Allen-Bradley 800T-XA7 Auxiliary Contact Block

The Allen-Bradley 800T-XA7 is a shallow, 30-mm auxiliary contact block for Bulletin 800T pushbuttons that provides two-form signaling with one normally open (NO) and one normally closed (NC) contact. Designed to mount directly to the 800T operator family, it uses a screw attachment for secure, compact installation and its low-profile design keeps panel layouts tidy in space-constrained cabinets. This block extends the functionality of a standard 800T pushbutton by adding an additional signaling contact without the need for a separate relay, enabling straightforward interlock and status circuits in machine controls. Typical applications include signaling start/stop logic, machine interlocks, and feedback paths where a NO contact drives a downstream device while the NC contact provides a complementary feedback signal, all within a single 30-mm accessory footprint. The 800T-XA7 is part of Allen-Bradley’s 800T accessories lineup and is intended specifically for use with Bulletin 800T pushbuttons, offering a compact form factor and simple wiring for reliable two-form signaling.