Description
At 510 A, cables, lugs and bus bars become part of the instrument. The Keysight N8951A DC power supply pairs an 80 V ceiling with 510 A and 15000 W of rated power. Lost in HCM lists it for rental and sale, so you can rent it for a project or buy it.
Why current is the headline here
This model trades voltage for current. Voltage tops out at 80 V, while current reaches 510 A. However, rated power still caps the product of the two. At 80 V, 15000 W allows 187.5 A, and at 40 V it allows 375 A. Because of that, the full 510 A is available only at about 29 V or lower.
As a result, list the real voltage and current pairs of your test before you book. Then check them against the Keysight data sheet.
Heavy leads and clean joints on the Keysight N8951A DC power supply
High-current connections need an engineering review of conductor rating and connection resistance. A poor joint wastes power as heat and distorts the voltage at the device. So size the conductors for the load, and inspect each joint before every run. Choose the overvoltage and current limits from the needs of the device under test, then check polarity before you enable the output.
Remote sensing, parallel use and series use depend on the configuration, so follow the manufacturer’s instructions for each.
Jobs for a Keysight N8951A DC power supply
- Feeding low-voltage, high-current assemblies, such as DC-fed modules during development.
- Controlled load testing, for example on DC-powered hardware.
- Repeated power-on checks and endurance runs on a factory station.
It is a DC source, though, so do not assume it replaces a bidirectional battery emulator or a regenerative supply.
Site and control
The listed input is 400 VAC, three phase, and the factory-installed AC-input option has to match your site. Request a label photo and the option list. Also, control runs over LAN, USB, GPIB or analog. Check cooling, rack space and grounding with your facility team, because a 15 kW unit needs all three.
Rent, buy or request repair
A rental fits a validation campaign, a demonstration or a temporary capacity increase. In contrast, buying makes sense for a lab that uses the supply every week. For a repair case, share the serial number, the symptoms and photos. In short, Lost in HCM supplies the unit, while SMK Vietnam only hosts the listing.
To begin, request a quote from Lost in HCM with your dates, delivery city and test points. Look through power supplies for similar models. The Keysight website lists official data, and you can contact SMK Vietnam for help.
N8951A questions
Which current can I count on at 40 V?
About 375 A, because 15 kW at 40 V works out to that figure. It sits below the 510 A limit.
Do the 80 V and 510 A maximums apply together?
No. Rated power limits the output, so the two maximums never apply at once.
Does the quote cover cables and bus bars?
Only the items it lists. Ask Lost in HCM to itemize every cable, adapter and license.
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