Four control modes
UI, UIP, UIR and PVSim limit voltage, current and power or emulate internal resistance and a PV characteristic.
LAB/HP – Programmable High-Power DC Power Supply up to 63 kW
For high-power DC testing in laboratories and production, with programmable power profiles and PV curves.
The LAB/HP series combines programmable DC output power from 3 to 63 kW with voltages up to 1,500 V and currents up to 2,250 A. Its modular 19-inch design provides up to 21 kW in 3U for manual laboratory work and automated test sequences.
Scripts and characteristics
Stored command sequences and freely defined V/I characteristics enable repeatable routines without continuous PC control.
Analogue and digital control
Galvanically isolated ATI 5/10, RS232 and LAN integrate setpoints, measurements, status and soft interlock into test systems.
Up to eight units
The ETS bus coordinates series, parallel or independent configurations and distributes setpoints to all connected units.
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]
LAB/HP 315
|
Description
LAB/HP 315 DC high-power source, 3 kW, 15 V, 250 A, M/S connectable, Made in Germany
|
Current [A]
250
|
Power [P]
3000
|
Voltage [V]
15
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 320
|
Description
LAB/HP 320 DC high-power source, 3 kW, 20 V, 250 A, M/S connectable, Made in Germany
|
Current [A]
250
|
Power [P]
3000
|
Voltage [V]
20
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 325
|
Description
LAB/HP 325 DC high-power source, 3 kW, 25 V, 240 A, M/S connectable, Made in Germany
|
Current [A]
240
|
Power [P]
3000
|
Voltage [V]
25
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 330
|
Description
LAB/HP 330 DC high-power source, 3 kW, 30 V, 234 A, M/S connectable, Made in Germany
|
Current [A]
234
|
Power [P]
3000
|
Voltage [V]
30
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 335
|
Description
LAB/HP 335 DC high-power source, 3 kW, 35 V, 200 A, M/S connectable, Made in Germany
|
Current [A]
200
|
Power [P]
3000
|
Voltage [V]
35
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 340
|
Description
LAB/HP 340 DC high-power source, 3 kW, 40 V, 175 A, M/S connectable, Made in Germany
|
Current [A]
175
|
Power [P]
3000
|
Voltage [V]
40
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 345
|
Description
LAB/HP 345 DC high-power source, 3 kW, 45 V, 156 A, M/S connectable, Made in Germany
|
Current [A]
156
|
Power [P]
3000
|
Voltage [V]
45
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 350
|
Description
LAB/HP 350 DC high-power source, 3 kW, 50 V, 140 A, M/S connectable, Made in Germany
|
Current [A]
140
|
Power [P]
3000
|
Voltage [V]
50
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 360
|
Description
LAB/HP 360 DC high-power source, 3 kW, 60 V, 117 A, M/S connectable, Made in Germany
|
Current [A]
117
|
Power [P]
3000
|
Voltage [V]
60
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 370
|
Description
LAB/HP 370 DC high-power source, 3 kW, 70 V, 100 A, M/S connectable, Made in Germany
|
Current [A]
100
|
Power [P]
3000
|
Voltage [V]
70
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 380
|
Description
LAB/HP 380 DC high-power source, 3 kW, 80 V, 88 A, M/S connectable, Made in Germany
|
Current [A]
88
|
Power [P]
3000
|
Voltage [V]
80
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 3100
|
Description
LAB/HP 3100 DC high-power source, 3 kW, 100 V, 70 A, M/S connectable, Made in Germany
|
Current [A]
70
|
Power [P]
3000
|
Voltage [V]
100
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 3150
|
Description
LAB/HP 3150 DC high-power source, 3 kW, 150 V, 47 A, M/S connectable, Made in Germany
|
Current [A]
47
|
Power [P]
3000
|
Voltage [V]
150
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 3300
|
Description
LAB/HP 3300 DC high-power source, 3 kW, 300 V, 24 A, M/S connectable, Made in Germany
|
Current [A]
24
|
Power [P]
3000
|
Voltage [V]
300
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 3600
|
Description
LAB/HP 3600 DC high-power source, 3 kW, 600 V, 12 A, M/S connectable, Made in Germany
|
Current [A]
12
|
Power [P]
3000
|
Voltage [V]
600
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 3800
|
Description
LAB/HP 3800 DC high-power source, 3 kW, 800 V, 9 A, M/S connectable, Made in Germany
|
Current [A]
9
|
Power [P]
3000
|
Voltage [V]
800
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 31000
|
Description
LAB/HP 31000 DC high-power source, 3 kW, 1000 V, 7 A, M/S connectable, Made in Germany
|
Current [A]
7
|
Power [P]
3000
|
Voltage [V]
1000
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 31200
|
Description
LAB/HP 31200 DC high-power source, 3 kW, 1200 V, 5.8 A, M/S connectable, Made in Germany
|
Current [A]
5,8
|
Power [P]
3000
|
Voltage [V]
1200
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 31500
|
Description
LAB/HP 31500 DC high-power source, 3 kW, 1500 V, 4.7 A, M/S connectable, Made in Germany
|
Current [A]
4,7
|
Power [P]
3000
|
Voltage [V]
1500
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 415
|
Description
LAB/HP 415 DC high-power source, 4 kW, 15 V, 500 A, M/S connectable, Made in Germany
|
Current [A]
500
|
Power [P]
4000
|
Voltage [V]
15
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 420
|
Description
LAB/HP 420 DC high-power source, 4 kW, 20 V, 250 A, M/S connectable, Made in Germany
|
Current [A]
250
|
Power [P]
4000
|
Voltage [V]
20
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 425
|
Description
LAB/HP 425 DC high-power source, 4 kW, 25 V, 240 A, M/S connectable, Made in Germany
|
Current [A]
240
|
Power [P]
4000
|
Voltage [V]
25
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 430
|
Description
LAB/HP 430 DC high-power source, 4 kW, 30 V, 234 A, M/S connectable, Made in Germany
|
Current [A]
234
|
Power [P]
4000
|
Voltage [V]
30
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP 435
|
Description
LAB/HP 435 DC high-power source, 4 kW, 35 V, 200 A, M/S connectable, Made in Germany
|
Current [A]
200
|
Power [P]
4000
|
Voltage [V]
35
|
High Power DC Source
Technical Data
Product category
DC Power Supply
Type of DC source
Standard DC Source
LAB/HP programmable DC power supply overview
The LAB/HP series is a microcontroller-controlled high-power DC source for laboratories, development and automated test systems. It covers power classes from 3 to 63 kW, voltage variants up to 1,500 V and current variants up to 2,250 A. A 2,000 V version is available as an option after the application has been reviewed. Depending on power and current class, the modular 19-inch design ranges from 2U to 9U; up to 21 kW is available in 3U.
The TFT touch display presents setpoints and measured values for voltage, current, power and load resistance. In addition to conventional voltage/current control, the unit offers power limiting, internal-resistance emulation, PV characteristic simulation and freely programmable characteristics. For test-system integration, the standard version includes a galvanically isolated ATI 5/10 analogue interface, RS232, LAN, soft interlock and ETS-bus master/slave. The reduced-function LAB/HP/E version omits master/slave, soft interlock, UIP, UIR and PVSim, among other features.
Key benefits
Broad power scaling
Thirteen power classes from 3 to 63 kW and numerous voltage/current combinations support precise adaptation to the operating point.
High power density
Up to 21 kW fits into a 3U 19-inch enclosure; very high-current low-voltage versions may require more rack space.
Programmable characteristics
PVSim and User mode reproduce PV or freely defined V/I characteristics for repeatable operating points and curve profiles.
Autonomous sequences
Scripts of up to 1,000 commands control setpoints, delays, loops and output states directly from the storage medium.
Compensate cable drop
Remote sense compensates voltage drops up to 10 percent of rated output voltage within the permissible characteristic.
Flexible system topologies
Up to eight units can be coordinated through the ETS bus for parallel, series or electrically independent outputs.
Operating principle and control
A microcontroller generates the commands for the analogue power regulator. In UI mode, voltage and current setpoints are passed directly to the switch-mode regulator. In UIP mode, an additional digital controller limits output power. UIR calculates the voltage setpoint from output current and the selected internal resistance according to Vtarget = Vset - Iout × Ri, thereby emulating a source with internal resistance.
PVSim uses open-circuit voltage, short-circuit current, and voltage and current at the maximum power point. User-defined characteristics can store support points and run them as stepped or linearly interpolated curves. Current and voltage rise ramps can be limited separately when leaving standby.
Power range and unit selection
The following classes cover the complete standard power range in the data sheet. The voltages are example variants; other voltages are planned from a quantity of one. Current rating, voltage rating and nominal power must be considered together: usable current at the operating point is limited by both the current rating and the power limit.
| Nominal power | Basic enclosure | Example voltage range | Highest current rating in matrix |
|---|---|---|---|
| 3 kW | 2U | 15-1,500 V | 250 A |
| 4 kW | 2U | 15-1,500 V | 500 A |
| 5 kW | 2U | 15-1,500 V | 500 A |
| 7 kW | 2U | 15-1,500 V | 500 A |
| 10 kW | 3U | 15-1,500 V | 666 A |
| 15 kW | 3U | 15-1,500 V | 1,000 A |
| 21 kW | 3U | 20-1,500 V | 1,250 A |
| 30 kW | 6U | 20-1,500 V | 1,500 A |
| 35 kW | 6U | 20-1,500 V | 1,750 A |
| 45 kW | 6U | 20-1,500 V | 2,250 A |
| 49 kW | 9U | 25-1,500 V | 2,000 A |
| 56 kW | 9U | 25-1,500 V | 2,250 A |
| 63 kW | 9U | 30-1,500 V | 2,100 A |
Selection note: Some low-voltage, high-current variants differ from the basic enclosure, including 15 kW at 15 V and 21 kW at 20 or 25 V. The exact height, depth, mains version and terminal arrangement must therefore be defined for the selected configuration.
Operating modes and programmable functions
| Function | Operation | Purpose |
|---|---|---|
| UI | Direct voltage and current limiting | Conventional constant-voltage or constant-current operation |
| UIP | UI control with an additional power limit | Restricts the operating point to a defined maximum output power |
| UIR | Voltage control with adjustable simulated internal resistance | Emulates the behavior of a non-ideal voltage source |
| PVSim | PV characteristic using VOC, ISC, VMPP and IMPP | Provides defined operating points of a photovoltaic source |
| User characteristic | Stepped or linearly interpolated V/I support points | Creates application-specific output characteristics |
| Script | Up to 1,000 commands with delays, loops and WAIT | Automates repeatable sequences directly on the unit |
| t-Enable | Time-limited operation after start | Returns the source to standby after the specified duration |
| V-Slope / I-Slope | Separately adjustable voltage and current ramp | Limits setpoint change when leaving standby |
Dynamics, stability and measured values
Depending on voltage class, full-load rise times range from 6 to 40 ms and full-load fall times from 15 to 100 ms. For the 1,401 to 1,500 V class, the specified values are 6 ms rise time and 25 ms fall time. After dynamic load changes, output voltage returns within 0.5 percent of rated output plus/minus 25 mV in less than 3 ms.
| Characteristic | Specification |
|---|---|
| Static regulation | plus/minus 0.1% of full scale |
| Voltage/current stability during line variation | plus/minus 0.02% of full scale in each case |
| Voltage stability during load variation | plus/minus 0.05% of full scale plus/minus 20 mV |
| Current stability during load variation | plus/minus 0.05% of full scale plus/minus 20 mA |
| Voltage / current setpoint accuracy | 0.1% / 0.2% |
| Analogue interface | Setpoint accuracy with internal reference plus/minus 0.5%; response time < 10 ms |
| High-speed option | Reduced output capacitance; rise and fall times shortened by an average factor of 10 |
Typical applications
PV characteristics and MPP operating points
PVSim reproduces open-circuit voltage, short-circuit current, and the voltage and current at the maximum power point of a PV source.
Automated test sequences
Digital remote control, scripts and optional data logging support repeatable routines up to a self-contained test station.
Varistor testing
t-Enable limits active output time and automatically returns the source to standby afterwards.
Motor starting and inductive loads
Timed operation supports examination of motor-starting processes; the optional freewheeling diode protects against negative induced voltage.
Laser-diode testing
Adjustable voltage and current rise ramps limit the rate of change when the output is enabled.
Battery-coupled supply
The optional series decoupling diode prevents unwanted feedback and simplifies connection of the source to a battery.
Interfaces and automation
| Equipment | Status | Function |
|---|---|---|
| ATI 5/10 | Standard LAB/HP | Galvanically isolated 0-5 V / 0-10 V analogue interface for V, I, P and OVP, monitor values, status and soft interlock |
| RS232 and LAN | Standard LAB/HP | Digital remote control; LAN supports browser monitoring and operation as well as control through port 10001 |
| IEEE 488, RS485, USB | Options | Additional digital interfaces; a maximum of three digital interfaces in total |
| USB port / storage medium | Standard LAB/HP | Loads and manages scripts and user-defined characteristics |
| Data logger | Option | Saves measured values to the storage medium at adjustable intervals |
| Remote sense | Unit function | Compensates voltage drop between the output and load |
| Leadless remote sensing | Option | Simulates a negative internal resistance and corrects cable drop as a function of output current |
ETS bus, parallel and series operation
Up to eight LAB/HP units can be connected through the ETS bus. The USB Type-A cables are used exclusively as bus cables and must not be connected to a USB interface. There is no permanently assigned master unit: setpoints are forwarded from the unit currently being operated to all participants.
In parallel mode, the system displays total current; in series mode, it displays total voltage. Distribution between individual units is not necessarily symmetrical. In independent mode, the outputs remain electrically separate and exchange only setpoints through the bus. A maximum of 2,000 V is specified for series connection. Master/slave cannot be combined with operation from the storage medium.
Protection functions and options
| Function | Effect |
|---|---|
| OVP, UVP, OCP, OTP | Monitor overvoltage, undervoltage, overcurrent and heat-sink temperature; UVP and OCP have adjustable delays. |
| Foldback | Switches off the output after 10 ms to 10 s when the selected CV, CC or CP limit is reached. |
| FD | Optional freewheeling diode for negative induced voltage from motors and inductive loads. |
| DDS | Optional series decoupling diode against feedback and overvoltage up to 150% of maximum output voltage. |
| POP / AOP | Optional passive suppression of voltage peaks or active absorption of longer-lasting overvoltage by an internal load. |
| PR | Optional polarity reversal exclusively in de-energized standby. |
| Pulsed output | Optional periodic switch-off at 2-500 Hz and 1 to 4,000,000 pulses or continuous oscillation; digital control only. |
| EMO | Optional emergency shutdown that actively short-circuits the DC output after mains switch-off and reduces it below 60 V within 10 s. |
Installation and environmental conditions
| Characteristic | Configuration / requirement |
|---|---|
| Mains versions | 1 × 230 VAC for 3-5 kW; three-phase 200, 208, 400, 440 or 480 VAC depending on version; 47-63 Hz |
| Typical efficiency | 94% |
| Cooling | Temperature-controlled fans; maximum airflow 310 m³/h per 7.5 kW module |
| Operating temperature | 0 to 50 °C |
| Storage / humidity / altitude | -20 to 70 °C / < 80% / < 2,000 m |
| Ingress protection | IP20; overvoltage category II; pollution degree II |
| Dimensions | 19-inch, 2U to 9U, 440 to 620 mm deep depending on configuration; individual high-current versions differ |
| Specified standards | EN 61010-1:2010, EN 61326-1:2013 and EN IEC 63000:2018 |
The protective conductor, mains cable, external overcurrent protection, DC cables and ventilation must be sized for the selected power class. Heated exhaust air must be safely removed when the unit is installed in a rack.
LAB/HP series FAQ
How is the appropriate LAB/HP version selected?
All required voltage/current operating points, nominal power, enclosure height, mains version, interfaces and options are decisive. Particularly high currents may require a larger enclosure.
Can maximum voltage and maximum current be used simultaneously?
Only within the nominal power of the selected unit. Both current rating and power limit restrict the operating point, so V, I and P must be checked together.
What is the difference between LAB/HP and LAB/HP/E?
LAB/HP/E is the reduced-function version. Master/slave, soft interlock, and UIP, UIR and PVSim modes are not available.
Which interfaces are available?
The standard LAB/HP includes ATI 5/10, RS232 and LAN. IEEE 488, RS485 and USB are optional digital interfaces; up to three digital interfaces are possible.
How much cable drop can remote sense compensate?
Within the output characteristic, it can compensate a maximum of 10 percent of maximum output voltage. Sense leads must never carry load current.
Can the LAB/HP simulate a PV source?
Yes. PVSim uses open-circuit voltage, short-circuit current and the MPP operating point to reproduce the characteristic of a PV generator.
Can test sequences run without an active PC?
Yes. Scripts containing up to 1,000 commands can be loaded from the storage medium and started automatically. Data logging is a separate option.
Is the source suitable for motor-start testing?
Yes. t-Enable provides time-limited power for examining motor-starting processes. The optional freewheeling diode is provided for induced reverse voltage.
How does the LAB/HP support laser-diode testing?
Separately adjustable V-Slope and I-Slope functions limit the voltage or current rise when the output is enabled.
Technical consultation and project enquiry
To configure the unit, we need the required voltage, current and power operating points, the available mains supply and rack space. Please also specify the desired interfaces, control modes, dynamics, protection options and requirements for sense or multi-unit operation.
