Description

Technical Specifications

• Product Model: ABB REF610 1MRS050775
• Brand: ABB
• Warranty: One Year Full Coverage Warranty
• Working Voltage: 24–250V DC / 100–240V AC Universal Auxiliary Supply
• Working Temperature: -40°C to 70°C
• Storage Condition: -50°C to 85°C, Non-condensing Humidity
• Interface Type: Terminal blocks, front optical port, IEC 61850, IEC 60870-5-103, Modbus, DNP3, SPA, LON bus
• Anti-interference Level: Industrial EMC Anti-interference Standard

Product Overview

The ABB REF610 1MRS050775 feeder protection IED belongs to ABB Relion 610 legacy series. It is a numerical multifunction relay designed for medium voltage incoming and outgoing feeders in industrial and utility distribution substations. It integrates overcurrent, non-directional earth fault, thermal overload, phase discontinuity and auto-reclosing protection; optional arc flash protection function is available. With plug-in modular construction, it supports resistance-earthed and solidly earthed power networks, and can be deployed for marine and offshore applications. Built for continuous reliable operation in power switchgear cabinets, this unit resolves protection trip 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: Plug-in withdrawable 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 Relion 610 substation automation architecture. Supports multiple communication protocols for seamless SCADA connection, no complex program adjustments needed after installation, bringing zero adaptation cost.

Typical Application Cases

• Industrial System Emergency Maintenance: Emergency replacement of faulty feeder protection relays in medium voltage substations to restore feeder protection and monitoring 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 substation retrofitting projects.