DPS-300A B-81 B Industrial PLC Power Supply: Comprehensive Technical Guide
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The 16 March 2026 delivery entry records one DPS-300A B-81 B power supply, revision 02, as new with a one-year warranty. Six photographs show a slim metal enclosure, attached harness and Delta nameplate. The readable model is DPS-300AB-81 B. Its labelled outputs are +12V and −53V, so the retained PLC-oriented article title does not establish compatibility with a particular controller.
Identification and delivery details
The Delta Electronics nameplate specifies AC input 100–240V, 5.5A, 50–60Hz and maximum continuous output of 300W. It lists +12V at 12.5A and −53V at 2.83A. The minus sign on the 53V rail matters: it must not be changed to +53V or confused with a 24V automation supply. The 300W statement is an overall continuous rating, not a rating independently available from each rail.
The case has ventilation slots, a small end fan, an IEC mains inlet and an I/O rocker switch. White multi-position plugs are visible through protective bags on the attached harness. Clear wrapping covers much of the enclosure. These views document the supplied hardware, but contain no powered output measurement, load test or host installation. PRODUCT OF CHINA appears on the label; that statement does not independently establish the sourcing chain.
| Item | Evidence |
|---|---|
| Identity | Delta Electronics; DPS-300AB-81 B; REV 02 |
| Additional label reference | HIK P/N 101701854; match the host requirement independently |
| AC input | 100–240V AC, 5.5A, 50–60Hz, as labelled |
| Continuous power | Maximum continuous 300W, as labelled |
| Positive output rail | +12V, 12.5A |
| Negative output rail | −53V, 2.83A; retain the negative polarity |
| Visible hardware | Metal case, ventilation, end fan, mains inlet, rocker switch and attached harness |
| Quantity and condition | One unit; new in the 16 March 2026 entry |
| Warranty | One year in the entry; confirm written terms for current supply |
| Origin and weight | PRODUCT OF CHINA on label; 1 kg record weight, no weighing shown |
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Electrical values and revision follow the readable Delta nameplate. The delivery entry supplies quantity, condition, warranty and weight. A PLC application claim in the earlier text is not evidence of host or connector compatibility.
Matching this part
Send the full Delta model, revision and host part reference, together with connector photos and the required rail polarity. Confirm the harness pinout against the host documentation before energizing.
Check mounting dimensions, airflow and load requirements. Request output measurements and a load test for the intended application; the supplied media do not demonstrate electrical operation.
Photos and recorded media
Recorded inspection clip. The clip is retained as delivery evidence; no performance measurement is inferred from it.
Related records and products
The CP1W-MAD44 delivery record concerns an Omron expansion module, not a demonstrated load for this supply. Confirm the exact host electrical requirements separately.
Request this part
Send DPS-300AB-81 B, revision and host part reference, required quantity and connector photos. Ask for output/load evidence and written condition and warranty terms.
Need a quote for this part?
Send us the part number or article link — we will confirm price, availability and lead time.
