SCALANCE M826
Operating Instructions, 08/2018, C79000-G8976-C362-05
39
Connecting up
4
WARNING
EXPLOSION HAZARD
Replacing components may impair suitability for Class 1, Division 2 or Zone 2.
WARNING
EXPLOSION HAZARD
Do not open the device when the supply voltage is turned on.
4.1
Safety when connecting up
Safety notices
When connecting up the device, keep to the safety notices listed below.
WARNING
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, or 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.
Summary of Contents for SIMATIC NET SCALANCE M826
Page 7: ...Preface SCALANCE M826 Operating Instructions 08 2018 C79000 G8976 C362 05 7 ...
Page 8: ......
Page 16: ...Security recommendations SCALANCE M826 16 Operating Instructions 08 2018 C79000 G8976 C362 05 ...
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Page 74: ...Index SCALANCE M826 74 Operating Instructions 08 2018 C79000 G8976 C362 05 ...