The ABB OTM80F4C10D380C is a 4‑pole motorized automatic transfer switch (ATS)/change‑over switch designed for automatic or manual transfer of electrical loads between two independent three‑phase AC power sources, such as utility mains and a backup generator. It is part of ABB’s range of motorized change‑over switches suited for low‑voltage distribution systems. The device supports motorized remote control for automatic switching as well as manual override via a handle. A mechanical interlock ensures that the two power sources remain isolated and cannot be connected at the same time, enhancing safety and continuity of power in industrial and commercial installations.
