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Product

Introducing the SEL-787L Line Current Differential Relay

The SEL-787L is an economical and dependable line current differential protection solution offering arc-flash protection, fault locating, high-impedance fault detection, and more—making it an effective choice for overhead and underground lines, feeders, and distributed generation tie-ins.
Product

Versatile and Powerful Computing Platform

Meet the SEL-3350 3U computing platform, the next generation of the popular SEL-3530 RTAC. With dense I/O and five times the processing power, it is ideal for RTU replacements and substation gateway applications.
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.
Support

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