IDEF SYSTEMES is an innovative and quality-focused company which supplies protection relays and monitoring solutions to the electrical transformer industry. We thrive to offer total quality and reliability in our products and services in all circumstances and have become the trusted partner of our clients all across the world. We are an independent company founded in 1994 and our operations, located in the French Alps, are certified ISO 9001:2015.

Our flagship product, the DMCR, is a protection relay for distribution transformers. For the last 25 years IDEF SYSTEMES has supplied c. 300,000 DMCRs all across theworld, accumulating millions of years of service time.