The 4-pole AL9 contactors are mainly used to control power circuits up to 690V AC or 220V DC. The contactors can also be used for many other applications such as insulation, capacitor switching, lighting. The 1-level, 4-pole contactors of the AL... series are designed in block construction., - Main poles and auxiliary contact blocks: 4 main poles, without built-in auxiliary contacts, the installation of additional front or side auxiliary contact blocks is possible., - Control circuit: DC operation with permanent magnet circuit., The polarity on the coil connections (A1+ and A2-) must be observed
