Allen-Bradley 855H-BD30AD Industrial Horn is a gray ABS-housed audible alarm that operates on 10-30V DC and delivers 100 dB across 10 selectable tones. It uses a standard base for surface or on-the-wall mounting with conduit openings and hole plugs, and draws about 25 mA at 10-30V DC. Built to harsh environments, it carries IP66 protection and a 3R NEMA rating, with an operating temperature of -25 °C and storage to -40 °C.
