Allen-Bradley 800MS-CA1 Push Button Switch

Allen-Bradley 800MS-CA1 is an operator for a 22.5 mm pushbutton switch in the 800M family; its CA1 designation identifies a specific operator style within that family, and the unit is designed to be paired with the 800M-XA contact block to form a compact, field-reliable control input for standard industrial panels. When used together, the 800MS-CA1 operator and 800M-XA contact block deliver a two-pole contact arrangement consisting of 1 normally open and 1 normally closed circuit (1NO/1NC), with the contact block providing quick-connect terminals for fast, vibration-resistant wiring. Termination options for the XA contact block commonly include two 0.110 inch by 0.032 inch push-on connectors or one 0.250 inch by 0.032 inch connector, depending on the specific block variant, enabling flexible harnessing in dense control cabinets. This 22.5 mm pushbutton solution is widely used for operator input in automation and machine control systems, offering a modular, replaceable footprint that matches standard panel cutouts and leverages the broader 800M family well known to controls engineers.