Allen-Bradley 802M-NX23 Limit Switch

Allen-Bradley 802M-NX23 is a two-circuit limit switch in the Bulletin 802M family from Allen-Bradley (Rockwell Automation), catalog NX23. This factory-sealed, standard two-circuit device is designed for reliable end-of-travel and position sensing in industrial equipment, delivering dual independent switching paths in a compact enclosure. The 802M family is known for its two-circuit design and sealed construction, with installation options including front mounting via two clearance holes for #10 screws. The NX23 catalog variant identifies a specific model within this family, intended to integrate with Allen-Bradley control systems and legacy 802M replacements. The switch is built to endure typical factory environments where protection against dust and moisture is beneficial, and it provides predictable actuation and signaling for downstream automation. In practice, the NX23 protects machinery and helps coordinate control logic by providing a reliable, dual-channel sensing point for automated lines and equipment that relies on precise end-of-travel detection. As part of the 802M lineup, it follows Rockwell’s approach to compact, maintainable limit-switch hardware that can be substituted within the same family when maintenance or upgrades are needed.