REX615 is a freely configurable all-in-one protection relay for

power generation and distribution applications, 

representing the next step for ABB’s 615 and 620 series relays.

Multiapplication coverage combined with a fully modular and scalable

hardware and software ensures maximum flexibility and

optimal cost-effectivity throughout the relay life cycle – and supports sustainability.

Optimizing asset management

•  Brand-new relay but with an impressive history –familiar relay saves time and efforts

•  Less to learn and less spare devices to store with one relay covering multiple application areas

•  Extensive life cycle services – long-term global partner with longtime experience close to you in

your language

•  Adaptable to changing requirements for the lifetime of the relay through easy adding or

replacing of modules or application packages

•  Easy access to up-to-date information via the e-business platform ABB Relays-Online

•  Latest addition to ABB’s renown Relion® relay family – strengthening the REX portfolio

Complying with evolving regulations

•  Interconnection protection package for a better way of connecting to renewables

•  Compliance with the latest grid codes to ensure renewables remain connected during disturbances

•  Extensive protection and fault location functionality to ensure compliance with the

regulation of electricity utilities to minimize costly downtime

• Third-party verified Environmental Product Declaration compliant with ISO 14025