If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. ABB NDCU-51C 64448021 Inverter Accessories Precision Drive Control for Industrial Applications The ABB NDCU-51C 64448021 Drive Control Unit is a high-performance control module designed to serve as the core control component in ABB inverter and drive systems. It manages motor speed, *Your Name: *Your Email: *Your Name: *Vdcode: Submit