SEL equipment handles extreme operating environments with ease and ensures reliable power under the most demanding conditions. Our medium- and low-voltage protective relays easily retrofit into existing metal-clad switchgear and include our innovative arc-flash technology to protect personnel and equipment. Our industrial computing and communications products improve the reliability of human-machine interfaces (HMIs) with simple, intuitive software that empowers employees with real-time power system information.
SEL’s power management, process control, and automation products are designed for the extreme environmental conditions common in mining and metal-forming industries. SEL products monitor and protect expensive equipment, ensure an uninterrupted supply of electric power in every corner of your site or facility, and are backed by our ten-year, no-questions-asked warranty.
SEL provides power protection, monitoring, and control solutions to respected businesses around the world, including:
“I use SEL not just because of their industry-leading products and technical support,...but because SEL and its people are committed to doing the job right and making the user (me) happy with the end product.”
-Tim Burttram, Plant Electrical Engineer & Senior Project Manager at Cascade Steel Rolling Mills
“Reliability is a big issue due to the exposure a public utility has, and our local utility decided to swap out their other relays and go exclusively with the SEL-351 Relays. My recommendation (to choose SEL) wasn’t even challenged.”
-Charlie Adams, Senior Engineer at Marathon Oil
”SEL's field technical support has been very valuable to me. During our upgrade project, I got fast and reliable technical answers. And that’s simply how good SEL support is. I know we can count on SEL for that level of support every time.”
Don Elliott, Senior Engineer/Power Manger at Resolute Forest Products
Increasing energy efficiency
Life-saving protection at the speed of light
Designing, building, and commissioning complete power systems
Versatile power protection for industrial feeder applications
Complete primary and backup protection from all types of faults
Custom fit motor protection systems with easy installation, for both retrofit and new applications