The ABB CAL5‑11 is a side‑mount auxiliary contact block designed to provide additional control contacts for use with ABB contactors and relays. It offers a combination of one normally open (NO) and one normally closed (NC) contact in a compact modular block. The contact block is engineered for reliable auxiliary switching in control circuits and can be mounted on the side of compatible contactor systems to extend control and signaling functionality. Its robust construction and screw terminal connections ensure dependable operation in industrial control panels and automation equipment.