The ABB-1SCA022771R7520 OT200E03CP 200A, 3P transfer şalteri (I-0-II) The ABB-1SCA022771R7520 by ABB is a high-performance automatic transfer switch from the nan series, designed to ensure seamless power transitions. It supports a current rating of 200A and features 3P poles for versatile applications. Equipped with advanced capabilities like Manuel Transfer Switch (I-0-II), this transfer switch is ideal for professional installations. Packaged in a BOX format, the ABB-1SCA022771R7520 combines reliability and efficiency, making it an excellent choice for critical power systems.