Mounting and connecting the device
3.4 Connecting the device
SIMATIC IPC477D, IPC477D PRO
92
Operating Instructions, 11/2016, A5E31347228-AF
3.4.3.3
Connecting the 24 VDC power supply
WARNING
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 V DC power supply must be adapted to the input data of the device (see technical
specifications).
Requirements
●
The device is installed.
●
The protective conductor is connected.
●
The connection terminal is wired.
●
The corresponding 24 V DC power supply is switched off.