The Sick ELGS3-0330D511 is a 15-30VDC standard light grid 2 meter range. It handles signal processing, communication, or logic functions as part of a PLC or machine control system, interfacing between the processor and connected I/O or peripherals. Key specifications noted on this listing include 15-30VDC, 30VDC. It is commonly used in control cabinets and PLC-based automation systems.
