ABB REF543 Feeder Protection and Control Terminal

Description

The ABB REF543 is a multifunctional feeder protection and control terminal designed for medium-voltage power distribution. It integrates protection, measurement, control, and automation functions in a compact and flexible unit.

Specifications

• Model: REF543

• Manufacturer: ABB

• Product Type: Feeder Protection and Control Terminal

• Application: Medium-voltage substations and industrial networks

• Protection Functions: Overcurrent, earth fault, motor protection, capacitor bank control

• Control Capabilities: Circuit breaker control, interlocking, and automation sequences

• Measurement Functions: Voltage, current, power, frequency, and energy metering

• Communication Interfaces: RS232, RS485, Ethernet (optional), IEC 60870-5-103

• PLC Integration: Built-in logic functions for automation

• Display: LCD with keypad for local configuration and monitoring

• Dimensions: 28 mm × 129 mm × 74 mm

• Weight: 7.7 kg

• Origin: Switzerland

• Mounting: Panel or rack-mounted

Features

• Multifunctional Design: Combines protection, control, and measurement in one device

• Flexible Configuration: Supports various network topologies and switchgear types

• Automation Ready: Integrated PLC logic for custom control sequences

• Motor and Capacitor Protection: Ideal for feeders with motors or shunt capacitors

• Advanced Communication: Interfaces for SCADA and remote monitoring

• User-Friendly Interface: LCD display with intuitive navigation and diagnostics

• Global Standards: Complies with IEC protection and automation protocols

• Reliable Operation: Proven performance in demanding industrial environments