Description
Check the wall socket before you check the data sheet. The Keysight N8940A DC power supply runs from 400 VAC, three phase, and it is an N8900 Series autoranging system rated 80 V, 170 A and 5000 W. Lost in HCM lists it for rental and sale, and it arranges repair intake on request.
Match the supply to your site
The listing shows a 400 VAC three-phase input. Also, the factory-installed AC-input option has to match your installation. So ask Lost in HCM for a photo of the unit label and the exact option list before you decide. However, a site with a different feed will need a different configuration, and that is better to learn early.
What 5000 W allows at 80 V
Voltage and current are separate limits, and rated power sits above both. Divide 5000 W by your chosen voltage, and you get the current you can draw.
- About 62.5 A at 80 V.
- Roughly 125 A at 40 V.
- The full 170 A at about 29 V or lower.
So a 170 A load must stay at low voltage, and an 80 V load must stay near 62 A. Verify the whole envelope in the Keysight data sheet.
Specification list
| Item | Listed value |
|---|---|
| Instrument type | N8900 Series autoranging system DC power supply |
| Maximum output voltage | 80 V |
| Maximum output current | 170 A |
| Maximum output power | 5000 W |
| AC input | 400 VAC, three phase |
| Interfaces | LAN, USB, GPIB and analog |
Fitting it into an automotive or industrial test
First, review the supply against the test method you must follow. For example, an ECU, a lighting module or a motor-control board each has its own startup and load pattern. This is a DC source, so it does not replace a regenerative supply, a bidirectional battery emulator or a specialist transient generator. Confirm inrush, shutdown and energy flow before you connect anything.
Using the Keysight N8940A DC power supply for short projects
Rental can cover a validation campaign, a field project, a training event or a temporary jump in capacity. A demonstration for a customer also fits that list. When you ask for a quote, give the duty cycle, the site and the accessories you expect. Because the listing does not promise cables or fixtures, itemize them one by one.
The picture on the listing
The photo of the Keysight N8940A DC power supply shows a family panel. A blue display reads 80.00V and 0.00A, two knobs sit under it, and a black rotary switch sits on the left. Its label shows a different model number, so rely on the quotation for the exact unit.
Next step with Lost in HCM
SMK Vietnam only shows this listing. For the Keysight N8940A DC power supply, request a quote from Lost in HCM and state your project dates, delivery city and condition preference. Related units are in the power supplies category, Keysight hosts the official documents, and SMK Vietnam can answer site questions.
N8940A questions
Which AC feed does it list?
It lists 400 VAC, three phase. Confirm the factory option against your site.
How much current is available at 80 V?
About 62.5 A. At 80 V the 5000 W rating sets the ceiling, not the 170 A limit.
Can it return power to the grid?
The listing does not say so. Treat it as a plain DC source and ask Lost in HCM for the options.
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