Connecting up
5.2 Power supply
SCALANCE X-200
46 Operating Instructions, 03/2015, C79000-G8976-C284-06
● 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
Plug in metal casing
•
If the devices are operated at an ambient temperature in excess of 40 °C or if currents
higher than 6 A flow via the connector, the connector with the metal casing must be used.
In areas subject to the National Electric Code (NEC), the Canadian Electric Code (CEC)
and the EC directive 94/9 (ATEX) and IECEx, metal connectors must be used.
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
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