Secondary Market Policy

The SEL mission is to make electric power safer, more reliable, and more economical. We invent, design, and build products that deliver exceptional value as they protect power grids and other critical infrastructure around the world. We warrant our products for ten years and design them to last decades. Since 1982, we have consistently emphasized the importance of, and set the standard for, security and resiliency. We believe that managing supply chain risks is fundamental to ensuring the quality of our products and the components that comprise them. We view our role in protecting critical infrastructure as a serious responsibility.

For over 40 years, we have proudly manufactured all electronic devices in our secure facilities in the U.S.A.: in Pullman, Washington; Lewiston, Idaho; Lake Zurich, Illinois; and West Lafayette, Indiana, certified to an array of internationally recognized standards. To ensure the integrity of our products, we verify the performance of all purchased components against supplier product specifications. When necessary, we subject components to rigorous examination to detect counterfeiting or alteration. This can include functional and penetration testing augmented by conventional microscopic, electron microscopic, x-ray, x-ray fluorescence, and decapsulation inspections.

We ship our products using tamper-evident packaging. We use only trusted shipping partners to ensure SEL customers receive exactly what they and we expect.

Because we cannot apply these same rigorous controls to secondary market suppliers, we cannot ensure the integrity of products obtained from online auction services, industrial salvage companies, or other unofficial sales channels. Thus, we do not support, furnish updates for, or repair new or used products purchased from these unauthorized resellers without written pretransfer approval from SEL. This transfer process is explained in detail in the SEL Terms and Conditions agreement. If you have additional questions about purchasing an SEL product, please contact our sales team.