Allen-Bradley 1745-E103 Programmable Controller

The Allen-Bradley 1745-E103 is a SER B rack expansion unit for the SLC-100 system, designed to boost backplane I/O capacity by adding additional expansion slots to an existing installation. This pre-owned module is part of the 1745 expansion family that pairs with a SLC-100 CPU to extend control capabilities in automation setups. Commonly used in manufacturing and process automation to expand digital I/O, the 1745-E103 handles the same backplane interface and electrical characteristics as other 1745 expansion units, ensuring compatibility within a legacy SLC-100 network. When replacing or upgrading legacy control systems, this SER B 1745-E103 can be used to maintain existing I/O configurations while extending capacity, making it a viable option for refurbishing or sustaining older lines.