The Telemecanique XUSL4E3BB081NM is a safety light curtain, listed under the Light Curtain sub-category. It is a through-beam photoelectric safety device used to guard hazardous machinery access points — typically press brakes, assembly stations, or robotic cells — by creating an invisible detection field that stops the machine when interrupted.
As a safety light curtain, the XUSL4E3BB081NM mounts to guarding frames or machine columns using the manufacturer's standard brackets. The emitter and receiver columns must be aligned within the specified range and connected to a safety-rated controller or interface module to achieve the required SIL/PL rating for the application.