Safety Notes; Important Notes On Using The Scalance X-300 Product Family - Siemens SIMATIC NET SCALANCE X-300M Compact Operating Instructions

Safety notes

2.1

Important notes on using the SCALANCE X-300 product family

Safety notices on the use of the device
The following safety notices must be adhered to when setting up and operating the device
and during all associated work such as installation, connecting up, replacing or opening the
device.
General information
Safety extra low voltage
The equipment is designed for operation with Safety Extra-Low Voltage (SELV) by a
Limited Power Source (LPS). (This does not apply to 100 V...240 V devices.)
This means that only SELV / LPS (Limited Power Source) 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).
There is an additional requirement if devices are operated with a redundant power supply:
If the equipment is connected to a redundant power supply (two separate power supplies),
both must meet these requirements.
Opening the device
DO NOT OPEN WHEN ENERGIZED.
SCALANCE X-300M
Compact Operating Instructions, 10/2014, A5E02630801-06
WARNING
WARNING
2
9