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Newsroom

The IT World Today and the Enemies of Complexity and Opacity

The following letter from SEL Founder and President Edmund O. Schweitzer, III was sent to SEL employees following the faulty CrowdStrike update on July 18, 2024.
Product

Introducing the SEL‑787L Line Current Differential Relay

Economical and dependable line current differential protection with arc-flash protection, fault locating, high-impedance fault detection, and more—an effective choice for overhead and underground lines, cables, feeders, and distributed generation tie-ins.
Thought Leadership

Cybersecurity Center

See the latest from the Cybersecurity Center, where SEL experts ask questions, analyze challenges, and share ideas about ICS and OT cybersecurity.

Product

SEL-2731 Provides Networking Flexibility

Gigabit-capable ports, a rugged design, and support for SEL and third-party SFPs all make our newest managed Ethernet switch, the SEL-2731, a flexible option for any utility or industrial networking need.
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