Allen-Bradley 1746-IM16 SLC 500 16-Channel AC Input Module

Description

The Allen-Bradley 1746-IM16 is a discrete AC input module designed for the SLC 500 PLC system, featuring 16 independent input channels for reliable field signal collection in industrial automation setups. It supports a working input voltage range of 170-265 V AC, 47-63 Hz, with a nominal input signal of 200/240 V AC. Key electrical specifications include a backplane current draw of 0.085 A @ 5 V DC, a nominal input current of 12 mA @ 240 V AC, and the ability to withstand 1.6 A surge current for up to 5 milliseconds. The module has a off-state voltage of 50 V AC and off-state current of 2 mA, with channel signal delays of 35 milliseconds (off to on) and 45 milliseconds (on to off). Designed for flexible integration, it is compatible with any SLC 500 chassis, and can be installed in local racks, expansion racks, or as part of a distributed I/O system. It is optimized for connecting 200/240 V AC signal devices, and can be used with DC input equipment when paired with an external intermediate relay providing AC voltage. As a mature, high-reliability component, it serves as a cost-effective solution for maintenance, retrofits, and spare part replacement in existing SLC 500 architectures, ensuring stable signal integrity and system performance.