Allen-Bradley 855T-B10FN8 is a flashing incandescent lamp module for Allen-Bradley 855T control tower stack lights. It features a black housing and a yellow lens, rated for 120V AC full voltage (voltage code 10), and is designed to be used as the replacement lamp in 855T flashing-incandescent configurations. Rockwell data notes that flashing incandescent modules operate around 2 Hz for voltages like 24V, 120V, and 240V with an ON/OFF duty cycle of 1:1, while 12V versions run about 1.5 Hz. This module enables a concise, easily visible status signal in industrial control panels and automation stack lights.
