Allen-Bradley · SLC 500 Series 1746-P1 SLC 500 Rack Mounting Power Supply Product Family SLC 500 Input 85–132 / 170–265V AC 5V DC Capacity 2 A Lifecycle Discontinued 2020 Request a Quote ↗ Allen-Bradley 1746-P1 is a rack-mounted power supply for the SLC 500 modular controller platform. It provides the DC power required by the chassis backplane and includes an isolated 24V DC user-power output for compatible field loads. For maintenance teams supporting installed SLC 500