Mounting and connecting the device
3.3 Connecting the device
SIMATIC IPC477E
Operating Instructions, 12/2016, A5E37455003-AB
49
Connecting the 24 V DC power supply
Please note the following:
Electric shock and risk of fire
Voltages that exceed an extra-
low voltage can cause electric shock or fire. Death or serious
bodily injury can result.
• The device may only be connected to a 24 V DC power supply that meets the
requirements of a safe extra-low voltage (SELV) according to IEC/EN/DIN
EN/UL 60950-1.
• The supplying source must be fused for a power rating < 240 VA; recommended fuse
rating ≤ 8 A.
Note
The 24 VDC power supply must be adapted to the input data of the device (see the technical
specifications in the operating instructions).
● The device is installed.
● The protective conductor is connected.
● The connection terminal is wired.
● The corresponding 24 V DC power supply is switched off.
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