Schweitzer Engineering Laboratories, Inc.(SEL), is a leading manufacturer of power system protection relays and control system from Pullman, WA, USA. The products are employed in:

• Electrical generation plants
• High Voltage transmission system grid
• Distribution substations
• Industrial electrical installations

SEL was founded by Dr. Edmond O. Schweitzer III, Ph.D. in 1982. The company has been certified ISO9001 Quality System Standard since 1994. SEL products carry a Ten-Year warranty which is unmatched in the industry. This warranty is made possible by the results of SEL's passion for designing quality and reliability into all of their products.

For more information about SEL and products, please visit SEL's Website at www.selinc.com.