We ensure the reliability, resiliency, and safety of the electric distribution grid.
SEL provides solutions and services that protect, control, and optimize electric power distribution systems—helping our customers deliver safe, reliable power to people around the globe.
Our mission is not merely to sell products and systems, but to ensure that everyone has access to safe, reliable electric power. Our customers all share this goal—yet there are many different ways to achieve it. Distribution systems need to be responsive to future demands, and above all, reliable. This is why we innovate toward simplicity.
From protection fundamentals to advanced automation, SEL solutions improve the safety, reliability, and efficiency of every part of the distribution grid.
Our innovative solutions are simple to deploy and flexible enough to encompass all feeder topologies. They integrate with existing equipment and work seamlessly together. And they can be scaled up after deployment, allowing you to add devices and functionality all at once, or piece by piece as needs evolve and budgets allow.
Minimize customer outages by automatically isolating permanent faults and rerouting power around the affected sections.
Lay the foundation for reliable feeder protection with intelligent SEL relays in the substation.
Ensure maximum reliability for your customers by clearing temporary faults and isolating outages.
OT SDN is a true deny-by-default solution with better cybersecurity and situational awareness than traditional networking technologies.
Harness the data captured by substation IEDs to increase the security and reliability of the distribution grid.
Enable secure remote access to IEDs, improved fault location, and better protection speed.
Improve your system’s power factor and respond to demand in real time.
SEL provides turnkey solutions and services that help you improve reliability, modernize protection systems, and meet complex challenges such as integrating distributed generation.
No matter how difficult the problem may be, we can engineer and implement a system that helps you simplify and solve it. And SEL solutions don’t end at commissioning; our worldwide network of application engineers provides technical support for the entire life of your SEL products and systems.
We deliver turnkey solutions, engineered specifically for your operational goals and your system.
SEL cybersecurity and networking experts strengthen your system’s defenses and provide turnkey networking solutions.
We use the industry’s most extensive library of validated models to design, test, and validate solutions.
Custom-engineered, turnkey distribution automation and control solutions.
We believe you should never have to worry about whether your protection and control systems will be working when you need them most. That’s why every device we manufacture comes with a 10-year warranty and free technical support.
We've collaborated closely with our customers since the company was founded nearly 40 years ago—a major reason why we’re North America’s most trusted provider of protective relays and ranked #1 by international utilities in price, service, and support.
SEL product warranty and reliability information—plus how to return a product or contact tech support.
Stay informed on cyber vulnerabilities and keep your SEL products up-to-date.
Solutions and services that help you implement and maintain layered cybersecurity defenses.
Training and education for power system engineers, technicians, and managers.