Advanced motor protection relay
SEL-749M relay provides advanced motor protection and monitoring for three-phase motors.
SEL-749M relay provides advanced motor protection and monitoring for three-phase motors. Incorporating the company’s patented thermal overload protection technology and patent-pending Adaptive Overcurrent Element, the relay offers comprehensive protection, monitoring, and metering functions, including two-speed and reduced-voltage-start. It protects against locked rotor, running overload, and negative-sequence current imbalance through a patented thermal overload model. Technology tracks the heating effects of load and current imbalance while the motor is accelerating and running, handling all motor operation scenarios including cyclic overloads without false tripping.
www.selindustrial.com
SEL Industrial Solutions Group
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