The Allen-Bradley 855PB-B24ME322 is a 24V AC/DC panel-mount LED beacon with a green lens, designed for industrial signaling as part of the 855PB family. It uses a black polycarbonate housing with a 45 mm round front and central mounting for 22 mm or 30.5 mm bores via an adapter kit, and it supports selectable steady or flashing operation via an external terminal connection. The beacon draws about 35 mA at 24 V (50/60 Hz) with a supply tolerance of ±10% and a turn-on leakage current of at least 3 mA; when set to flashing, it runs at 2 Hz. It carries IP65 and NEMA 4X protection ratings, and its dimensions are 72 mm in height with a 45 mm outer diameter, weighing roughly 40 g.
