Programmable sequences
Voltage, current and dwell time can be programmed in up to 10 files with 200 steps in total.
N39200 – Programmable Dual-Channel DC Power Supply up to 600 W per Channel
For compact laboratory, ATE and production test stations requiring two independently controlled DC operating points.
The compact 2U half-rack enclosure combines two isolated channels in one instrument, reducing equipment count and rack space. A shared touchscreen displays both channel readings simultaneously, making it easier to supervise two independent devices under test.
CV/CC priority
The preferred control loop can be selected to reduce voltage or current overshoot for the connected load.
Remote control
Two LAN ports and an RS232 interface support PC integration and central control of multiple instruments.
Internal power expansion
In the documented Cascade Mode, CH1 and CH2 operate in parallel, doubling available output current and power.
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]
N39220-60-10
|
Description
N39220-60-10 Dual-channel DC source, 2 × 200 W, 60 V/10 A per channel, 2U, channels parallel-connectable
|
Current [A]
10
|
Power [P]
200
|
Voltage [V]
60
|
2 Channel DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
Multi-channel
N39220-150-04
|
Description
N39220-150-04 Dual-channel DC source, 2 × 200 W, 150 V/4 A per channel, 2U, channels parallel-connectable
|
Current [A]
4
|
Power [P]
200
|
Voltage [V]
150
|
2 Channel DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
Multi-channel
N39240-60-20
|
Description
N39240-60-20 Dual-channel DC source, 2 × 400 W, 60 V/20 A per channel, 2U, channels parallel-connectable
|
Current [A]
20
|
Power [P]
400
|
Voltage [V]
60
|
2 Channel DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
Multi-channel
N39240-150-08
|
Description
N39240-150-08 Dual-channel DC source, 2 × 400 W, 150 V/8 A per channel, 2U, channels parallel-connectable
|
Current [A]
8
|
Power [P]
400
|
Voltage [V]
150
|
2 Channel DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
Multi-channel
N39260-60-20
|
Description
N39260-60-20 Dual-channel DC source, 2 × 600 W, 60 V/20 A per channel, 2U, channels parallel-connectable
|
Current [A]
20
|
Power [P]
600
|
Voltage [V]
60
|
2 Channel DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
Multi-channel
N39260-150-08
|
Description
N39260-150-08 Dual-channel DC source, 2 × 600 W, 150 V/8 A per channel, 2U, channels parallel-connectable
|
Current [A]
8
|
Power [P]
600
|
Voltage [V]
150
|
2 Channel DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
Multi-channel
N39200 series overview
The N39200 is a programmable dual-channel DC power supply for laboratory testing, automated test equipment, system integration and production test stations. Six models provide either 60 V or 150 V per channel with power ratings of 200 W, 400 W or 600 W. Depending on the selected model, each channel supplies between 4 A and 20 A.
Both outputs are isolated from each other and can be configured, enabled and monitored independently. Readings from both channels are shown simultaneously on the 4.3-inch touchscreen. The 2U half-rack enclosure requires limited bench or rack space. In addition to standard CV and CC operation, the series supports programmable sequences, selectable control-loop priority, four-wire sensing and remote operation via LAN or RS232.
Key benefits
Two independent outputs
Voltage, current, protection limits and output status are configured separately for each channel, allowing two devices under test to operate at different setpoints.
Compact instrument architecture
Dimensions of 88 × 214 × 546 mm combine two channels within a space-saving 2U half-rack enclosure.
Fine programming resolution
The 60 V models provide 1 mV voltage resolution, while the 150 V models provide 10 mV. Current resolution is 1 mA across the series.
Compensated load voltage
Remote Sense measures voltage directly at the device under test and compensates for voltage drops along the power leads.
Repeatable test profiles
Multi-step voltage and current profiles can be stored, repeated and reproduced for recurring validation and production tests.
Local and central operation
The touchscreen, function keys, rotary control and PC software support both manual laboratory work and automated test sequences.
Operating principle of the programmable DC power supply
The N39200 operates as a unidirectional DC source. A voltage setpoint and current limit are defined for each output. With a sufficiently high load impedance, the channel regulates its output voltage in CV mode. When the programmed current limit is reached, the channel changes to CC mode and regulates the output current.
The CV/CC priority function determines which control loop is prioritised during output start-up and transitions between operating states. The voltage setpoint and current limit remain unchanged; the dynamic response of the control system is adjusted.
CV priority: Suitable when a fast and smooth voltage rise is required, for example when powering sensitive low-voltage circuits.
CC priority: Suitable for low-impedance or capacitive devices under test where controlled current rise and reduced current overshoot are required.
Models and power ranges
The available models differ in output voltage, output current and power per channel. Every instrument provides two isolated output channels.
| Model | Voltage per channel | Current per channel | Power per channel | Channels |
|---|---|---|---|---|
| N39220-60-10 | 0 to 60 V | 0 to 10 A | 200 W | 2 |
| N39240-60-20 | 0 to 60 V | 0 to 20 A | 400 W | 2 |
| N39260-60-20 | 0 to 60 V | 0 to 20 A | 600 W | 2 |
| N39220-150-04 | 0 to 150 V | 0 to 4 A | 200 W | 2 |
| N39240-150-08 | 0 to 150 V | 0 to 8 A | 400 W | 2 |
| N39260-150-08 | 0 to 150 V | 0 to 8 A | 600 W | 2 |
Output voltage, output current and channel power must be considered together. The maximum current is available only within the power limit of the selected model.
Dynamic response, resolution and regulation
The technical specifications distinguish between programmed values and readback values. The stated accuracy values apply at 23 ±5 °C. For accurate measurements, the manufacturer recommends a warm-up period of approximately 30 minutes.
| Parameter | 60 V models | 150 V models | Technical relevance |
|---|---|---|---|
| Voltage resolution | 1 mV | 10 mV | Resolution for programming and reading back the output voltage. |
| Voltage accuracy | 0.05% + 0.1% F.S. | 0.05% + 0.1% F.S. | Applies to programming and readback at 23 ±5 °C. |
| Current resolution | 1 mA | 1 mA | Resolution for programming and reading back the output current. |
| Current accuracy | 0.1% + 0.1% F.S. | 0.1% + 0.1% F.S. | Applies to programming and readback at 23 ±5 °C. |
| Voltage ripple | ≤100 mVpp / ≤10 mVrms | ≤150 mVpp / ≤15 mVrms | Measured across a bandwidth of 20 Hz to 20 MHz. |
| Voltage line regulation | ≤0.015% | ≤0.015% | Describes output variation caused by changes in the AC supply. |
| Voltage load regulation | ≤0.03% | ≤0.03% | Describes voltage variation when the connected load changes. |
| No-load voltage rise time | ≤50 ms | ≤50 ms | Time required for the voltage to rise under the defined test condition. |
| No-load voltage fall time | ≤50 ms | ≤50 ms | Time required for the voltage to fall under the defined test condition. |
| Temperature coefficient | 50 ppm/°C | 50 ppm/°C | Temperature coefficient across an operating temperature of 0 to 40 °C. |
Operating modes and programmable functions
Direct setpoint control
V/I mode provides independent voltage and current-limit settings for both channels. Setpoints, readings, output power and operating status are shown on one screen.
Voltage-priority regulation
The voltage control loop is prioritised when a fast and smooth voltage rise is required for high-impedance or sensitive circuits.
Current-priority regulation
The current control loop is prioritised when low-impedance or capacitive loads require controlled current rise behaviour.
Sequence and profile operation
Up to 10 sequence files can contain a maximum of 200 steps in total. Voltage, current, dwell time and voltage and current rise times are defined for each step.
Sequence files support repeat cycles and links to additional files, allowing longer test procedures to be assembled from several stored profiles.
Typical applications
Two isolated outputs, programmable profiles and PC-based control make the series suitable for recurring supply and functional tests on electronic components and assemblies.
Development and component validation
Electronic assemblies are powered at defined DC operating points. Fine setpoint resolution, readback and Remote Sense support repeatable functional testing.
Test solutions for automotive and e-mobility
Control units and automotive electronics can be supplied with programmed voltage and current profiles. Sequence operation supports start-up and supply-voltage scenarios.
Production and end-of-line testing
Assemblies are powered and tested at repeatable operating points. Stored sequences and LAN or RS232 control simplify integration into automated stations.
System integration and ATE
Two independent channels reduce the number of separate power supplies required in a test system. PC interfaces support central programming, monitoring and data recording.
Capacitive and low-impedance devices
CC priority can be selected for devices with high input capacitance or low impedance to provide more controlled current rise behaviour.
Production ageing tests
Electronic devices and assemblies can be operated at defined voltage and current levels over extended test cycles and monitored using the PC software.
Interfaces, software and automation
The series supports both local operation and integration into computer-controlled test systems. LAN and RS232 cables and the PC software are included as standard accessories.
| Function | Status | Technical implementation | Integration benefit |
|---|---|---|---|
| LAN | Standard | Two Ethernet ports, UDP communication, default IP 192.168.0.123, default port 7000 | Remote operation and connection of multiple instruments to a central computer. |
| RS232 | Standard | Baud rates of 9,600, 19,200, 38,400, 57,600 and 115,200 | Serial integration into existing test and control systems. |
| PC software | Standard | Hardware configuration, channel control, system configuration, historical data and voltage and current charts | Programming, online control and monitoring from a Windows PC. |
| Remote Sense | Standard | Four-wire S+ and S− connection for each channel | Compensation of voltage drops between the power supply and the device under test. |
| Host/Slave interface | Standard | Connection between CH1 and CH2 for internal parallel operation | Synchronised regulation of the two parallel-connected outputs. |
| Touchscreen and controls | Standard | 4.3-inch touchscreen, rotary control, function keys and virtual keypad | Direct local operation and fast setpoint entry at the test station. |
Parallel operation and internal scaling
The internal parallel connection of CH1 and CH2 is designated as Cascade Mode. The positive output terminals are connected together, as are the negative terminals. The Host port of one channel is also connected to the Slave port of the other channel.
During parallel operation, the maximum output voltage remains equal to the rating of one channel. Available output current and power are doubled by combining the two identical channels. The controlling channel is selected in the system menu.
Technical distinction: Cascade Mode is a parallel connection of the two internal channels. It is not series operation and therefore does not increase the maximum output voltage.
The Host and Slave connections must not be reversed or connected as Host-to-Host or Slave-to-Slave.
Installation and infrastructure
| Characteristic | Requirement | Planning information |
|---|---|---|
| AC input | Single-phase, 220 V AC ±10% | Check the voltage marking on the rear panel before connecting the instrument. |
| Line frequency | 47 to 63 Hz | Suitable for standard 50 Hz and 60 Hz supplies within the specified range. |
| Form factor | 2U, half 19-inch width | Compact installation on a laboratory bench or within a suitable rack system. |
| Dimensions | 88 × 214 × 546 mm | Height × width × depth. |
| Net weight | Approx. 7 kg | Consider the required mechanical support for rack or system integration. |
| Operating temperature | 0 to 40 °C | Accuracy specifications apply under the stated measurement conditions. |
| Storage temperature | −20 to 60 °C | Range for storage and transportation. |
| Relative humidity | 5 to 90% RH, non-condensing | Condensation on or inside the instrument must be avoided. |
| Altitude | Below 2,000 m | Operation above this altitude requires separate technical verification. |
| Protective grounding | Reliable protective earth connection required | The instrument must only be operated with a correctly connected protective conductor. |
Output cables must have a conductor cross-section suitable for the maximum current. Remote Sense should be used when cable voltage drops are significant. When Remote Sense is not used, the supplied Sense connector with its factory-installed bridges must remain fitted.
Protection and safety functions
Overvoltage protection
If the output voltage exceeds the programmed OVP threshold, the affected output is switched off and an alarm is displayed.
Overcurrent protection
When the programmed OCP threshold is exceeded, the instrument disables the output and indicates the triggered protection status.
Overpower protection
The OPP threshold limits permissible output power. The output is disabled when the protection function is triggered.
Overtemperature protection
The internal temperature protection disables the output during an overtemperature condition and displays the corresponding warning.
Protection alarms are shown on the display and can be cleared with the PROT-CLR function once the cause has been corrected. Disconnect the instrument from the AC supply before connection work, maintenance or cleaning.
N39200 series FAQ
Which N39200 model is suitable for my application?
Selection is based on the required maximum voltage, current and power per channel. The range includes 60 V and 150 V models rated at 200 W, 400 W or 600 W per channel.
Can the two channels provide different outputs?
Yes. CH1 and CH2 are isolated from each other and can be programmed, enabled and monitored independently during normal operation.
Can the two channels be connected in series?
Series operation is not part of the specified functionality. Cascade Mode is exclusively a parallel connection for increasing current and power.
How many steps are supported in sequence operation?
Up to 10 sequence files can be created, with a maximum of 200 steps available across all files.
When should CC priority be selected?
CC priority is intended for low-impedance or highly capacitive devices where controlled current rise and reduced current overshoot are important.
Which interfaces are included as standard?
The instruments provide two LAN ports, RS232, Remote Sense and Host/Slave connections for internal parallel operation.
Can cable voltage drop be compensated at the load?
Yes. The four-wire Sense terminals measure voltage directly at the device under test and compensate for voltage drop along the power leads.
What calibration interval is recommended?
Annual calibration of the N39200 series is recommended.
Technical consultation and project enquiry
To select the appropriate N39200 model, we require the necessary voltage, maximum current, power per channel and information about the device under test and planned test procedure.
For automated systems, we also review the required communication method, sequence control, number of test channels and mechanical integration.
Send a technical enquiry