Table of Contents
Advertisement
Device Modules and Terminal Details
2.6 Power Supply Unit (PSU)
2.6
Power Supply Unit (PSU)
The relay is supplied with the following rated power supply ranges:
•
AC 60 V to 240 V/DC 60 V to 240 V power supply (BI threshold - AC 88 V/DC 88 V)
•
DC 24 V to 60 V power supply (BI threshold - DC 19 V)
The power supply module is equipped with 2 or 4 binary inputs and binary outputs based on the ordering
option. The device with a PSU (dual powered) also provides 1 RS485 communication interface (half duplex) for
communicating with RTUs and parameterization of relays via remote locations.
For AC connections, the auxiliary supply is made with the live connection to positive terminal and neutral
connection to negative for consistency and safety.
If the supply voltage levels are falling below the relay minimum operate level, the relay power automatically
switches over to CT power through CT phase currents.
24
Reyrolle, Hardware, Manual
C53000-T7040-C101-2, Edition 09.2020
Advertisement
Table of Contents
