Allen-Bradley 856T-BSB4 Beacon Module

Allen-Bradley 856T-BSB4 Beacon Module is a 70 mm stack-light beacon that provides a red strobe LED indicator on a single circuit, designed for 24 V AC or DC operation. It belongs to the 856T beacon family and is intended to drop into standard 70 mm signaling towers, delivering a bright, quickly noticeable alert in industrial automation environments. The module supports selectable strobe modes via DIP switches, allowing either a single-strobe or a double-strobe pattern at approximately 1.4 Hz, enabling simple customization of signaling to suit different processes or alarm scenarios. With its compact single-circuit design, the BSB4 can be integrated with other 856T beacon modules to create a tailored signaling stack in control panels or machine enclosures, preserving panel space while providing clear, color-coded status indication.