Schweitzer Engineering Laboratories
Schweitzer Engineering Laboratories, Inc. (SEL) works to make electric power safer, more reliable, and more economical. We provide products, solutions, and services for the protection, monitoring, control, automation, security, communications, and metering of electric power systems worldwide.
All SEL products include a ten-year worldwide warranty and exceptional customer support. In the most recent study of the protective relay marketplace by Newton-Evans Research Company, North American electric utilities ranked SEL #1 in technology, price, service and support, ease of use, and cybersecurity.