Motor Protection

Keep Your Processes Running With SEL Reliability

SEL understands how critical it is to provide continuous reliable motor protection. That is why SEL offers an industry-leading product with the most extensive warranty. SEL motor protection relays give customers a custom fit motor protection system with easy installation, for both retrofit and new application.

Advantages of SEL Motor Protection

• SEL products lead the industry with the highest mean time between failure (MTBF) (over 300 years)
• Ten-year, no-hassle warranty
• Easy application covering most protection functions. Low base prices with optional motor protection application add-in cards.

Use SEL for Complete Motor Protection

• Apply the SEL-749M Motor Relay to control and protect three-phase induction motors, including two-speed and reduced-voltage start motors.
• Apply the SEL-701 Motor Protection Relay to protect and monitor induction motors with patented thermal modeling and innovative metering, reporting, and control.
• Apply the Best-in-Class external SEL-2600A RTD Module.
• The SEL-710 Motor Protection Relay features the industry's most accurate motor protection together with settings, mounting, and communication options designed for easy application. The SEL-710 with AccuTrack™ Thermal Model determines the longest safe starting time (no speed switch needed) and reduces wait time between motor starts up to 33%. Choose from eight communication protocols, including Ethernet, Modbus®, IEC 61850, and DeviceNet® for fast integration into control systems.

Mounting accessories for replacing aging relays with SEL motor protection devices.

SEL-710 Motor Protection Relay

Motor Protection Technical Papers

• Aspects of Overcurrent Protection for Feeders and Motors
• Comparing Motor Thermal Models
• Using Thermal Limit Curves to Define Thermal Models of Inductions Motors

Protect Your Motor System With SEL-749M Motor Relays

SEL University - Induction Motor Protection  (APP 405)