All-in-one protection relay for advanced applications

ABB REX640 400

Mar 11, 2019

The fully modular, adaptable all-in-one protection and control relay REX640 makes protecting all your assets in advanced power generation and distribution applications easy throughout the relay’s life cycle.

ABB has added a new member to its prominent Relion protection and control family of relays for digital switchgear. REX640 is the outcome of a long-standing evolution and builds on ABB’s strong heritage of freely configurable multifunctional relays.

REX640 covers the full range of utility and industrial applications and is able to manage multiple applications simultaneously. This guarantees flexible, versatile and cost-efficient protection solutions. In brief, REX640 resets the standards of what is possible with a protection and control device.

The modularity and scalability of both software and hardware not only allow full customization freedom but now also unequalled flexibility in modification over the lifetime of the relay. REX640 is ready to adapt to changing protection requirements, anytime. New software and hardware developments will be continuously and easily accessible. This is asset management at its best.

“REX640 is the outcome of an evolution that will revolutionize the world of distribution protection and control,” said Alessandro Palin, managing director of ABB’s Distribution Solutions business. “It fulfills the efforts of many to introduce a new solution for our customers’ needs.”

REX640 has been designed to support the increasing digitalization of substations and thereby a variety of digital switchgear solutions. With a record number of local measurement channels, supporting both conventional instrument transformers and sensors, REX640 is also able to receive multiple streams of sampled measured values via IEC 61850-9-2 LE-based process bus communication.

In addition, REX640 introduces a novel, application-driven approach to the local human-machine interface (LHMI), which allows support for entirely new applications. The intuitive LHMI features a color touch screen that visualizes power distribution process information in a unique way, with increased situational awareness and maximum usability as a result.

REX640 will be released for sale during quarter four, 2018. As a member of ABB’s Relion® protection and control family of relays, REX640 further reinforces Relion’s decade-long position as the range of relays to rely on. REX640 will be showcased at Hannover Messe 2018 at the ABB booth in Hall 11, Stand A35, installed in the UniGear Digital and ZX2 switchgear.

Go HERE for more information

Related Articles


Latest Articles

  • Declines in Ontario and Manitoba Construction Intentions Push Down the Non-Residential Sector

    Declines in Ontario and Manitoba Construction Intentions Push Down the Non-Residential Sector

    December 16, 2024 The total value of building permits issued in Canada decreased by $399.1 million (-3.1%) to $12.6 billion in October. This comes on the heels of a strong September, during which construction intentions rose by $1.3 billion to the second-highest level in the series. Despite the monthly decline in October, the total value of building permits… Read More…

  • Lighting Control Basics for Home Automation

    Lighting Control Basics for Home Automation

    By Matthew Biswas Do your eyes roll when you hear terms like Smart home technology?  Or are you a true believer?  As it turns out controlling electrical devices via low-voltage technology can be easier to implement and use than many of us thought. The Lutron Caseta system uses the internet and Radio Frequency to instantly… Read More…

  • Grounded in Ontario: The Future of Energy Storage Systems

    Grounded in Ontario: The Future of Energy Storage Systems

    December 16, 2024 Technical Advisor Trevor Tremblay explains why following best practices and relying on licensed professionals will ensure a smooth and secure transition when integrating this exciting new technology. Energy Storage Systems (ESS) are revolutionizing the way individuals and businesses manage energy, providing cost-saving opportunities, increased energy reliability, and a pathway toward sustainability. In… Read More…

  • 4 in 5 Canadians See Electrifying Public Transit as Key to Advancing Climate Action, Schneider Electric Survey Finds

    4 in 5 Canadians See Electrifying Public Transit as Key to Advancing Climate Action, Schneider Electric Survey Finds

    December 13, 2024 Schneider Electric has released new survey findings showing Canadians are increasingly concerned about the environmental impact of traditional public transit emissions. According to the survey, 83 per cent of Canadians recognize the need for electrified transit to support a sustainable future and are seeking actionable and innovative solutions to ease the nation’s… Read More…


Changing Scene