6
MS20/MS30 MS20/MS30
Release 10 07/2012
Certified usage
The device may only be employed for the purposes described in the
catalog and technical description, and only in conjunction with external
devices and components recommended or
approved by the manufacturer. The product can only be operated cor-
rectly and safely if it is transported, stored, installed and assembled pro-
perly and correctly. Furthermore, it must be operated and serviced
carefully.
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 supply voltage of class 2 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: 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.
