PLI Series

  • Features
  • Details
  • Type Overview


• Voltage up to 800 Vtl_files/upload/produkte/Serie PLI/5HE_PLI_Gerät_01_22_5CW_LO.gif
• Current up to 2,700 A
• Power 600 W ... 28,800 W
• Temporary overload capacity, depending on model
• High power density up to 2,100 W in 2HU (3,200W in 3HE)
• Ethernet + USB + RS-232 + CAN as standard (GPIB optional)
• Intuitive operation
• Quick operation by shortcuts

• Current, voltage, resistance and power mode
MPPT Function
• Energy Storage Test
• Internal Resistance Measurement
• Protections for current and voltage

• Dynamic loads
• SCPI programming with measurement function

• USB stick as measurement data memory
• Electronic protection
• Analog measurement outputs for voltage and current
• Analog control input
• Digital input and programmable control output
• Silent fan cooling


The PLI series of electronic loads provide a comfortable operation by a graphical user interface. 
The PLI series highligh is the extensive variety of standard interfaces. Apart from Ethernet, USB, RS-232 and Analog interface there is a standard CAN interface.Programming is done in SCPI syntax.

The units provide constant current mode, constant voltage mode, constant power mode and constant resistance mode.In addition protections for current and voltage can be set in any mode. Dynamic operation can be configured by up to 300 list point settings. A data acquisition function allows to store measurement data on an external USB flash drive.

Additional features

Energy Storage Test
An implemented test function enables discharging energy storages such as accumulators, batteries, ultracaps etc. in an easy way and supplying determined values like charge and energy.

Internal Resistance Measurement
Measurement of the internal DC resistance of energy storage systems such as batteries, accumulators, capacitors, as well as cables, power supplies and so on.

MPP Tracking (Optional)
The Electronic Load automatically searches for the Maximum Power Point of solar panels and self-adjusts as the sun's radiation changes.

Loading capacity
The model range covers power classes from  600 W, up to 28,000 W continuous power rating.
In addition the models up to 300 V have an overload capability. The height and duration of the possible overload depends on the temperature of the power stage. The unit indicates the currently possible overload. Therefore the units can be used  even for considerably more powerful applications.


  • Current limitation
  • Power limitation
  • Over-temperature protection
  • Under-voltage indicator
  • Protection of the  GND lines at the  Analog I/O Port

Data Interfaces
The following interfaces are included as standard:

  • Ethernet
  • USB
  • RS-232
  • CAN
  • Analog

LabVIEW driver is available

Analog I/O Port
The standard Analog I/O Port provides the following functions:

  • Load setting C and V
  • Analog setting the C and V protections
  • Load on-off
  •Voltage monitor output
  •Current monitor output
  • Trigger input
  • Trigger output
  • Programmable digital input and  control output

Galvanically isolated Analog I/O Port
For the galvanic isolation between the Analog I/O Port and the load terminals the PLI06 option can be installed.

Using this board also prevents ground loops.

Factory Calibration Certificate
A Factory Calibration Certificate (FCC) can be supplied with the devices. The FCC meets the requirements according to DIN EN ISO 9000ff. This calibration certificate documents the traceability to national standards to illustrate the physical device in accordance with the international  System of Units  (SI). The recommended calibration interval is 2 years.

We supply a User Manual as pdf file and printed General Safety Instructions, each in German and English.


Type Overview