The ABB A145‑30‑11 is a 3‑phase AC contactor designed for industrial and commercial electrical control applications. It switches three main power poles to control motors and other heavy loads. This contactor is part of ABB’s A‑series block contactors and is suited for motor starting, distribution, bypass switching, and general load control. The control coil is designed to operate from a 220–240 V AC supply and the device combines robust construction with reliable contact performance for frequent switching.