SEL introduced the world’s first digital relay in 1984, revolutionizing the power protection industry by offering fault locating and other features for a fraction of the cost of earlier systems. In the years since, we have grown and developed a complete line of products and services for the protection, monitoring, control, automation, and metering of electric power systems.

 

Creativity, extensive research, attention to customer needs, and a wealth of power system, automation, communications, and cybersecurity expertise drive our research and development processes. Our multidisciplinary teams of power, communications, automation, software, mechanical, and electronic design engineers develop products that meet or exceed customer needs for features, functionality, and robustness.

 

At SEL, we take our commitment to quality very seriously, as demanded by our customers’ very critical applications. Our worldwide, ten-year warranty not only reflects our commitment, but also demonstrates the quality and value we deliver. SEL is certified to the International Standards Organization (ISO) 9001:2000 Quality Management Systems Standard. This certification is evidence that our critical design, manufacturing, and business processes meet the exacting requirements of the internationally recognized ISO program. Our products meet or exceed both national and international testing standards.

 

SEL knows that our skilled, motivated manufacturing team is one of our most valuable assets. SEL uses state-of-the-art equipment and controlled processes to build to the highest workmanship standards. Assemblers, inspectors, and test technicians are trained in manufacturing and electronics technology. SEL manufacturing employs many methods to ensure that the design process output meets manufacturing operations’ needs and that there is sufficient coordination for a trouble-free and timely introduction of products.

 

SEL customer service representatives and application engineers are skilled in necessary technical and business disciplines and have various language skills, in addition to their local knowledge and experience with electrical power systems. Working closely with customers helps SEL continue to supply the highest quality equipment and services — the cornerstone of the company’s mission and success.

 

SEL provides live technical support to our customers in 121 countries from 36 regional Technical Service Centers in the United States and 26 Technical Service Centers in 14 additional countries worldwide.