ABB A145-30 Industrial Electro-Mechanical AC Contactor

ABB A145-30 is a heavy-duty 3-pole AC contactor with a 120 V AC control coil, designed for motor starting, isolation, bypass, and distribution in demanding industrial power circuits. It is rated for AC-1 switching up to 250 A, making it suitable for controlling large motors and other high-current loads in industrial settings. The coil is 120 VAC, and ABB notes that all AC-operated catalog numbers in the A145 family include a 120 VAC coil. The device is rated for operation up to 600 V AC. It carries UL 508/CSA C22.2 general-use approvals for electrical control gear. As part of ABB’s A145 line, it is commonly used for motor control across applications and is available in configurations such as 3PST-NO for straightforward three-pole switching. The A145 family supports operation at 50/60 Hz with coil variants and ratings documented across ABB’s catalog and datasheets.