Allen-Bradley 855T-G24SA1 is a single-tone sound module for Allen-Bradley stack-light signaling, designed to be mounted on top of a stack to provide audible alarms. The grey-housing variant delivers 13 selectable tones via a piezo-style transducer and operates from 24V AC/DC with a current draw of 75 mA. In stacked configurations, the SA1 module uses a single circuit and can be paired with up to four light modules on the same stack. Tone output is specified as 97 dB or 85 dB at 1 meter depending on the tone.
