Whether you’re transporting goods or people, reliability is paramount. A myriad of internal systems contribute to the success of air, water, and ground transportation. Uninterrupted power and communications are critical in keeping your operations running efficiently and safely.SEL understands the importance of having reliable, system-wide protection, control, and power for your transportation systems. We also recognize the critical role cybersecurity plays in protecting the infrastructure, which local, regional, and international transportation and commerce depend on daily. SEL offers a robust portfolio of industrial-grade solutions, including hardened Ethernet switches, high-performance computing platforms, advanced protective relays, and fully integrated power management and control systems. These technologies are engineered to enhance the resilience, reliability, and operational continuity of critical infrastructure, providing secure and efficient performance across transportation nodes, such as hubs, stations, and ports.
Maximize the Reliability and Security of Your Systems
From airport baggage-handling systems and terminal display networks to port lighting, radio communications, and rail-scheduling systems, modern transportation infrastructure depends on continuous, reliable power and cybersecure data connectivity. In a globally interconnected industry, partnering with a trusted, internationally recognized provider ensures the resilience and performance that your operations demand.For over 40 years, industries around the world have trusted SEL solutions to keep their critical systems and processes running.Explore our key offerings:
- Protective relays that provide advanced, comprehensive protection—including arc-flash mitigation—for motors, generators, overhead catenary systems, and onsite substations.
- Wide-area communications solutions that use satellite clocks to ensure reliable, precisely synchronized communications.
- Power management and microgrid control solutions that balance utility power and onsite generation, help integrate renewables, and provide seamless islanding and resynchronization to optimize your system for stability and cost.
- Cybersecure networking solutions and rugged network switches that are purpose-designed for applications such as facility operations, process control, and automation.
- Rugged industrial computers, automation platforms, and powerful programmable logic controllers for process control, system automation, data collection, remote monitoring, and more. Fanless designs provide a service life that can be measured in decades.
- Advanced revenue meters and power quality monitors that help optimize power usage and provide insight into the health of your electric power system.
Discover the SEL Difference
Ten-Year WarrantySEL backs every product with a worldwide, ten-year warranty. If a product fails under warranty, we’ll repair or replace it at no cost.
The SEL warranty Custom-Engineered SolutionsSEL solutions solve engineering challenges in industries around the globe. SEL Services can further customize, design, and deliver systems that provide the precise functionality you need.
Learn more about our services and custom solutions Local Support, Global ExpertiseTechnical support is available at no cost for the entire service life of every SEL product. With application engineers located around the world, we can provide expert support no matter where you are.
SEL quality, reliability, and ongoing support World-Class ManufacturingWe design and manufacture our devices in factories we own and operate in the U.S.A. We prioritize vertical integration and supply chain security to ensure the quality, reliability, and availability of our products, because we realize how our supply chain affects yours.
Securing the supply chain Short Lead TimesOthers measure lead time in weeks. SEL measures it in days. We keep lead times down with a robust manufacturing infrastructure, streamlined processes, supply chain risk management, and strategic vertical integration.
Products that ship within ten days