Auxiliary Voltage Inputs - Siemens Reyrolle 7SR45 Manual

Device Modules and Terminal Details

2.4 Auxiliary Voltage Inputs

2.4

Auxiliary Voltage Inputs

NOTE
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The auxiliary voltage input is available for the 7SR45 dual power variants only.
The 7SR45 Argus Relay is powered primarily using auxiliary voltage when the relay is ordered with a auxiliary
power supply option even if all other power sources are available. In the absence of auxiliary voltage, the relay
is powered through phase currents.
In the absence of both auxiliary voltage and phase currents, the relay can be powered by USB or battery.
All the protection and measurement algorithms and RS485 communication (Rear port) are active when the
7SR45 Argus Relay is powered by auxiliary voltage.
The following auxiliary voltage inputs are provided on the 7SR45 Argus relay:
•
DC 24 V to 60 V
•
DC 60 V to 240 V/AC 60 V to 240 V
22 Reyrolle, Hardware, Manual
C53000-T7040-C101-2, Edition 09.2020