SEL provides complete power system protection, control, monitoring, automation, and integration for utilities and industries worldwide. SEL products, systems, services, and training make …

SEL invents, designs, and builds digital products and systems that protect, automate, and control critical infrastructure around the world. This technology prevents blackouts and enables …

SEL University trains power system engineers, technicians, and managers to meet their immediate and long-term workforce training needs. Our experienced instructors and …

The SEL-751 is the right solution for industrial and utility feeder protection, with conventional/low-energy analog (LEA) current and voltage input support, flexible I/O options, easy mounting, …

Follow SEL's journey from the first microprocessor-based relay invented in 1982 to our continued innovation on the cutting edge of power system protection.

The SEL-2731 provides deny-by-default network access control and secure communications management by securing the control plane with OpenFlow 1.3 over Transport Layer Security …

SEL proporciona protección completa, control, monitoreo, automatización e integración de sistemas de potencia para empresas suministradoras de energía e industrias de todo el …

SEL is an internationally recognized designer and manufacturer of products that protect and control electric power systems worldwide. We are problem solvers, inventors, and doers. At …

We are employee owners We’re proud to be a 100-percent employee-owned company. Employee ownership lets SEL put our customers and employees first. It empowers employees to improve …

A sede da SEL possui 5.000 metros quadrados de área dedicados a proteção, controle e automação de sistemas elétricos de potência, com capacidade de produção de até 1500 …