![ABB Electrification on Twitter: "ABB's new 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. #HM18 # ABB Electrification on Twitter: "ABB's new 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. #HM18 #](https://pbs.twimg.com/media/DbnRB95XUAInl3S.jpg)
ABB Electrification on Twitter: "ABB's new 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. #HM18 #
![Current protection relay - REX640 - ABB Oy Distribution Automation - voltage / for transformers / IEC Current protection relay - REX640 - ABB Oy Distribution Automation - voltage / for transformers / IEC](https://img.directindustry.com/images_di/photo-m2/41044-18010881.webp)
Current protection relay - REX640 - ABB Oy Distribution Automation - voltage / for transformers / IEC
REX640 Protocol Implementation extra Information for Testing (PIXIT) for the IEC 61850 9-2LE interface in REX640
![REX640 introduces high-speed transfer to secure electrical supply for critical parts of the power system | ABB REX640 introduces high-speed transfer to secure electrical supply for critical parts of the power system | ABB](https://resources.news.e.abb.com/images/2023/1/24/1/9IBA252859_1280x720.jpg)
REX640 introduces high-speed transfer to secure electrical supply for critical parts of the power system | ABB
![Current protection relay - REX640 - ABB Oy Distribution Automation - voltage / for transformers / IEC Current protection relay - REX640 - ABB Oy Distribution Automation - voltage / for transformers / IEC](https://img.directindustry.com/images_di/photo-m2/41044-18017283.webp)