REF542PLUS ABB Multifunction Feeder Protection Relay Original In Stock

Meta Description

Integrated bay control protection terminal for medium voltage switchgear, supports IEC61850, with measurement fault recording function, fully tested, 12-month global warranty for substation spare replacement

Product Overview

• PN: REF542PLUS
• Brand: ABB
• Series: Relion Series Feeder Protection Terminal
• Type: Integrated Protection, Measurement, Control & Monitoring Relay

• Function: Compact digital bay control unit applied in medium voltage distribution switchgear, integrates feeder, transformer and motor protection, electrical parameter measurement, circuit breaker local/remote control, fault event recording and multi-protocol communication. It realizes safe isolation during short-circuit, overload and grounding faults, uploads operating data to substation SCADA system for power distribution automation managementABB Group.

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Core Features

1. Rich configurable protection functions: three-stage overcurrent, earth fault, motor overload, transformer differential, undervoltage/overvoltage protection
2. Separated HMI and main unit design, flexible cabinet installation, large LCD screen displays single-line diagram, measurement data and fault records
3. High-precision electrical measurement, supports current, voltage, power, frequency and electric energy statistics
4. Built-in fault recording and millisecond-level sequence of event recording, convenient for post-fault analysis
5. Supports IEC61850, Modbus RTU, IEC103 multiple communication protocols, compatible with new and old substation automation systems

6. Hardware self-diagnosis function, monitors trip coil, switch state and internal module operation abnormality in real time

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Technical Specs

• Rated Frequency: 50/60Hz
• Rated Current Input: 0.2A / 1A / 5A optional
• Rated Voltage Input: 100~125V AC
• Operating Power Supply: 24~250V AC/DC
• Measurement Accuracy: Current/Voltage ±0.5%, Power ±1.0%
• Communication Interface: RS485, Ethernet
• Operating Temperature: -20℃ ~ +60℃
• Protection Class: IP20
• HS Code: 8536200000
• Certification: CE certified

• Product Status: Discontinued original production, supplied with tested surplus units

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Compatibility

• Applicable Equipment: Medium voltage AIS/GIS switchgear, power distribution cabinet
• Supporting Software: CAP505, PCM600 configuration software
• Upper System: Substation SCADA, power distribution automation monitoring platform

• Not Compatible: Low-voltage distribution protection modules, third-party proprietary protection systems

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Application

• Feeder incoming/outgoing line protection and bay control for industrial plants, thermal power, petrochemical and new energy substations
• Protection and monitoring of distribution transformers, high-voltage motors
• Old substation automation system renovation and faulty protection relay spare replacement

• Intelligent monitoring and safety interlock for urban and industrial power distribution networks

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Our Advantage

• Complete protection logic, communication and aging test completed before delivery
• 12-month warranty for new original and fully tested surplus devices