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REF543 | ABB Feeder Protection and Control Relay

REF543 | ABB Feeder Protection and Control Relay

  • Manufacturer: ABB

  • Product No.: REF543

  • Condition:1000 in stock

  • Product Type: Feeder Protection and Control Relay

  • Product Origin: Switzerland

  • Payment: T/T, Western Union

  • Weight: 1000g

  • Shipping port: Xiamen

  • Warranty: 12 months

  • 24/7 Support
  • 30-Day Returns
  • Fast Shipping

Product Details



Parameter Details
Manufacturer ABB
Model/Part Number REF543
Description Feeder Protection and Control Relay

Product Overview



Parameter Details
Part Number REF543
Product Name REF543 Feeder Protection Relay
Application Comprehensive protection, control, measurement, and supervision for medium voltage feeders in distribution networks
Compatibility Integrates with ABB Relion series and substation automation systems; supports IEC 61850 communication
Function Provides non-directional/directional overcurrent, earth fault, and voltage protection with advanced control features

Functional Specifications



Parameter Details
Protection Functions Non-directional overcurrent (50/51), directional overcurrent (67), earth fault (50N/51N/67N), voltage (27/59), sequence components, thermal overload (49)
Measurement Capabilities Current, voltage, power, frequency, power factor; supports three-phase and residual measurements
Binary Inputs/Outputs 16 binary inputs, 10 output contacts (configurable)
Communication Interfaces 2x Ethernet ports (IEC 61850, DNP3, Modbus TCP), serial ports (SPA, IEC 60870-5-103)
Power Supply 24-265 V AC/DC or 48-265 V DC options
Operating Temperature Range -25°C to +55°C
Dimensions 177 mm x 177 mm x 144 mm (4U 19" rack mount)
Mounting 19" rack or panel mount
Protection Rating IP54 front panel
Standards Compliance IEC 60255, ANSI/IEEE C37.2, CE, UL, CSA
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Product Description

Product Details



Parameter Details
Manufacturer ABB
Model/Part Number REF543
Description Feeder Protection and Control Relay

Product Overview



Parameter Details
Part Number REF543
Product Name REF543 Feeder Protection Relay
Application Comprehensive protection, control, measurement, and supervision for medium voltage feeders in distribution networks
Compatibility Integrates with ABB Relion series and substation automation systems; supports IEC 61850 communication
Function Provides non-directional/directional overcurrent, earth fault, and voltage protection with advanced control features

Functional Specifications



Parameter Details
Protection Functions Non-directional overcurrent (50/51), directional overcurrent (67), earth fault (50N/51N/67N), voltage (27/59), sequence components, thermal overload (49)
Measurement Capabilities Current, voltage, power, frequency, power factor; supports three-phase and residual measurements
Binary Inputs/Outputs 16 binary inputs, 10 output contacts (configurable)
Communication Interfaces 2x Ethernet ports (IEC 61850, DNP3, Modbus TCP), serial ports (SPA, IEC 60870-5-103)
Power Supply 24-265 V AC/DC or 48-265 V DC options
Operating Temperature Range -25°C to +55°C
Dimensions 177 mm x 177 mm x 144 mm (4U 19" rack mount)
Mounting 19" rack or panel mount
Protection Rating IP54 front panel
Standards Compliance IEC 60255, ANSI/IEEE C37.2, CE, UL, CSA

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