Description

Technical Specifications

• Product Model: ABB REF542 1VCF752000
• Brand: ABB
• Warranty: One Year Full Coverage Warranty
• Working Voltage: 110–240V AC / 110–250V DC Universal Power Supply
• Working Temperature: -40°C to 70°C
• Storage Condition: -50°C to 85°C, Non-condensing Humidity
• Interface Type: Terminal blocks, Ethernet, IEC 61850, Modbus, SPA-bus communication
• Anti-interference Level: Industrial EMC Anti-interference Standard

Product Overview

The ABB REF542 1VCF752000 (REF542plus) multifunction feeder terminal is a compact bay control and protection unit for medium voltage power systems. It integrates protection, measurement, circuit breaker control, status monitoring, fault recording and self-diagnosis in one single device. It delivers overcurrent, earth fault, thermal overload and motor/transformer backup protection, widely used for 10–36kV switchgear, including GIS and AIS cabinets. Built for continuous operation in industrial and utility substations, this unit addresses protection failure and monitoring loss caused by aged or defective original relays. Manufactured to strict power industry standards and fully tested, it serves as a dependable replacement spare part for medium voltage distribution automation maintenance and fault repair.

Core Application Advantages

• Low Failure Rate Operation: Constructed with industrial-grade materials and circuitry, delivering strong stability and durability to cut recurring maintenance expenses.
• Fast Fault Recovery: Standard panel flush mounting design enables quick installation and removal. Engineers can finish system repairs rapidly to minimize power outage losses.
• Wide System Compatibility: Fully compatible with original ABB REF542plus substation automation architecture. Supports multiple communication protocols for seamless connection with SCADA, no complex program adjustments needed after installation, bringing zero adaptation cost.

Typical Application Cases

• Industrial System Emergency Maintenance: Emergency replacement of faulty feeder protection terminals in medium voltage substations to restore feeder protection and bay control rapidly.
• Long-term Spare Part Reserve: Kept as regular inventory for power plants and distribution substations, easing procurement bottlenecks and long lead times of original imported spare parts.
• Automation System Upgrade: Matches legacy switchgear during power distribution network reconstruction and smart substation transformation.