Siemens 6ES5444-3AA11 Analog Input Interface Module

Siemens 6ES5444-3AA11 is a 16-channel digital output module for the SIMATIC S5 family, compatible with S5-130 and S5-150 racks. This compact, non-isolated module provides 24 V DC switching across 16 outputs, with a maximum of 2 A per channel, making it suitable for controlling relay coils, contactors, and other 24 V loads from an S5 controller. The unit is offered under Siemens order number 6ES5444-3AA11 and is designed to plug into the S5 backplane bus to extend discrete I/O without external supply for small loads. As part of the S5 I/O portfolio, it supports straightforward integration into existing S5 installations, enabling centralized control from the central processor while keeping wiring simple and compact. Typical applications include automation panels, machine control where compact footprint and reliable 24 V signaling are required, and scenarios where multiple digital outputs must be driven directly from the S5 CPU without intermediate wiring complexity.