The ABB OTM_C10D 4P is a 4‑pole automatic transfer switch (ATS) / change‑over switch designed to provide reliable power source switching in three‑phase electrical systems. This type of device automatically transfers the load between two power sources — typically mains (utility) and an alternate source such as a generator or backup supply — when the primary source fails or returns to acceptable limits. It ensures continuity of electrical power for critical loads in industrial, commercial, or institutional applications.
