The ABB TA25DU‑4.0M is a compact thermal overload relay designed to protect motors and three‑phase circuits from overload and phase loss conditions. It is part of the ABB TA series of overload relays that mount directly on compatible contactors (e.g., A9…A40). The device features a trip‑free mechanism, temperature compensation for accurate response, selectable manual or automatic reset, and auxiliary contacts for signaling and control feedback. It provides reliable and fast protection for motors in industrial and commercial control panels.
