Keysight N8900 Series
Autoranging System DC Power Supplies
N8920A-N8924A (5 kW, 208 VAC)
N8925A-N8930A (10 kW, 208 VAC)
N8931A-N8937A (15 kW, 208 VAC)
N8940A-N8944A (5 kW, 400 VAC)
N8945A-N8950A (10 kW, 400 VAC)
N8951A-N8957A (15 kW, 400 VAC) Data Sheet
02 | Keysight | N8900 Series Autoranging System DC Power Supplies - Data Sheet
The Keysight Technologies N8900 Series provides 5, 10, and 15 kW autoranging,
single-output programmable DC power for ATE applications that require just the right
amount of performance at just the right price. The N8900 Series power supplies’ auto-
of voltage and current combinations at full power. Power supplies with “rectangular,”
or traditional, output characteristics provide full power at only one voltage and current
combination. Just one N8900 does the job of multiple power supplies. It’s like having
many power supplies in one!
The N8900 Series provides stable output power, built-in voltage and current measure-
ments, and autoranging output voltage and current from 80 to 1500 V and 20 to 510 A.
These supplies offer many system-ready features like multiple standard I/O interfaces to
simplify and accelerate test-system development and compact 3U design to save rack
space. If more power is required, easily parallel multiple N8900 units to create “one”
power supply with > 100 kW of total output power. The built-in master/slave control en-
ables programming as if it’s just one big power supply; no need to program each supply
individually.
Autoranging output – does the job of multiple power supplies
The N8900 power supplies’ autoranging output characteristic makes it much more
the 1000 V, 30 A, 10 kW model is capable of 1000 V and 10 A at 10 kW as well as 333.3 V
A, 10 kW. At 333.3 V it would only be able to output 3.3 kW, not the 10 kW of an auto-
–Autoranging output – does the job of
multiple power supplies!
–5, 10, and 15 kW maximum output
power
–Up to 1500 V and up to 510 A
–14 different voltage, current, and
power combinations available in 208 or
400 VAC (28 total models)
–Just the right amount of performance at
just the right price
–Easily parallel units to create “one”
power supply with > 100 kW of power
–Built-in voltage and current measure-
ment
–High power density, 15 kW in only 3U
(5.25 inch/13.34 cm)
–Protection from over-voltage, over-
current, and over-temperature
–LAN (LXI Core), USB, GPIB, and analog
interfaces all standard
Family of Affordable, Autoranging System DC Power Supplies
Autoranging output – like having many power
supplies in one!
Figure 1. Autoranging output characteristic
Figure 2. Rectangular output characteristic
Voltage
Current
1000 V
10 A 30 A
333.3 V
10 kW
power curve
Rectangular (traditional) output characteristic
Voltage
Current
1000 V
10 A
333.3 V
10 kW
3.3 kW
03 | Keysight | N8900 Series Autoranging System DC Power Supplies - Data Sheet
Easy front-panel operation
Using the front panel controls, you have complete access to all of the N8900 features via
other features. The output voltage, current, and power can be displayed simultaneously,
and annunciators at the bottom of the display show power supply status and operating
parameter changes.
Device protection
To safeguard your device, the N8900 Series power supplies provide over-temperature,
over-current and over-voltage protection to shut down the power supply output when a
fault condition occurs.
Simplify system connections
The N8900 Series power supplies comes standard with GPIB, Ethernet/LAN, USB 2.0,
and safeguard your test setup for the future. There is no need to worry whether or not
you are choosing the right interface when they all come standard. The N8900 is fully
Remote access and control
The built-in Web server provides remote access and control of the instrument via a stan-
ability to monitor and control the instrument from anywhere. Using the Web browser, you
can set up, monitor and operate the N8900 remotely.
To simplify system development, the N8900 comes standard with IVI-COM drivers. The
N8900 supports the easy-to-use SCPI (Standard Commands for Programmable Instru-
ments).
Parallel operation for more power
Need more power, we’ve got you covered. Quickly create a master/slave setup for even
-
ily connect in parallel up to ten identical units (same model number) for greater output
4, page 4.) Series operation is not recommended.
Figure 3. N8900 Series web graphical user interface for remote access and control of the power supply
04 | Keysight | N8900 Series Autoranging System DC Power Supplies - Data Sheet
Analog programming and monitoring
The output voltage and current can be programmed from zero to full-scale by an analog
voltage signal from 0 to 5 V or 0 to 10 V. Each corresponding to 0 to 100% of full-scale.
The measured output voltage and current can also be monitored in the same way.
AC input
The N8900 has 28 total models. Fourteen have 208 VAC inputs and the remaining 14
have 400 VAC inputs. This gives the N8900 the ability to be used anywhere in the world.
Choose 208 VAC for regions such as the Americas and Japan or choose 400 VAC for
regions such as Europe and Asia.
1. 20 Hz to 20 MHz
2. 20 Hz to 300 kHz
Figure 4. Parallel operation for more power (cables not included)
All specifications pertain to >2% of rated voltage and >1% of rated current
N8920A /
N8940A
N8921A /
N8941A
N8923A /
N8943A
N8924A /
N8944A
N8925A /
N8945A
N8926A /
N8946A
N8928A /
N8948A
N8929A /
N8949A
N8930A /
N8950A
N8931A /
N8951A
N8932A /
N8952A
N8934A /
N8954A
N8935A /
N8955A
N8937A /
N8957A
DC output ratings
Voltage 80 V 200 V 500 V 750 V 80 V 200 V 500 V 750 V 1000 V 80 V 200 V 500 V 750 V 1500 V
Current 170 A 70 A 30 A 20A 340 A 140 A 60 A 40 A 30 A 510 A 210 A 90 A 60 A 30 A
Power 5 kW 5 kW 5 kW 5 kW 10 kW 10 kW 10 kW 10 kW 10 kW 15 kW 15 kW 15 kW 15 kW 15 kW
Output voltage ripple and noise
CV p-p1200 mV 375 mV /
300 mV
350 mV 800 mV 320 mV 375 mV /
300 mV
350 mV 800 mV 1600 mV 320 mV 375 mV /
300 mV
350 mV 800 mV 2400 mV
CV rms216 mV 40 mV 70 mV 200 mV 25 mV 40 mV 70 mV 200 mV 350 mV 25 mV 40 mV 70 mV 200 mV 400 mV
Load effect (change from 0% to 100% of full load)
Voltage 40 mV 100 mV 250 mV 375 mV 40 mV 100 mV 250 mV 375 mV 500 mV 40 mV 100 mV 250 mV 375 mV 750 mV
Current 255 mA 105 mA 45 mA 30 mA 510 mA 210 mA 90 mA 60 mA 53 mA /
45 mA
765 mA 315 mA 135 mA 90 mA 53 mA /
45 mA
Programming accuracy (23 °C ± 5 °C)
Voltage ≤ 80 mV ≤ 200 mV ≤ 500 mV ≤ 750 mV ≤ 80 mV ≤ 200 mV ≤ 500 mV ≤ 750 mV ≤ 1.0 V ≤ 80 mV ≤ 200 mV ≤ 500 mV ≤ 750 mV ≤ 1.5 V
Current ≤ 340 mA ≤ 140 mA ≤ 60 mA ≤ 40 mA ≤ 680 mA ≤ 280 mA ≤ 120 mA ≤ 80 mA ≤ 60 mA ≤ 1.1 A ≤ 420 mA ≤ 180 mA ≤ 120 mA ≤ 60 mA
Measurement accuracy (23 °C ± 5 °C)
Voltage ≤ 80 mV ≤ 200 mV ≤ 500 mV ≤ 750 mV ≤ 80 mV ≤ 200 mV ≤ 500 mV ≤ 750 mV ≤ 1.0 V ≤ 80 mV ≤ 200 mV ≤ 500 mV ≤ 750 mV ≤ 1.5 V
Current ≤ 340 mA ≤ 140 mA ≤ 60 mA ≤ 40 mA ≤ 680 mA ≤ 280 mA ≤ 120 mA ≤ 80 mA ≤ 60 mA ≤ 1.1 A ≤ 420 mA ≤ 180 mA ≤ 120 mA ≤ 60 mA
Load transient recovery time (time for output voltage to recover within 1% of its rated output for a load change from 10% to 90% of its rated output current)
Time ≤ 1.5 ms
05 | Keysight | N8900 Series Autoranging System DC Power Supplies - Data Sheet
Supplemental characteristics (typical)
1.
N8920A /
N8940A
N8921A /
N8941A
N8923A /
N8943
N8924A /
N8944A
N8925A /
N8945A
N8926A /
N8946A
N8928A /
N8948A
N8929A /
N8949A
N8930A /
N8950A
N8931A /
N8951A
N8932A /
N8952A
N8934A /
N8954A
N8935A /
N8955A
N8937A /
N8957A
Output response time: Time from 10% to 90%, or 90% to 10%, of total voltage excursion
Up, full load1≤ 30 ms
Down, full load1≤ 80 ms
Down, no load ≤ 30 s ≤ 10 s ≤ 10 s ≤ 10 s ≤ 30 s ≤ 10 s ≤ 10 s ≤ 10 s ≤ 10 s ≤ 30 s ≤ 10 s ≤ 10 s ≤ 10 s ≤ 10 s
Command response time
< 25 ms
Remote sense compensation
Volts/load lead 2 V 5 V 10 V 18 V 2 V 5 V 10 V 18 V 22 V 2 V 5 V 10 V 18 V 30 V
Over-voltage protection
Range 0 - 88 V 0 - 220 V 0 - 550 V 0 - 825 V 0 - 88 V 0 - 220 V 0 - 550 V 0 - 825 V 0 - 1100 V 0 - 88 V 0 - 220 V 0 - 550 V 0 - 825 V 0 - 1650 V
Source effect (±10% of AC input rating)
Voltage 16 mV 40 mV 100 mV 150 mV 16 mV 40 mV 100 mV 150 mV 200 mV 16 mV 40 mV 100 mV 150 mV 300 mV
Current 85 mA 35 mA 15 mA 10 mA 170 mA 70 mA 30 mA 20 mA 15 mA 255 mA 105 mA 45 mA 30 mA 15 mA
Output current ripple and noise
CC rms 80 mA 22 mA 16 mA 16 mA 160 mA 44 mA 32 mA 32 mA 22 mA 240 mA 66 mA 48 mA 48 mA 26 mA
Programming resolution
Voltage 4 mV 9 mV 21 mV 31 mV 4 mV 9 mV 21 mV 31 mV 41 mV 4 mV 9 mV 21 mV 31 mV 61 mV
Current 7 mA 3 mA 2 mA 1 mA 14 mA 6 mA 3 mA 2 mA 2 mA 21 mA 9 mA 4 mA 3 mA 2 mA
Measurement resolution
Voltage 4 mV 9 mV 21 mV 31 mV 4 mV 9 mV 21 mV 31 mV 41 mV 4 mV 9 mV 21 mV 31 mV 61 mV
Current 7 mA 3 mA 2 mA 1 mA 14 mA 6 mA 3 mA 2 mA 2 mA 21 mA 9 mA 4 mA 3 mA 2 mA
Output terminal isolation
Positive
terminal +400 V +600 V +1000 V +1000 V +400 V +600 V +1000 V +1000 V +1000 V +400 V +600 V +1000 V +1000 V +1500 V
Negative
terminal ±400 V ±400 V ±725 V ±725 V ±400 V ±400 V ±725 V ±725 V ±725 V ±400 V ±400 V ±725 V ±725 V ±1000 V
Acoustic noise declaration
Idle fan speed 55 dBA / 48 dBA 55 dBA / 51 dBA 56 dBA / 52 dBA
Max fan speed 76 dBA / 57 dBA 77 dBA / 62 dBA 79 dBA / 73 dBA
208 VAC input (N8920A - N8937A)
Nominal input voltage 208 VAC
Input range Nominal ±10%
Frequency 45-65 Hz
Phase 3 phase
Input current 2 x 32 A 2 x 32 A, 1 x 56 A 3 x 56 A
Inrush current 41 A 97 A 97 A
Power factor > 0.99
Efficiency 87.5% 90% 91% 90% 87.5% 89.5% 91% 90% 91% 87.5% 89.5% 91% 90% 91%
400 VAC input (N8940A - N8957A)
Nominal input voltage 400 VAC
Input range Nominal ±10%
Frequency 45-65 Hz
Phase 3 phase
Input current 2 x 16 A 2 x 16 A, 1 x 28 A 3 x 28 A
Inrush current 28A 49A 49A
Power factor > 0.99
Efficiency 91.5% 91.5% 93.5% 90% 89.5% 91.5% 91% 90% 93.5% 89.5% 91.5% 93.5% 90% 93%
06 | Keysight | N8900 Series Autoranging System DC Power Supplies - Data Sheet
Supplemental characteristics (typical) - all models
Supplemental characteristics
Analog programming:
Input range Selectable: 0 to 5 V or 0 to 10 V
Accuracy Specified accuracy + 0.2% of rating
Input impedance 150 kΩ
Referenced to: Ground
Temperature coefficients: (after 30 minute warmup)
Voltage 50 PPM/°C of rated output voltage
Current 50 PPM/°C of rated output current
Series operation not recommended
Parallel operation
Master-slave Yes
Savable states
Nonvolatile memory 10
Interface capabilities
GPIB, USB 2.0, 10/100 LAN SCPI - 1993, IEEE 488.2 compliant interface;
Requires Keysight I/O Libraries 16.3 or later
LXI compliance LXI Core 2011 compliant
Environmental conditions
Environment Indoor use, installation category II (AC input), pollution degree 2
Operating temp 0 °C to 45 °C
Storage temp –20 °C to 70 °C
Operating humidity 80%
Storage humidity 80%
Altitude 2000 m
Built-in Web server Requires Internet Explorer 7+, Firefox, or Chrome.
Additionally requires Java plug-in and the Java Runtime Environment.
Regulatory compliance
EMC - Complies with European EMC Directive for test and measurement products
- Complies with Australian standard and carries C-Tick mark
- Complies with Canadian ICES-001
Safety - Complies with European Low Voltage Director and carries the CE-marking
- Complies with US and Canadian safety regulations
- Not applicable for IT mains supply systems
Declarations of Conformity for this product may be downloaded from the web. Go
to www.keysight.com/go/conformity and click on “Declarations of Conformity”.
07 | Keysight | N8900 Series Autoranging System DC Power Supplies - Data Sheet
Outline diagrams
DC Output Bus-Bar Detail
80 V and 200 V models ≥ 500 V models
483 mm
= airflow
133 mm
135 mm w/feet
40 mm 610 mm (400 VAC units)
660 mm (208 VAC units) 64 mm
449 mm
Ø
Ø
25.5 mm
10 mm
20 mm
40 mm
8 mm
9 mm
45.5 mm
6.5 mm
10 mm
20 mm
20 mm
10 mm
Product Weight
208 VAC models
5 kW models: 18.5 kg (40.6 lbs)
10 kW models: 26.8 kg (59 lbs)
15 kW models: 35.2 kg (77.4 lbs)
400 VAC models
5 kW models: 16.9 kg (37.2 lbs)
10 kW models: 24.3 kg (53.5 lbs)
15 kW models: 31.8 kg (70 lbs)
08 | Keysight | N8900 Series Autoranging System DC Power Supplies - Data Sheet
1.
and current combintations possible due to the autoranging capability.
Figure 5. N8924A autoranging system DC power supply
Available models
Model #
Max
voltage (V)
Current (A)
@ max voltage1
Voltage (V)
@ max current1
Max
current (A)
Max
power (W)
AC input voltage
(VAC)
N8920A 80 62.5 29.4 170 5000 208
N8921A 200 25.0 71.4 70 5000 208
N8923A 500 10.0 166.7 30 5000 208
N8924A 750 6.7 250.0 20 5000 208
N8925A 80 125.0 29.4 340 10000 208
N8926A 200 50.0 71.4 140 10000 208
N8928A 500 20.0 166.7 60 10000 208
N8929A 750 13.3 250.0 40 10000 208
N8930A 1000 10.0 333.3 30 10000 208
N8931A 80 187.5 29.4 510 15000 208
N8932A 200 75.0 71.4 210 15000 208
N8934A 500 30.0 166.7 90 15000 208
N8935A 750 20.0 250.0 60 15000 208
N8937A 1500 10.0 500.0 30 15000 208
N8940A 80 62.5 29.4 170 5000 400
N8941A 200 25.0 71.4 70 5000 400
N8943A 500 10.0 166.7 30 5000 400
N8944A 750 6.7 250.0 20 5000 400
N8945A 80 125.0 29.4 340 10000 400
N8946A 200 50.0 71.4 140 10000 400
N8948A 500 20.0 166.7 60 10000 400
N8949A 750 13.3 250.0 40 10000 400
N8950A 1000 10.0 333.3 30 10000 400
N8951A 80 187.5 29.4 510 15000 400
N8952A 200 75.0 71.4 210 15000 400
N8954A 500 30.0 166.7 90 15000 400
N8955A 750 20.0 250.0 60 15000 400
N8957A 1500 10.0 500.0 30 15000 400
09 | Keysight | N8900 Series Autoranging System DC Power Supplies - Data Sheet
Options
None
AC input voltages
If the AC input voltage where the power supply will be used is:
– 187 to 229, please choose a 208 VAC model (N8920A-N8937A)
– 360 to 440 VAC, please choose a 400 VAC model (N8940A-N8957A)
Accessories
N8958A Rack mount kit for Keysight racks
Use standard rack rails for non-Keysight racks.
Line cords and terminations (plugs)
Due to the number of different line cords and terminations around the world, the N8900
power supplies do not come with line cords or terminations. Users will need to supply
their own dependent on the local laws and codes of the country/region where the power
supply will be used.
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For more information on Keysight
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services, please contact your local Keysight
office. The complete list is available at:
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Americas
Canada (877) 894 4414
Brazil 55 11 3351 7010
001 800 254 2440
United States (800) 829 4444
Australia 1 800 629 485
China 800 810 0189
Hong Kong 800 938 693
India 1 800 112 929
Japan 0120 (421) 345
Korea 080 769 0800
Malaysia 1 800 888 848
Singapore 1 800 375 8100
Taiwan 0800 047 866
Other AP Countries (65) 6375 8100
Europe & Middle East
Austria 0800 001122
Belgium 0800 58580
Finland 0800 523252
France 0805 980333
Germany 0800 6270999
Ireland 1800 832700
Israel 1 809 343051
Italy 800 599100
+32 800 58580
Netherlands 0800 0233200
Russia 8800 5009286
Spain 0800 000154
Sweden 0200 882255
Switzerland 0800 805353
Opt. 1 (DE)
Opt. 2 (FR)
Opt. 3 (IT)
United Kingdom 0800 0260637
For other unlisted countries:
www.keysight.com/find/contactus
(BP-09-04-14)
10 | Keysight | N8900 Series Autoranging System DC Power Supplies - Data Sheet
This information is subject to change without notice.
© Keysight Technologies, 2013-2014
Published in USA, September 18, 2014
5991-2818EN
www.keysight.com
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For customers who must comply with the U.S. General Services Administration, the following
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These products can be seen on our website with a –GSA suffix.
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