The permitted auxiliary voltage range of the IED is marked on top of the IED's LHMI.
GUID-FF5CD464-2C31-4F6A-B081-EA80ECF8D942 V2 EN
Figure 40:
Connecting auxiliary voltage
5.7
Connecting communication
Before connecting communication, check that the HW module has the correct
communication interfaces. The communication module is located on the left side of the
IED when viewing the case from the rear.
See the technical manual for product-specific communication interfaces.
5.8
Energizing the IED
Before connecting the auxiliary power, check that the protective film is
removed from top of the IED.
Section 5
1MAC457436-IB B
Connecting
50
620 series ANSI
Installation Manual