Allen-Bradley 1745-E153 is the SLC-150 expansion unit that extends the I/O capacity of an SLC-500 controller, adding 20 external input circuits and 12 external output circuits. The module accepts 10–30 V DC current-sinking inputs and provides 12 hard-contact outputs rated for 10–250 V AC or 10–125 V DC. It is designed to expand digital I/O in SLC-150 installations for industrial automation and machine control, enabling more inputs for sensors and more outputs for relays, indicators, or actuators.
