The Allen-Bradley 1746-A10 SLC 500 10-slot rack chassis is a 10-slot modular chassis designed for the SLC 500 system, described by Rockwell as a SLC System, 10 Slot Chassis — Modular Hardware Style. Catalog number 1746-A10 identifies this chassis, which serves as the base rack for mounting processors, I/O modules, and communications modules to build scalable PLC configurations. As a chassis-only infrastructure within the SLC 500 family, it accepts 1746-series modules and provides the backplane and mounting framework used to expand an existing SLC 500 PLC for additional I/O capacity in industrial automation environments.
