Installation MS20/MS30
Release
11
07/2013
5
Safety instructions
Certified usage
Only use the device for application cases that are described in the
Hirschmann product information, including this manual. Only operate the
device according to the technical specifications.
Supply voltage
For safety reasons the devices have been designed to operate at low
voltages. Thus, they may only be connected to the supply voltage
connections and to the signal contact with SELV circuits with the voltage
restrictions in accordance with IEC/EN 60950-1.
The supply voltage is electrically isolated from the housing.
Use undamaged parts.
Relevant for North America:
The device may only be connected to a Class 2 supply voltage that
fulfills the requirements of the National Electrical Code, Table 11(b). If
the voltage is being supplied redundantly (two different voltage
sources), the combined supply voltages must fulfill the requirements of
the National Electrical Code, Table 11(b).
Relevant for North America: For use in Class 2 circuits.
Only use copper wire/conductors of class 1, 75 °C (167 °F).
Relevant for North America for modules certified for Hazardous
Locations:
This equipment is suitable for use in Class 1, Division 2, Groups A, B,
C and D or Non-Hazardous (unclassified) locations only.
Make sure that peripheral devices are suitable for the application
environment. The wiring for the voltage supply and for the inputs and
outputs (I/O) must adhere to the wiring regulations for Class 1,
Division 2 [article 501(b) of the National Electrical Code (USA),
NFPA 70] and to the applicable statutory regulations.
Note: Observe the control drawing (document number
000160011DNR) on the following pages.
Relevant for Europe
for devices installed in explosive gas atmospheres according to ATEX
directive 94/9 EC:
Make sure that the device has the following label:
II 3G (... followed by additional specifications).
Note: Observe the control drawing (document number
000160011DNR) on the following pages.
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