therefore be installed so
that it is only accessible to service personnel or users that are aware of the reason for
restricted access and the required safety measures at an ambient temperature higher than
60 °C.
WARNING
Wall mounting outside of the control cabinet or housing does not fulfill the requirements of
the FM approval.