Pin number Assignment
Pin 1 Functional ground
Pin 2 M (chassis ground)
Pin 3 L+ (24 VDC)
WARNING
Incorrect power supply
The power supply unit for supplying the devices must comply with NEC Class 2 or LPS (voltage
range 19.2 - 28.8 V, current requirements 350 mA).
Do not operate the devices with DC voltages higher than 28.8 VDC.
Do not operate the device with an AC voltage:
• XB008 (6GK5 008-0BA00-1AB2)
• XB004-1G
• XB004-1LDG
• XB005G
• XB008G
6.4 Grounding
Protective/functional ground
The connection of the reference potential surface with the protective earth system is normally
in the cabinet close to the power feed-in. This earth conducts fault currents to ground safely and
according to DIN/VDE 0100 is a protective earth to protect people, animals and property from too
high contact voltages.
Connecting up
6.4 Grounding
SCALANCE XB-000
Operating Instructions, 01/2022, A2B00077300-11 51
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