SEL is a globally recognized designer and manufacturer of products and solutions that make electric power safer, more reliable, and more economical.
Legacy
Forty years after introducing the first digital protective relay, our devices, software, and systems are found in 172 countries around the world.
Customer Focus
From our headquarters in Pullman, Washington, we partner with public utilities and private industry all over the world to offer the industry’s top, 10-year warranty and no-cost technical support for as long as our products remain in service.
Impact
SEL innovations continue to advance the global power grid—modernizing and protecting access to power for an increasingly diverse array of communities and global partners.
Follow us to learn more about the latest innovations and insights in the industry as we make the power grid and the critical devices within it smarter, more sustainable, and more resilient.
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Industry
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Utilities
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Company size
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5,001-10,000 employees
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Headquarters
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Pullman, WA
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Type
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Privately Held
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Founded
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1982
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Specialties
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Engineering Services, Protective Relays, Distribution Control, Metering, Fault Indicators and Sensors, Automation Controllers, Communications, Precise Timing, Cybersecurity, Arc-Flash Solutions, Microgrid Controls, Software-Defined Networking, Substation Technologies, Time-Domain , Traveling-Wave Fault Location, Distribution Network Automation, Enclosures and Panels, Synchrophasors, RTACs, Industrial Computers, Recloser Controls, Cybersecurity, and OT SDN