Introducing the SEL 9 Series Relay Platform

40 years of power system protection expertise—distilled into one relay platform.

The SEL 9 Series platform is software-configurable into three relay options: line, feeder, and transformer. Keep inventory of just one device, and select the application when deployed.

And best of all, the 9 Series uses the proven protection algorithms you already know and trust.

Let Austin and Michael, from the product development team, tell you a little more about the SEL 9 Series.

Want to know more about the SEL 9 Series?

Send us your questions, and our team will answer.

Meet the First: The SEL-9L Line Relay

The SEL-9L protects lines of any length and is an ideal choice for subtransmission applications.

  • Five zones of subcycle distance protection—Quickly clear faults and prevent potential equipment damage. 

  • Communications-assisted tripping—Coordinate tripping among relays with overlapping protection zones.

  • Advanced trip circuit monitoring—Reduce operations and maintenance expenses with this SEL-exclusive capability.

Simple Settings Configuration

SEL Grid Configurator software, included at no cost with your SEL 9 Series relay, provides easy access to all the tools and information needed to set, test, and commission your devices—plus powerful visualization and reporting.

Its powerful, user-friendly features include customizable HMI screens, a spreadsheet-style settings editor, custom filters, multiple-device settings configuration, protection visualization, and comprehensive reporting tools.

Want to see how SEL Grid Configurator works? We have resources for you:
SEL Grid Configurator How-to Videos

Learn how to use core features and tools.

eGRID 101: Introduction to SEL Grid Configurator

This no-cost e-learning course explains how to use Grid Configurator to interface with, commission, set, and program SEL devices.