Overview
Manuals
Backplane Capacity
AC Input Wiring
Replacement Checks
Features:
- Wide AC input ranges support documented 120 V and 240 V branch circuits.
- Provides up to 10.0 A at 5 V DC and 2.88 A at 24 V DC to the SLC backplane.
- Includes a 24 V DC, 1 A user supply for compatible external circuitry.
The 1746-P4 supplies regulated power to the processor and I/O modules installed in a compatible SLC 500 chassis. It accepts either the documented 120 V or 240 V AC input range and delivers up to 10.0 A at 5 V DC and 2.88 A at 24 V DC through the backplane, with a separate 24 V DC, 1 A user-power output available for supported field use.
Because every installed SLC module draws from one or both backplane rails, the supply is selected by a chassis-level power calculation rather than by physical fit alone. The input-voltage selection, branch protection, protective earth, typical line-power demand, maximum inrush current and total 5 V and 24 V loads must be checked before the supply is placed in service.
The 1746-P4 Allen-Bradley SLC 500 Chassis Power Supply may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen-Bradley 1746-P4 documentation and reference links.
Important Notice: The linked PDF is an official manufacturer document for this model or its documented exact product family. Confirm the complete order code, revision, connected hardware and installation requirements before replacement. Accessories, software and certificates are included only when stated in the written quotation.
Calculate the total 5 V and 24 V current required by every installed SLC module before approving the supply.
Confirm the 120 or 240 V branch circuit, terminal arrangement, protective earth, disconnect and overcurrent protection.
Match the complete catalog and series, inspect the chassis connector and verify both backplane rails after installation.
