Power Supply - Siemens SCALANCE X-300 Series Compact Operating Instructions

Connecting

6.7 Power supply

6.7 Power supply
Table 6-2
Device
X304-2FE
X306-1LD FE
X307-3
X307-3LD
X308-2
X308-2LD
X308-2LH
X308-2LH+
X310
X310FE
X320-1 FE
X320-3LD FE
Operation only with safety extra-low voltage
● The IE Switch X-300 is designed for operation with safety extra-low voltage (SELV). This
● The power supply unit for the IE Switch X-300 power supply must meet NEC Class 2, as
● The power of all connected power supply units must total the equivalent of a power source
● If the device is connected to a redundant power supply (two separate power supplies), both
● The signaling contact can be subjected to a maximum load of 100 mA (safety extra-low
● Never operate the device with AC voltage or DC voltage higher than 32 V DC.
56
24 to 48 VDC safety extra-low voltage overview
WARNING
means that only safety extra-low voltages (SELV) complying with IEC950/EN60950/
VDE0805 can be connected to the power supply terminals.
described by the National Electrical Code(r) (ANSI/NFPA 70).
with limited power (LPS limited power source).
must meet these requirements.
voltage (SELV), 24 V DC).
Device version
(power supply)
1 x 24 VDC
1 x 24 VDC
1 x 24 VDC
1 x 24 VDC
1 x 24 VDC
1 x 24 VDC
1 x 24 VDC
1 x 24 VDC
1 x 24 VDC
1 x 24 VDC
1 x 24 VDC
1 x 24 VDC
Compact Operating Instructions, 11/2019, A5E00982643-18
24 V safety extra-low voltage (SELV)
can be connected redundantly
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SCALANCE X-300