The ABB CA4-22ERT auxiliary contact block is designed for seamless integration into standard industrial environments, providing reliable operation of auxiliary and control circuits. This 4-pole front-mounted block features 2 normally open (N.O.) and 2 normally closed (N.C.) instantaneous contacts, ensuring versatile functionality. It is equipped with screw terminals compatible with ring tongue ferrules, offering a secure and efficient connection. The CA4-22ERT is compatible with various contactors, including the 3-pole AF26..38(Z)B-30-00RT and 4-pole AF09..38(Z)B-40-00RT models, thanks to its terminal assortment that matches the marking of these contactors. The non-detachable screw with a conic washer ensures fast and secure cable tightening, enhancing the reliability and safety of your electrical installations. Ideal for front mounting, this auxiliary contact block is a robust solution for enhancing the functionality of your control systems.