Connecting Up; Safety When Connecting Up - Siemens SCALANCE X-200 Operating Instructions Manual

Connecting up

5.1

Safety when connecting up

Safety notices
When connecting up the device, keep to the safety notices listed below.
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).
If the equipment is connected to a redundant power supply (two separate power supplies),
both must meet these requirements.
Safety notices on use in hazardous areas
General safety notices relating to protection against explosion
EXPLOSION HAZARD
DO NOT CONNECT OR DISCONNECT EQUIPMENT WHEN A FLAMMABLE OR
COMBUSTIBLE ATMOSPHERE IS PRESENT.
Exceptions
For the devices listed below, there are no requirements according to NEC Class 2 or LPS.
For these devices, note the conditions described in the section Supply for IRT-PRO devices
(Page 45).
● X201-3P IRT PRO
● X202-2P IRT PRO
● X204IRT PRO
SCALANCE X-200
Operating Instructions, 03/2015, C79000-G8976-C284-06
WARNING
WARNING
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