AC Power Photovoltaic LED Telecom Dataline Radiocom Wind Turbine Accessories / About us Who we are, what we do, and what we stand for! Since 1937, CITEL has been protecting equipment around the world from transient overvoltages caused by switching operations and lightning strikes. . With a deep understanding of international and national standards and regulations, as well as continuous investment in research and development, CITEL manufactures and distributes millions of protection devices every year. CITEL develops all critical protection solutions in-house. Our teams around the world take pride in helping to provide the market with a comprehensive range of surge protection products with our unique customer-focused service and quality. Unique, like each of our customers. Unique, like our strategic vision, financial independence, international technical cooperation and strong individual commitment. Whether standard or customised solutions, we cover all our customers' needs. This ambition guides our daily work. We take into account the specific needs, risks and applications of local markets and provide protection for low-voltage installations, communication networks, photovoltaic systems and LED lighting. The millions of SPDs manufactured and distributed each year are a testament to the high quality standards, consistency and product reliability for our customers and partners around the world. From technical expertise to operational deployment, we are passionate about every aspect and issue related to SPDs. Our teams are made up of engineers and SPD specialists who can provide the best insights and solutions.