ABB TA42 thermal overload relay is a Class 10, adjustable overload protection device designed to pair with ABB AF9–AF30 contactors to protect motor circuits in low‑voltage drives. Variants TA42DU-25M (18.0–25.0 A) and TA42DU-32M (22.0–32.0 A) offer different current-setting ranges to tailor protection to the motor's full‑load amperage. These overload relays are part of ABB's TA family and are used for main‑circuit protection in electrical panels and motor control installations.
