ABB AL30-30-10 Industrial Electrical Contactor

ABB AL30-30-10 is a 3-pole DC-coil industrial contactor designed for direct PLC control in 24 V DC systems, suitable for motor control and load switching in automation environments. It features a single normally open auxiliary contact and screw-terminal connections for the main and auxiliary circuits, with the main contacts rated up to 690 V and a rated making capacity of AC-3 equal to 10 times the rated operational current (Ie). The coil draws 3.5 W both pull-in and hold, reflecting ABB’s low-coil-power design, and the device offers a conventional free-air thermal current (Ith) of 16 A for enclosed operation (40 °C) and 65 A for open-contact configurations. Duty and switching limits include a maximum electrical switching frequency of AC-1 at 600 cycles per hour, AC-2/AC-4 at 300 cycles per hour, and AC-3 at 1200 cycles per hour, making it capable of frequent on/off sequences in appropriate applications. This specific variant, AL30-30-10, uses a 24 V DC coil, and the AL30 family encompasses other coil voltages in the same form factor to match different control systems. ABB notes that AL30 contactors are designed for straightforward direct control by PLC outputs, delivering reliable mechanical life and compact three-pole operation for panel and system control where 24 V DC control signals are standard.