Water and Wastewater

Advanced Power Management Solutions

SEL power protection solutions substantially improve plant uptime by proactively detecting anomalies in electrical systems and components before extensive damage occurs. SEL protects feeders from catastrophic arc-flash events and extends the life of pump and blower motors by employing thermal models that reduce stress to equipment. Additionally, our power quality and revenue class meters help reduce energy bills while providing power quality data that reduces troubleshooting times and visualizes the health of your power system.  

After the project SEL continues to support our products for as long as they are in service through application engineers in your region that have field experience and the know-how to get the most from your system, at no charge.

Whether it is a retrofit to upgrade existing systems, power system study, arc-flash mitigation, automation, or a complete power management system, SEL's internationally recognized engineering services has the depth and breadth of experience to provide simple, elegant solutions, including many of the world’s most complex and expensive power systems. 

Customer Focus

SEL provides innovative, technologically advanced asset protection and power management solutions in many complex water and wastewater systems, including:

  • California Department of Water Resources, USA
  • Consórcio Sanear Paraíba, Brazil
  • Changzhou Lihe Water Plant, China
  • Saline Water Conversion Corporation, Saudi Arabia
  • Middlesex County Utilities Authority, USA
  • CEA del Estado de Baja California, Mexico
  • City of Toledo, USA
  • Metropolitan Water Reclamation District of Greater Chicago, USA
  • Tarrant Regional Water District, USA
  • Los Angeles Department of Water & Power


Introducing the SEL-2411P Pump Automation Controller

Designed specifically for pump controllers in wells, tanks, and waste lifts, the SEL-2411P is easy to install and comes preprogrammed for your water and wastewater applications.

SEL powerMAX Power Management Solution

powerMAX Power Management and Control Systems combine ultra-high-speed protection and the best control schemes available to achieve superior power system robustness.

SEL Engineering Services—Innovative, High-Quality Solutions

Discover professional engineering services from SEL.

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