Siemens SIMATIC NET SCALANCE X-200, Руководство по эксплуатации

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Metal version
In areas subject to the EU directives ATEX and IECEX of the National Electric Code (NEC), the
Canadian Electric Code (CEC) and UL, metal connectors must be used.
Further information and technical advice on this subject is available from:
Jürgen Hertlein, juergen.hertlein@siemens.com.
Power supply
• Power: 24 VDC
• The power supply is connected over a high resistance with the enclosure to allow an
ungrounded set up.
• The power supply is non-floating.
• The signal cables of the electrical Ethernet interfaces are floating.
Note
No redundant power supply
Since the IRT PRO version of the devices does not have a redundant power supply, connect the
power supply to L1 and N1.
Note
Maximum current 16 A
The current through the Power Plug PRO must not exceed 16 A. You should therefore include a
fuse that trips at a current higher than 16 A.
In areas subject to the NEC or CEC, the fuse must meet the following requirements:
• Suitable for DC (min. 60 V / max. 16 A)
• Breaking current at least 10 kA
• UL / CSA listed (UL 248-1 / CSA 22.2 No. 248.1)
• Classes R, J, L, T or CC
Otherwise the following requirements must be met:
• Suitable for DC (min. 60 V / max. 16 A)
• Breaking current at least 10 kA
• Approved according to IEC/EN 60127-1
• Breaking characteristics
– With circuit breakers: B or C
– With fuses: slow blow
Power supply looped through
The devices also have a connector for the switched mode and unswitched power supply of other
devices with 24 VDC. Via these interfaces (L1+, N1 and L2+, N2) it is possible to loop the power
through with connector technology compliant with PROFINET.
Connecting up
5.3 Power supply
SCALANCE X-200
Operating Instructions, 11/2021, C79000-G8976-C284-15
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