ABB’s REX600 is a next-generation protection and control device that combines merging unit functionality, backup protection, and fault detection in a compact, DIN-rail-mounted design. It integrates seamlessly with ABB’s SSC600, SSC600 SW, and Relion® protection relays, supporting efficient deployment in digital substations. Designed for versatile applications, REX600 features freely configurable protection, control, and measurement functions while complying with key standards, including IEC 61850-9-2LE, IEC 61869-9, and IEC 61869-13, enabling interoperable, multivendor architectures.
The device incorporates accurate fault passage indication for rapid fault localization and improved grid resilience. Strong cybersecurity features, including secure boot, encrypted communications, role-based access control, and audit logging, align with IEC 62443 standards, ensuring secure and reliable operation.
