Siemens IPC427 Installation Manual page 12

Figure 6 Connect to a power supply
ICP477 power supply
Potential Instrument Damage. Delicate internal electronic components can be damaged by static electricity,
resulting in degraded performance or eventual failure.
Connect the device only to a 24 VDC power supply that agrees the requirements of safety extra low
voltage (SELV) according to IEC/EN/DIN EN/UL 60950-1. Refer to
earth. Refer to Figure 8
Figure 7 Connect to protective earth
12 English
N O T I C E
to connect to a power supply.
Figure 7 to connect protective