Siemens SCALANCE X-300EEC, Compact Operating Instructions

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6.7.3.1 Overview
Table 6-5 100 to 240 V AC voltage
Device Device version (power supply) 100 to 240 V voltage
Redundant Single
X302-7EEC 1 x 100 to 240 V AC / 60 to 250 V DC - ●
2 x 100 to 240 V AC / 60 to 250 V DC ● -
X307-2EEC 1 x 100 to 240 V AC / 60 to 250 V DC - ●
2 x 100 to 240 V AC / 60 to 250 V DC ● -
6.7.3.2 Connecting the 100 to 240 VAC power supply
Power supply 100 to 240 VAC / 60 to 250 VDC
The switch is available in the following versions for power supply with the multirange power
supply unit 100 to 240 VAC / 60 to 250 VDC:
● With single power supply unit (1 x 100 to 240 VAC / 60 to 250 VDC)
● With redundant power supply unit (2 x 100 to 240 VAC / 60 to 250 VDC)
Each power supply unit PS1 and PS2 has a separate supply connector.
You can recognize the type of power supply from the labeling on the device and the labeling of
the terminal block for the power supply of the switch.
On devices with a 100 to 240 VAC power supply, the connectors of the signaling contact and
the power supply are identical. To avoid confusion, the two pins have a different coding.
Grounding
WARNING
Danger from line voltage
Grounding simply via the housing is inadequate.
In this case, connect the functional ground to ensure reliable operation.
With devices with a supply voltage of 100 to 240 VAC / 60 to 250 VDC, you should also
connect the protective earth to the grounding bolt.
On the SCALANCE X-300EEC, the grounding bolt is on the bottom of the device.
On the SCALANCE XR-300M EEC, the grounding bolt is on the rear of the housing between
the power connectors.
Connecting
6.7 Power supply
SCALANCE X-300EEC
Compact Operating Instructions, 11/2019, A5E02630809-14
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