The ABB DPT‑CB011 series is a family of dual‑power automatic transfer switches (ATS) designed to automatically manage and transfer electrical loads between a primary power source and a backup source (e.g., mains utility to generator) when supply conditions change. These units provide automatic change‑over functionality for critical three‑phase or single‑phase electrical systems, ensuring continuity of power without manual intervention. The CB011 designation refers to the internal control logic level that includes advanced fault detection and transfer conditions such as under‑voltage, over‑voltage, and phase failure detection. This makes the DPT‑CB011 suitable for commercial, industrial, and institutional installations where reliable uninterrupted power is needed