All-in-one protection for any power distribution application

REX640 makes protecting all your assets in advanced power generation and distribution applications easy. The fully modular design allows unequaled customization and modification flexibility, and easy adaptation to changing protection requirements throughout the relay life cycle. This is asset management at its best. As the newest member of ABB’s Relion® protection and control family of relays, REX640 further reinforces Relion’s position as the range of relays to rely on.


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