Allen-Bradley 855T-B10FN5 Electromechanical Timer Relay

Allen-Bradley 855T-B10FN5 is a 70 mm control-tower signaling light from Rockwell Automation’s 855T family, designed to mount on standard 70 mm bases for clear, distance-visible status indication on automation equipment. The B10FN5 variant uses LED illumination in a steady configuration and comes in a black housing for easy integration with other 855T components; catalog listings commonly show 120 VAC operation, making it suitable for typical North American control panels. This signaling module is used to convey machine states such as run, fault, or process condition across lines, conveyors, presses, and robotics cells, and it can be combined with other 855T or 856T modules to create multi-color signaling stacks in a single machine or production line. Built for reliability in industrial environments, the 70 mm tower light offers long-life illumination and straightforward installation as part of Allen-Bradley’s signaling ecosystem.