The ABB-1SCA108252R1001 OHBS12 The ABB-1SCA108252R1001 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 nan and features nan poles for versatile applications. Equipped with advanced capabilities like Manuel Transfer Switch, this transfer switch is ideal for professional installations. Packaged in a BOX format, the ABB-1SCA108252R1001 combines reliability and efficiency, making it an excellent choice for critical power systems.