Allen-Bradley 855F-P10SC20B10Y4L4 Tower Light Stack Assembly

The Allen-Bradley 855F-P10SC20B10Y4L4 Tower Light Stack Assembly is a preassembled 70 mm control tower light designed to provide highly visible machine status indication on industrial automation equipment. It mounts on a 10 cm aluminum pole with a 2 m flying-lead cable and uses red lenses for Level 1 and Level 2, delivering both steady and 2 Hz flashing LED signals from 120 VAC, 60 Hz. With IP65 and NEMA 4/4X/13 protection, a black housing, and LED life up to 100,000 hours, this stack light is suited for production lines, packaging equipment, conveyors, assembly areas, robotic cells, and industrial control panels in demanding environments; it supports long-life operation and low leakage current immunity of 3 mA. The model is discontinued, though a functional replacement is available, and common replacements include Allen-Bradley 856TC-P10BA3Y4, 855F-P10SC20B10Y4, and 855F-T10SC20B10L4.