Based on more than 40 years of experience in the railway electrical network field, our new DDL9000 protection relay protects your catenaries, or the power supply rails for direct current electric traction.

Our DDL9000 protection relay facilitates the operation of your railway electrical networks thanks to its protection functions such as [di/dt] and its patented parallel line management version, or its high capacity for recording faults and events.

Its very precise and hybrid acquisition of currents and voltages, by sensors and IEC 61850-9-2 "Sampled Values", its embedded web server and its touch screen HMI, allow you to calmly approach the future of your railway infrastructures.