Fault Indicators and Sensors

SEL designs and manufactures fault indicators and sensors, supplying utilities around the world with products that help reduce fault-finding time so that power can be restored quickly after a fault occurs. SEL is the electric power industry's leader in fault indicator technology, producing the widest variety of fault indicator products.

Advantages of SEL Fault Indicators:

  • They help utilities restore service faster.
  • They reduce fault-finding time by 50 percent.
  • Compact, lightweight construction simplifies installation.
  • Strong, simple clamping mechanisms fit various conductor sizes, ensuring fast, reliable installation.
  • Displays are easy to spot and read and require fewer holes to be drilled in a transformer cabinet for installation.
  • Any SEL fault indicator that uses batteries relies on patented technology, offering the longest cumulative flashing-hour life in the industry. 
  • Require little, if any, maintenance.
  • Magnetic cable guides keep remote display and sensor wiring neatly in place.
  • Standard and custom solutions are available.

Questions? Contact Us!

If you have any questions about SEL products, services, solutions, or support, please contact us. Our service and support professionals are ready to provide the answers you need.

Unbeatable Support

SEL support teams are stationed in regional offices around the world and staffed with application engineers who are experts in our products and in power system applications.

Technical support for SEL-manufactured devices is always free. No matter how often you need to call or how long your SEL products have been in service, you’ll reach an SEL expert who can provide the service and support you need.

Our cybersecurity team is always ready with the information and resources needed to keep your OT networks and critical systems secure and working effectively. Cyber services support contracts can include incident response, audits, system hardening, and more, depending on your anticipated needs.

More about SEL warranty and support