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100 in stock

ABB REF620 Dedicated Feeder Management Relay

Brand/Manufacturer: ABB

Order Number: REF620

Type: Management Relay

Country of Origin: Sweden

Condition: Original Brand

Lead Time: Available in stock

Payment Term: 100% TT In Advance

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Description

ABB REF620 Feeder Protection and Control Relay

The ABB REF620 is an advanced feeder protection and control relay from the Relion® 620 series, designed to safeguard and manage outgoing power lines (feeders) in medium-voltage power distribution networks. As a key component in modern substations, the REF620 ensures reliable, safe, and efficient power delivery.


Core Functions

1. Protection
REF620 detects and isolates faults such as short circuits and earth faults to protect equipment and maintain system stability. It supports a wide array of protection functions:

  • Overcurrent protection

  • Earth-fault protection, including advanced multifrequency admittance-based protection

  • Fault location

  • Optional modules for:

    • Distributed generation interconnection

    • Capacitor bank protection

    • Basic motor protection

    • Arc flash protection

2. Control
Enables remote and local control of switching devices like circuit breakers, allowing safe and efficient power flow management and isolation during faults or maintenance.

3. Measurement
Continuously monitors electrical parameters such as current, voltage, power, and frequency—providing real-time data for operational analysis and optimization.

4. Supervision
Monitors the health and performance of the feeder, detecting abnormalities to prevent potential system failures.


Key Features and Benefits

  • All-in-One Solution: Combines protection, control, measurement, and supervision in a compact, integrated unit.

  • Flexible Deployment: Suitable for radial, looped, or meshed networks—with or without distributed generation.

  • Advanced Earth-Fault Detection: Multifrequency admittance-based algorithm delivers high sensitivity and precise fault location.

  • IEC 61850 Compliant: Ensures seamless substation automation, supporting GOOSE messaging, HSR, and PRP redundancy.

  • User-Friendly Interface: Equipped with a large graphical display and customizable single-line diagrams (SLDs); also accessible via web-based HMI.

  • Withdrawable Design: Plug-in module enables fast installation, easy commissioning, and simplified maintenance.

  • Multi-Protocol Support: In addition to IEC 61850, it supports Modbus, DNP3, and IEC 60870-5-103 protocols for broad integration compatibility.

  • Focus on Benefits:

    We focus on what truly matters to industrial buyers — authentic products, reliable stock, and fast global delivery. Explore how we support your operations with trusted sourcing and expert service.

  • Hard-to-Find & Obsolete Parts:

    We specialize in sourcing rare and discontinued industrial automation components that others can't deliver.

  • Large In-Stock Inventory:

    Thousands of genuine parts ready for immediate shipping — reduce downtime and keep operations running smoothly.

  • Fast Response · Global Delivery:

    Get a quote within hours. We ship worldwide with express options to meet urgent demands.

  • Original Products · 1-Year Warranty:

    All parts are factory-sealed and 100% original. Covered by a 1-year warranty and 30-day return support.

  • Why You Can Trust Us:

    We go beyond parts — delivering reliability, speed, and expertise trusted by industrial buyers worldwide.

  • DcsSupplier Limited

    Trusted by Global Clients

    Serving thousands of companies across oil & gas, power, manufacturing, and more — from Fortune 500 enterprises to local distributors.

  • DcsSupplier Limited

    Uptime Is Our Priority

    Downtime is costly. That’s why we ensure rapid access to critical parts, minimizing production interruptions and delays.

  • DcsSupplier Limited

    Experts in Sourcing Rare Parts

    Our team specializes in finding hard-to-source and obsolete components — saving you time, risk, and procurement headaches.

  • DcsSupplier Limited

    One-Stop Automation Supply

    We offer complete automation part solutions — PLCs, drives, sensors, HMIs, relays — with expert guidance every step of the way.

Testimonials

Fast Delivery, Excellent Quality


We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.

- Sarah Johnson

Reliable Partner for Original Parts


Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.

- David Smith

Professional Service with After-Sales Support

"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."

- Emily Brown

Trusted Source for Industrial Automation Spares


We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.

- Michael Anderson