When the beam path is interrupted, the curtain sends a stop signal to the safety circuit — standard practice for press brakes, robotic cells, and assembly lines where operator access to a pinch point or cutting area is required.
As a safety light curtain, the key selection parameters are detection capability (resolution and height), range, and response time — though those specific figures are not detailed in this listing. The eol_hot flag is the main decision driver here: if you are specifying this into a new design, confirm the lifecycle window; if you are replacing an existing unit on a live line, the Bulk package suggests it ships as a single unit, not a reel or tray, which is typical for a finished safety device.