AutomationDirect ZL-LTB16-24 Sensor Input Module

ZIPLink sensor input module ZL-LTB16-24 is a 16-point 24 VDC input module for AutomationDirect’s ZIPLink I/O family, designed to mount on a standard 35 mm DIN rail and connect directly to a PLC. It provides sixteen LED-indicated inputs and a dedicated power LED, with two PLC input groups and separate common references to support flexible wiring configurations for sensors, wiring in sinking or sourcing arrangements. The device is powered from a 24 VDC bus and is documented as a ZIPLink component with LED status indicators on the logic side, which aids in quick troubleshooting on the shop floor. The part is a retired item (listed as Discontinued April 2019) with ZL-LTB16-24-1 noted as a direct replacement; the original UL listing is E200031, RoHS-compliant, and CE declarations are available on the product pages, reflecting its compliance landscape. For design reference, AutomationDirect provides supporting documents including a 2D drawing and a STP 3D model, as well as installation and wiring guidance in the ZIPLink documentation. The ZIPLink naming and model lineage indicate this module was intended to expand a PLC’s digital inputs in a compact, field-mounted package, making it a candidate for legacy installations or for cross-checking against the current -1 replacement when planning upgrades or spares. In short, ZL-LTB16-24 is a 16-channel, 24 VDC DIN-rail input module with per-input LED indicators and dual input-group wiring, part of the ZIPLink line, now superseded by ZL-LTB16-24-1.