Allen-Bradley 870-N30 Sensing Head

Allen-Bradley 870-N30 Sensing Head is the replaceable sensing head for Allen-Bradley Bulletin 870 Proximity Limit Switch assemblies. It functions as the sensing element that detects metal targets and transmits the actuation signal to the limit-switch circuitry when paired with the 870 main body. This head is part of the 870 family and is designed for compatibility with existing Bulletin 870 installations, providing a direct, plug-in component for maintenance and spare-part stocking. The 870-N30 version is specifically associated with the 870 Proximity Limit Switch lineup and supports standard mounting interfaces used in industrial automation hardware. In typical factory settings, these sensing heads enable reliable limit sensing of moving parts, guards, and tooling in environments such as conveyors, presses, and automated processing lines, helping ensure accurate control and safety interlocks. For buyers maintaining legacy equipment, the 870-N30 offers a straightforward replacement option that minimizes downtime and avoids rework to accommodate newer sensor families. Note that all specifications refer to the compatible 870 Proximity Limit Switch family and the 870-N30 variant; confirm exact mounting fit and electrical interface with your existing 870-series main unit to ensure seamless integration.