We understand, defend, and serve ICS and OT networks.
Cybersecurity is not one thing. It is never finished. Our mission is to provide services and solutions that defend and maintain the availability of industrial control system (ICS) and operational technology (OT) power systems.
We believe in establishing a strong understanding of the system you are defending and that simpler products and systems are easier to defend. The layered defense model is most effective when the right technologies are applied at the appropriate layers and incorporated to support the specific purpose of each part of the system.
Our supply chain is our customers’ supply chain. See how we keep it secure.
SEL security updates, best-practices information, and training resources.
Use these awareness aids to help everyone make cybersecurity best practices part of their daily routine.
We work with partners in government and industry to bring new cybersecurity technology and products to market.
A personalized, no-cost maturity and roadmap assessment to advance your system's cybersecurity.
Cybersecurity, and the protection of critical infrastructure, is a mission we serve every day and have done since the beginning of our company. We design cybersecure systems and solutions for all industries based on an in-depth understanding of OT performance requirements, customer needs, and critical infrastructure demands.
OT SDN is a true deny-by-default networking solution with better security, control, and performance than traditional Ethernet technology.
Improve and secure the information exchange between IT and OT network devices.
Protect against cyber threats with Ethernet security gateways and advanced firewall solutions designed for substation and industrial environments.
From system assessment and baselining to cyber-defense solution development and ongoing system management, our full suite of security services can help strengthen your defenses and streamline the demands of maintenance and compliance.
Our cybersecurity professionals provide secure solutions tailored to your priorities and objectives.
We help electric utilities meet NERC CIP cybersecurity standards and streamline compliance processes.
Practical steps you can take right now to reduce cyber vulnerability—plus how SEL can help.
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.
It’s been this way at SEL 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.
Training and education for power system engineers, technicians, and managers.