CV/CC priority
Selectable control-loop priority supports controlled transient behaviour with high-impedance, low-impedance or capacitive devices under test.
N39400 – Programmable Multi-Channel DC Power Supply with 4 Isolated Channels
For space-efficient test setups in laboratories, system integration and production.
Six model variants combine 60 V or 150 V output classes with 200 W, 360 W or 600 W per channel in a uniform 19-inch 2U platform. Different voltage and current requirements can therefore be covered using the same operating and automation concept.
Programmable sequences
Up to ten sequence files provide timed profiles with programmable voltage, current, dwell time and rise time.
Remote sense
Four-wire sensing measures the voltage directly at the DUT and compensates for lead losses of up to 2 V.
Dual LAN and RS232
Two Ethernet ports and a serial interface support remote operation, multi-unit networking and automated test systems.
Personal project consultation
Do you need support selecting the right power supply? Our technical specialists will provide personal advice tailored to your application.
Select the appropriate technical configuration or access product documentation directly.
ART. NO.
Description
Current [A]
Power [P]
Voltage [V]
N39420-60-10
|
Description
N39420-60-10 Multi-channel DC source, 4 × 200 W, 60 V/10 A per channel, 2U, 4 isolated channels
|
Current [A]
10
|
Power [P]
200
|
Voltage [V]
60
|
4 Channel DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
Multi-channel
N39420-150-04
|
Description
N39420-150-04 Multi-channel DC source, 4 × 200 W, 150 V/4 A per channel, 2U, 4 isolated channels
|
Current [A]
4
|
Power [P]
200
|
Voltage [V]
150
|
4 Channel DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
Multi-channel
N39436-60-15
|
Description
N39436-60-15 Multi-channel DC source, 4 × 360 W, 60 V/15 A per channel, 2U, 4 isolated channels
|
Current [A]
15
|
Power [P]
360
|
Voltage [V]
60
|
4 Channel DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
Multi-channel
N39436-150-06
|
Description
N39436-150-06 Multi-channel DC source, 4 × 360 W, 150 V/6 A per channel, 2U, 4 isolated channels
|
Current [A]
6
|
Power [P]
360
|
Voltage [V]
150
|
4 Channel DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
Multi-channel
N39460-60-15
|
Description
N39460-60-15 Multi-channel DC source, 4 × 600 W, 60 V/15 A per channel, 2U, 4 isolated channels
|
Current [A]
15
|
Power [P]
600
|
Voltage [V]
60
|
4 Channel DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
Multi-channel
N39460-150-06
|
Description
N39460-150-06 Multi-channel DC source, 4 × 600 W, 150 V/6 A per channel, 2U, 4 isolated channels
|
Current [A]
6
|
Power [P]
600
|
Voltage [V]
150
|
4 Channel DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
Multi-channel
N39400 series overview
The N39400 series is a programmable multi-channel DC power supply for parallel powering, testing and charging tasks. Each unit provides four electrically isolated and individually adjustable channels. Depending on the model, each channel offers 60 V or 150 V, currents from 4 A to 15 A and a rated output of 200 W, 360 W or 600 W. All versions use a 19-inch 2U enclosure with a depth of 560 mm. Voltage and current can be configured directly through the 4.3-inch display or remotely from a connected computer. Sequence programming, a dedicated charge mode, combined channel control and software-based data logging support automated workflows. Typical applications include laboratory testing, system integration, production lines, ageing tests and multi-station test systems.
Key benefits
Four test stations in one unit
Four isolated outputs allow several DUTs to be powered simultaneously, reducing the number of instruments required in multi-station systems.
Compact 19-inch design
All four channels are integrated into a 2U enclosure for space-efficient installation in laboratory and ATE racks.
Two voltage classes
Models with 60 V or 150 V and graduated current and power ratings simplify application-specific instrument selection.
Fine programming resolution
The 60 V models provide 1 mV voltage resolution, while all variants programme output current with 1 mA resolution.
Repeatable test profiles
Programmable sequences automate voltage and current profiles using defined dwell times, repetitions and transition times.
Local and remote operation
The colour display supports local control, while LAN, RS232 and PC software enable integration into automated systems.
Operating principle of the programmable DC power supply
Each output channel operates as a regulated DC source. During normal operation, the supply maintains the programmed output voltage. When the load current reaches the configured limit, the relevant channel automatically changes from constant-voltage operation to constant-current operation.
Voltage priority
The voltage control loop is prioritised for high-impedance loads and sensitive processor or FPGA rails requiring low voltage overshoot.
Current priority
The current control loop is prioritised for low-impedance or highly capacitive DUTs and controlled charging processes.
With longer load cables, the voltage can be measured directly at the DUT through the rear-panel SENSE terminals. The supply compensates for a cable-related voltage drop of up to 2 V.
Technical classification: The N39400 series operates as a DC source without bidirectional sinking or regenerative energy recovery.
Models and technical specifications
All variants provide four channels. The voltage, current and power ratings listed below apply to each individual channel.
| Model | Voltage per channel | Current per channel | Power per channel | Channels | Voltage resolution |
|---|---|---|---|---|---|
| N39420-60-10 | 0 to 60 V | 0 to 10 A | 200 W | 4 | 1 mV |
| N39436-60-15 | 0 to 60 V | 0 to 15 A | 360 W | 4 | 1 mV |
| N39460-60-15 | 0 to 60 V | 0 to 15 A | 600 W | 4 | 1 mV |
| N39420-150-04 | 0 to 150 V | 0 to 4 A | 200 W | 4 | 10 mV |
| N39436-150-06 | 0 to 150 V | 0 to 6 A | 360 W | 4 | 10 mV |
| N39460-150-06 | 0 to 150 V | 0 to 6 A | 600 W | 4 | 10 mV |
Current resolution is 1 mA for all models. The specified programming and readback accuracy is 0.05% + 0.1% F.S. in CV operation and 0.1% + 0.1% F.S. in CC operation at 23 ±5 °C.
Dynamic and regulation performance
The technical values describe regulation during start-up, load changes and steady-state operation. Rise and fall time must be distinguished from an adjustable slew rate: the N39400 provides defined transition times for the output voltage.
| Characteristic | 60 V models | 150 V models | Practical relevance |
|---|---|---|---|
| Voltage line regulation | ≤ 0.015% | ≤ 0.015% | Low output variation when the AC input conditions change. |
| Current line regulation | ≤ 0.05% | ≤ 0.05% | Stable current limiting under changing input conditions. |
| Voltage load regulation | ≤ 0.03% | ≤ 0.03% | Stable output voltage during changes in load current. |
| Current load regulation | ≤ 0.05% | ≤ 0.05% | Stable current control during constant-current operation. |
| Voltage rise time | ≤ 30 ms at no load, ≤ 50 ms at full load | ≤ 30 ms at no load, ≤ 50 ms at full load | Defines the time required to reach the programmed operating point. |
| Voltage fall time | ≤ 50 ms at no load, ≤ 30 ms at full load | ≤ 50 ms at no load, ≤ 30 ms at full load | Describes the transition to a lower output level. |
| Peak-to-peak ripple | ≤ 250 mV | ≤ 300 mV | Assessment of superimposed AC components from 20 Hz to 20 MHz. |
| RMS ripple | ≤ 20 mV | ≤ 25 mV | RMS value of the broadband output noise. |
Operating modes and programmable functions
Voltage and current operation
Output voltage, current limit and CV/CC priority are configured separately for each channel, with individual output control.
Combined channel control
The All CH view displays voltage, current, power and status for all four channels and supports simultaneous output switching.
Sequence operation
Up to ten files and a total of up to 200 steps store voltage, current, dwell and rise-time parameters, cycles and file links.
Charge mode
Voltage, current and charging time are configured in advance, with automatic output shutdown based on voltage, current or charged capacity.
The charge-mode capacity cut-off can be configured from 0 to 1,080 Ah. A value of 0 disables the relevant termination criterion.
Typical applications
The four independently usable outputs are particularly suitable for applications in which several DUTs, assemblies or supply rails must be operated and monitored simultaneously.
Research and laboratory testing
Electronic assemblies are powered and characterised through separate channels using repeatable voltage and current settings.
Automated test equipment
LAN, RS232 and software control enable several power-supply channels to be integrated into ATE and system-test solutions.
Test solutions for production and end-of-line testing
Multiple products or assemblies can be powered in parallel, while sequences and data logging support repeatable production tests.
Ageing and endurance testing
Time-controlled output profiles power several DUTs during defined stress, ageing and endurance cycles.
Processor and FPGA power rails
CV priority supports a controlled voltage ramp with low overshoot for sensitive low-voltage supply rails.
Battery and capacitor charging
CC priority and charge mode enable controlled DC charging with adjustable termination criteria for batteries and supercapacitors.
Interfaces, software and automation
| Function | Status | Technical implementation | Application |
|---|---|---|---|
| Dual LAN | Standard | Two RJ45 ports, UDP communication, communication port 7000 | PC remote control, multi-unit networking and Ethernet daisy-chaining. |
| RS232 | Standard | Baud rates of 9,600, 19,200, 38,400 and 115,200 bit/s | Serial device communication and integration into existing test systems. |
| PC software | Included | For Microsoft Windows 7 or later | Device configuration, channel control, sequence editing, protection settings and data logging. |
| Data logging | Software function | Storage and historical analysis of voltage, current and power | Documentation of test processes and subsequent analysis of recorded curves. |
| LabVIEW driver | Specified as included | Driver package for system integration | Integration into customer-specific automation and test software. |
| Remote sense | Standard function | Four-wire sensing with up to 2 V compensation | Compensation for voltage drop across long or high-current load cables. |
| GPIB | Optional | Via the NE101 RS232-to-GPIB communication converter | Connection to existing GPIB-based laboratory and test systems. |
Installation and infrastructure
| Characteristic | Requirement or value | Information |
|---|---|---|
| AC input | Single-phase, 220 VAC ±10% | The unit must be connected to a reliable protective-earth conductor. |
| Input frequency | 47 to 63 Hz | Compatibility with the rear-panel rating must be verified before connection. |
| Form factor | 19-inch, 2U | An optional rack-mount kit is available. |
| Dimensions | 482 × 88 × 560 mm including front handles | Width × height × depth. |
| Weight | Approx. 10 kg | The specified unit weight is approximately 9.5 kg. |
| Operating temperature | 0 to 40 °C | Ventilation openings must not be obstructed. |
| Relative humidity | 5 to 90% RH | Non-condensing. |
| Operating altitude | Below 2,000 m | Applies to specified operation. |
| Cooling | Air cooling | Adequate air intake and unrestricted exhaust paths must be provided. |
At high ambient temperature and operation close to rated power, the cooling fan may run at maximum speed. The sound level measured at a distance of 1 m may exceed 70 dB.
Protection and safety functions
Overvoltage protection
If the output voltage exceeds the configured threshold, the relevant output is switched off to protect the DUT.
Overcurrent protection
Exceeding the programmed current threshold triggers a protective shutdown of the channel.
Overpower protection
The output is switched off when the delivered power exceeds the configured protection value.
Overtemperature protection
The device automatically disables its output if the internal temperature exceeds the defined limit.
Short-circuit protection
Current limiting and the integrated protection functions support safe operation under low-impedance load conditions.
Delay times can be configured for OVP, OCP and OPP. Triggered protection messages are shown on the display and can be cleared with the PROT-CLR function after the cause has been removed.
N39400 series FAQ
How do I select the correct N39400 model?
Selection is based on the required voltage, maximum current and power per channel. The series offers 60 V and 150 V variants with 200 W, 360 W or 600 W per channel.
Are the four channels isolated from each other?
Yes. The unit provides four isolated output channels that can be configured and operated separately.
Can all channels be operated simultaneously?
Yes. The All CH view displays all four channels and supports common voltage and current settings as well as simultaneous output switching.
How many sequence steps can be stored?
The unit supports up to ten sequence files. The device-side total capacity is up to 200 programmable steps.
How much cable voltage drop can remote sense compensate?
The remote-sense function compensates for a maximum voltage drop of 2 V between the output terminals and the DUT.
Which interfaces are included as standard?
Two LAN ports and one RS232 interface are provided as standard. GPIB can be added through the optional NE101 converter.
Can the N39400 series sink or regenerate energy?
No. The series operates as a programmable DC source without sinking or regenerative operation.
Which AC supply is required?
The units require a single-phase 220 VAC ±10% supply at 47 to 63 Hz and a reliable protective-earth connection.
Technical consultation and project enquiries
Are you planning to power several DUTs in parallel, or do you need support selecting the appropriate voltage, current and power class? ET System supports instrument selection and integration into laboratory, ATE and production systems.
- Selection of the appropriate 60 V or 150 V model
- Assessment of channel allocation, power requirements and remote-sense connections
- Integration through LAN, RS232, PC software or LabVIEW
