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ABB REU 523 Technical Reference Manual

ABB REU 523
68 pages
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REU 523
Combined Overvoltage and
Undervoltage Relay
Technical Reference Manual

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ABB REU 523 Specifications

General IconGeneral
Frequency50/60 Hz
DisplayLCD
Binary Inputs4
Relay Outputs6
Communication ProtocolsIEC 61850, Modbus, DNP3
Protection FunctionsOvercurrent, Earth Fault, Voltage, Frequency
MountingDin rail
Contact rating5 A / 250 V AC

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