Allen-Bradley 800T-XD1 Normally Open Contact Block

Allen-Bradley 800T-XD1 is a 30 mm shallow-block contact block that adds a single normally open (NO) contact to Allen-Bradley 800T pushbutton assemblies, enabling an auxiliary signaling path within a compact control station without changing the primary switch action. As part of the 800T and 800H family of operator devices, the XD1 delivers a 1 NO contact configuration, allowing a second circuit or interlock to be monitored independently while preserving the tactile feel and electrical characteristics of the main 30 mm button. The shallow-block form factor is designed to fit alongside 30 mm 800T pilot devices in panel installations where space is at a premium, supporting clean, modular control station layouts and straightforward integration with standard wiring practices used in industrial automation. Cited specifically as 800T-XD1, this contact block completes the 800T PB accessory lineup by providing a dedicated NO contact for signaling and simple circuit conditioning, making it a practical choice when you need to extend the functionality of a 30 mm pushbutton without introducing a separate, larger relay block.