Allen-Bradley 1746-A7 Slot Rack with 1746-P1 Power Supply is a 7-slot SLC-500 rack chassis designed to host CPU and I/O modules for Allen-Bradley SLC-500 automation systems. The chassis provides seven module slots, with slot 0 typically reserved for the CPU or an adapter, on a common backplane. The unit includes the 1746-P1 power supply, which accepts 85–130 V AC or 170–265 V AC input and delivers power to the rack with a rated output current of up to 2 A. This configuration is used in factory automation applications requiring a simple, self-contained SLC-500 rack to support discrete I/O, timing, and basic control functions in compact automation installations.
