Allen-Bradley 1746-P3 SLC 500 Power Supply 24VDC 3.6A

The Allen-Bradley 1746-P3 SLC 500 power supply is a rack‑mount DC power source for the SLC 500 backplane, providing the dual rails needed by logic and I/O within a single chassis. It accepts a DC input in the range of 19.2 to 28.8 V (nominally 24 V) and delivers a 5 VDC rail rated up to 3.6 A along with a 24 VDC rail rated up to 0.87 A, enabling reliable operation of the controller and connected modules. This DC‑input design is part of the 1746-P1 through -P4 family, with the P3 model specifically identified as the 24 VDC input variant for SLC 500 systems. The compact, rack‑mount form factor is intended for standard SLC 500 enclosures, making the 1746‑P3 a common replacement or spare for legacy automation panels, retrofits, and service‑level maintenance where a stable 5 V and 24 V supply are required to support the processor and field devices.