![Protection and control REX640 – all-in-one protection for any power distribution application - YouTube Protection and control REX640 – all-in-one protection for any power distribution application - YouTube](https://i.ytimg.com/vi/hVF70oZVzfU/maxresdefault.jpg)
Protection and control REX640 – all-in-one protection for any power distribution application - YouTube
![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)
Current protection relay - REX640 - ABB Oy Distribution Automation - voltage / for transformers / IEC
![How to add new software packages and/or hardware modules to an existing REX640 protection relay? - YouTube How to add new software packages and/or hardware modules to an existing REX640 protection relay? - YouTube](https://i.ytimg.com/vi/adCbpxG8TK0/maxresdefault.jpg)
How to add new software packages and/or hardware modules to an existing REX640 protection relay? - YouTube
![Protection and control REX640 – all-in-one protection for any power distribution application - YouTube Protection and control REX640 – all-in-one protection for any power distribution application - YouTube](https://i.ytimg.com/vi/iCz930jCNTs/maxresdefault.jpg)