Allen-Bradley 855T-NX19 Stack Light Base Device

The Allen-Bradley 855T-NX19 Stack Light Base is a DeviceNet base used to mount 855T Control Tower Stack Light modules, providing the electrical interface through a 5-pin male connector for signaling and power distribution. As a base unit, it accepts light modules from the 855T family, enabling color-coded status indicators for equipment such as conveyors, presses, robotic cells, and other automated lines, so operators can quickly assess machine state from the control panel or workstation. The base relies on the DeviceNet network to carry signaling data to the individual light modules, while the light modules themselves are sold separately as part of the Rockwell Automation signaling system, which means you purchase the base to support the modules rather than a complete light assembly. This base is a genuine Allen-Bradley component designed specifically for the 855T Stack Light ecosystem and is identified by the NX19 variant designation, making it compatible with other 855T base and module configurations in standard Control Tower installations.