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The Allen-Bradley 1746-IB16 is a DC input module designed for robust interfacing with signal devices, operating within a voltage range of 10-30VDC and supporting a nominal 24VDC. It offers sixteen input channels in a single group configuration, utilizing a sinking wiring configuration ideal for connections to various switches and electrical components like proximity sensors and relay contacts. The module features a response time of 8 ms for both ON and OFF states and is recognized for its durability, withstanding heat dissipation of 0.22W per input and a total of 3.6W for the entire module. Designed for flexibility, it can be mounted in any SLC 500 series chassis, employs LED status indicators for easy monitoring, and an easy-to-remove terminal block for seamless maintenance. This device meets stringent safety and performance standards, certified by UL, CSA, and CE, and is suitable for operation in a range of environments, withstanding significant shock and vibration while operating effectively between 0 and 60°C.