Siemens X-400 Installation and Commissioning, Installing / Removing the SCALANCE X414-3E

Installation and Commissioning 6

6.1Installing / Removing the SCALANCE X414-3E

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Warning

SCALANCE X-400 is designed for operation with safety extra-low voltage (SELV). This means that only safety extra-low voltages (SELV) complying with IEC950/EN60950/ VDE0805 can be connected to the power supply terminals.

The power supply unit for the 24 V DC supply must comply with NEC Class 2 (voltage range 20.4 - 28.8 V DC, current requirement max. 2 A). If the device is supplied with power redundantly, both power supply units together must comply with NEC Class 2.

Exceptions:

●Power supply with PELV (according to VDE 0100-410) is also possible if the generated rated voltage does not exceed the voltage limits 25 V AC or 60 V DC.

●Power supply by a SELV power source (according to IEC 60950) or PELV power source (according to VDE 0100-410) without limited power is also per- mitted if suitable fire protection measures are taken by:

-Installation in a cabinet or suitable enclosure

-Installation in a suitably equipped, closed room

Caution

The subject unit must be located in a Restricted Access Location where access can only be gained by SERVICE PERSONNEL or by USERS who have been in- structed about the reasons for the restrictions applied to the location and about any precautions that shall be taken when operated in an air ambient of 50°C - 60°C

Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches	67
C79000-G8976-C186-03