The Schweitzer Engineering Labs SEL-751A Feeder Protection Relay is a unit designed for industrial automation and motion control applications. Manufactured in the United States, this Fedder Protection Relay model, SEL-751A, by Schweitzer Engineering Laboratories is a reliable unit used for protecting feeders in various industrial settings. With its controller platform and specific model number, 751A52C3C1G71850210, this unit is a single quantity product that offers advanced protection features for efficient operation.