SEL motorMAX

Smart Motor Control for Low-Voltage Systems

The motorMAX Low-Voltage Motor Management and Protection System is the SEL smart motor control system for low-voltage motor control centers (MCCs). This scalable system includes protective relays, managed network switches, real-time automation controllers (RTACs), precise time sources, and machine interfaces for local and remote visualization and control.

  • Seamless integration with the SEL powerMAX Power Management and Control System allows operators to manage a facility’s power system, including end devices, from a single HMI screen.
  • No programmable logic controllers (PLCs), associated wiring, pushbutton controls, or interposing relays minimizes interconnect cabling.
  • Arc-flash detection (AFD) increases safety by reducing incident energy. All incoming breakers are signaled to trip in <16 ms after an arc event anywhere in the MCC.
  • SEL-849 Motor Management Relays and SEL-751 Feeder Protection Relays provide more data than traditional MCC components, which gives a better insight of end devices’ operation.
  • By using SEL components, the system can achieve higher safety integrity level (SIL) ratings.
  • Oscillography and Sequence of Events (SOE) recording enable online diagnostic analysis.
  • The delivery method reduces the time and cost of installation, startup, and maintenance.


motorMAX Arc-Flash Demonstration: Motor Management and Protection

To validate the arc-flash detection performance of the motorMAX Low-Voltage Motor Management and Protection System, SEL performed a series of tests at a high-current laboratory.

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