Delta DPS-575AB Power Supply: Comprehensive Guide for Industrial PLC Automation

February 4, 2026

Historical parts record: Photos and notes below belong to this record. Confirm the offered unit’s full model, condition and available test evidence before ordering.

What this delivery is: one Delta DPS-575AB switching power supply — the 575-watt unit built for HP workstations under HP part number 403849-001, spare number 412848-00, revision 01F — second-hand at 95 percent, three-month warranty, 2.5 kg, received 2026-02-03. The nameplate carries the full electrical story in the dense style Delta prints for HP: input 100-127 V at 10 A, 200-240 V at 6 A, 50-60 Hz, plus a 118 V 10 A 400 Hz line — the aviation-frequency input row HP specified — and an output table split across dedicated +12 V rails: 18 A on the main rail, 17 A on CPU0, 10 A on CPU1, 12 A on the device rail, with the combined print reading MAX COMBINED TOTAL OUTPUT 575 W. Serial AVCDD7Z2041BB9, Made in China, cULus listed.

What the ratings mean

This is the split-rail design HP used across its workstation line: rather than one fat 12-volt rail, the DPS-575AB keeps the two processor feeds (CPU0 and CPU1) on their own regulated outputs, with a third 12 V device rail for drives and cards. The nameplate's combined figures are the real sizing guide — 575 watts total, with the 3.3-and-5-volt pair capped at 100 watts between them — and the 400 Hz input line exists because these same supplies had to run in mobile and airborne-configured HP cabinets. Physically it is an ATX-format tower supply: 24-pin motherboard plug, the usual peripheral and SATA branches on the loom (all present and tied in our photos), a standard C14 inlet, and a yellow-hubbed cooling fan behind the honeycomb rear grille. For an HP xw-series workstation, this is the drop-in replacement; for a generic build it behaves as a 575 W multi-rail ATX supply with unusually well-documented rails.

Item	Value on the nameplate / record
Product	Delta DPS-575AB A switching power supply, HP workstation unit
HP part numbers	HP P/N 403849-001; SPARE P/N 412848-00; revision 01F per the record
Input	100-127 V 10 A / 200-240 V 6 A, 50-60 Hz; 118 V 10 A 400 Hz line
Outputs	+12 V 18 A; +12 V CPU0 17 A; +12 V CPU1 10 A; +12 V D 12 A; +5 V 2.5 A; +3.3 V 18 A
Combined limits	+12 V total 575 W; +3.3 V & +5 V 100 W; max combined total output 575 W (nameplate print)
Identity	SN AVCDD7Z2041BB9; CT: 5T6B960C4DUN014; cULus; Made in China
Condition	Second-hand, 95 percent, 3-month warranty; complete loom
Weight / received	2.5 kg; received 2026-02-03

In service

The DPS-575AB's most common role today is rescue: an HP workstation that won't power on, cycles, or shuts under load is usually one dead rail away from this part, and the fix is a ten-minute swap — four screws, the 24-pin and the peripheral leads, done. The dual-CPU rail structure is worth respecting in diagnosis: a machine that beeps about a processor but has healthy processors is often showing a CPU0 or CPU1 rail that has sagged, which a generic replacement supply without that rail structure cannot fix. Outside the HP world, the supply suits any ATX build that wants real rail separation and a documented 575-watt budget, and the 400 Hz input line makes it a candidate for the odd generator-fed cabinet where mainstream consumer supplies never spend time. The unit here came out of service at 95 percent — shell unworn, loom complete, fan and grille clean — which is what a ten-minute-test-and-fit part should look like.