Siemens SIMATIC ET 200SP Manual page 14

Safety instructions
Failure to observe this information may result in death, severe injury, and serious property
damage.
The equipment is designed for operation with Safety Extra-Low Voltage (SELV) by a
Limited Power Source (LPS).
This means that only SELV / LPS complying with IEC 60950-1, EN 60950-1, VDE 0805-1
must be connected to the power supply terminals.
The power supply unit for the equipment power supply must comply with NEC Class 2, as
described by the National Electrical Code (r) (ANSI / NFPA 70).
Failure to observe this information may result in death, severe injury, and serious property
damage.
Provisions shall be made to prevent the rated voltage from being exceeded by transient
disturbances of more than 40 %. This criteria is fulfilled if supples are derived from SELV
(Safety Extra-Low Voltage) only.
Failure to observe this information may result in property damage and bodily injury
This equipment is suitable for use in Class I, Division 2, Groups A, B, C, and D or non-
hazardous locations only.
Failure to observe this information may result in property damage and bodily injury
This equipment is suitable for use in Class I, Zone 2, Group IIC or non-hazardous locations
only.
14
WARNING
WARNING
CAUTION
CAUTION
AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
Manual, 07/2017, A5E02655262020A/RS-AD/004