ABB Stotz S&J lock interlock 1SDA066588R0001 is a mechanical interlock designed for use with the T1-XT3 pluggable system. This product is not a spare part and includes accessories. It is suitable for moulded-case circuit-breakers for system protection in accordance with EN 60947-2 and moulded-case switch-disconnectors in accordance with EN 60947-3. The Tmax XT compact circuit-breakers and switch-disconnectors are designed to meet various system requirements for direct and alternating current networks. They can protect power distribution systems, cables, generators, and motors, and many are also applicable in communication systems. The product offers extensive connection conversion kits, mechanical and electrical accessories, and version conversion kits. Various fieldbus and IP communication protocols are supported. The installation process is enhanced with Bluetooth and Ekip connectivity for mobile devices, allowing real-time data analysis through the ABB Ability cloud platform.