Allen-Bradley 800PXA Pushbutton Contact Block

Allen-Bradley 800PXA Pushbutton Contact Block is an auxiliary contact block designed to accompany Allen-Bradley pushbuttons in the 800-series family. It provides additional, independent electrical contacts to support signaling, interlocking, and remote monitoring in industrial control circuits, without altering the pushbutton operator itself. As part of the 800-series ecosystem, the 800PXA is built to integrate with compatible pilot devices and other 800-series components, preserving a compact panel footprint while expanding a single operator’s control interface. In practice, designers wire the contact block into PLC inputs, relays, or safety interfaces to monitor the position of a pushbutton and execute logic that governs machine startup, stop sequences, or interlocks. The exact configuration and electrical ratings for the 800PXA variant vary by model suffix and installation, so referencing the official Allen-Bradley catalog or a trusted distributor ensures you select the right version for your hardware and voltage class. This block is suited for applications across machine automation, packaging lines, and process control where a dedicated, isolated contact is required to sense pushbutton state without loading the operator's primary circuit.