The ABB 2TLA822201R6000 is an FII-4-30-150 Focus Curtain — a safety light curtain used to guard hazardous machinery zones by detecting operator intrusion into a defined area.
As a safety light curtain, the FII-4-30-150 is typically mounted at the access point of a guarded area — such as a press, robot cell, or conveyor infeed — to create a protective field that stops hazardous motion when interrupted.