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Connecting up
6.4 Power supply 100 to 240 VAC / 110 to 250 VDC
6.4
Power supply 100 to 240 VAC / 110 to 250 VDC
Notes on the power supply
Danger from line voltage
The supply voltage for the devices listed is 100 to 240 V AC / 110 to 250 V DC.
This device can only function correctly and safely if it is transported, stored, set up, and installed
correctly, and operated and maintained as recommended.
Terminal blocks may only be connected and disconnected by a qualified electrician.
Connect or disconnect power supply cables only in the de-energized state.
Devices with a 100 to 240 V AC/110 to 250 V DC power supply do not have an approval for
hazardous areas.
Devices with a 100 to 240 V AC / 110 to 250 V DC power supply are not approved for use in
hazardous areas according to ATEX, IECEx, FM and UL HazLoc.
Restricted access area
• Operate the device including the power supply units in a restricted access area according to
NOTICE
Securing cables with dangerous voltage
• Make sure that the connector cannot be released accidentally by pulling on the connecting
• Lay the cables in cable ducts or cable channels and secure the cables, where necessary, with
Information on the power supply
There are two possibilities for connecting the power supply:
• Via a C14 IEC plug (100 to 240 V AC)
• Via a DC terminal block (110 to 250 V DC)
The connections for the power supply are located on the rear of the device.
The two connection options are next to each other. The unused connection is protected
against use by a sliding cover. When shipped, the IEC plug is available.
The power supply is either single or redundant, depending on the device version.
64
WARNING
WARNING
WARNING
IEC 62368-1.
cable.
cable ties.
Operating Instructions, 03/2023, C79000-G8976-C586-02
SCALANCE XR-300
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