AL16 contactors are mainly used for controlling 3-phase motors and generally for controlling power circuits up to 690 VAC or 220 VDC. The contactors can also be used for many other applications such as isolation, capacitor switching, lighting. The AL series 1-stack 3-pole contactors are of the block type design. Main poles and auxiliary contact blocks: 3 main poles, 1 built-in auxiliary contact, front and side mounted add-on auxiliary contact blocks - control circuit: DC operated with solid core magnet circuit. The polarity on the coil terminals (A1+ and A2-) must be respected - accessories: a wide range of accessories is available. AL contactors are fitted with low consumption DC coils and are suitable for a direct control by PLC outputs.