The 7SR5430-3AD26-1AA0 is a transformer protection relay designed for use with transformers that have three windings. It features protection for 12 current transformers and includes integrated temperature sensor inputs (TSI), along with multiple binary inputs (BI) and binary outputs (BO). The relay provides standard communication interfaces such as USB (front), RS485 (rear), and optical LC interfaces, enabling efficient monitoring and control. It supports switching statistics, circuit breaker monitoring, fault recording for both analog and digital signals, and offers a logic editor for configuration. This device is part of a product family specializing in transformer protection and control, suitable for ensuring reliable operation and protection of transformer systems.

Siemens is a global leader in industrial automation, digitalisation, and electrification, offering products such as PLCs, drives, industrial robots, and process control systems. Known for innovation and sustainability, Siemens’ technologies enhance efficiency, safety, and performance across industries like manufacturing, energy, and healthcare.

***CJS Automation is NOT an authorised distributor of Siemens***