DC Power Supplies

Benchtop and rackmount autoranging power supply

DC Power Supplies

Bidirectional Power

Industrial Series

DC Electronic Load

EA Programmable DC Power Supplies

The programmable DC power supply family from EA range in power from 80W benchtop devices up to 30kW in a single chassis. High power density units can be easily paralleled up to 1,92MW in output, with up to 2000 VDC. All EA Elektro-Automatik DC programmable power supplies feature true Autoranging which automatically offers increased current at lower voltages, enabling a single supply to meet wider test requirements.

The PS and PSI series feature 5 “TFT touch panel display for intuitive control, setup and programming. The intelligent interface allows you to program and test quickly without the need for extensive manual review. This user-friendly touchscreen is a feature not found on competing benchtop supplies.

Most of the PS / I family of programmable dc power supplies come standard with an arbitrary waveform function generator, swappable digital interface control and built-in test routines for battery test, photovoltaic simulation and MPP tracking, to name a few.

True Autoranging – Advantages for Test

All EA power supplies provide true autoranging giving full power across a larger operating range to test more devices with just one supply. Autoranging enables the power supply to automatically adapt to higher output voltages when there is a smaller current or handle higher currents when there is a lower voltage. EA’s true autoranging can deliver full power down to 33% of rated output voltage.

  • Save budget and space
  • No oversizing supply
  • One supply tests more
  • Versatile for future tests

Waveform Function Generator

A common requirement for dc power supplies is to deliver the output voltage or current with a waveform other than a straight-line dc signal. EA’s built-in function generator includes options for sine, triangle, square, and trapezoidal waveforms, as well as custom arbitrary waveforms. In addition, the solution offers configuration tools for ramps, UI and IU tables and simulations for fuel cells and photovoltaics.

Swappable Anybus Remote Control

EA “Anybus” modules are easily installed by the user and can be swapped out with just a few minutes and a screwdriver when different communication protocols are desired. For computer or remote control, you have many choices, such as Ethernet, USB, EtherCAT, ProfiNET, ProfiBUS, CAN, CANOpen, Modbus, Devicenet and RS232 interfaces.

Device Types and Series

19 Inch slide-in housing

(Series, PS and PSI)

Technical Specifications

  • Nominal power: 0 – 1000 W to 0 – 30 kW (Systems up to 3840kW)
  • Nominal voltage: 60V to 2000V
  • Nominal current: 0-6A to 0-1000A (Systems up to 64000A)
EL 2U_3U


  • Autoranging
  • Color Touchscreen 
  • Primary clocked, with autoranging output
  • Externally controlled via analog and digital interfaces
  • Permanently integrated interfaces and “plug n play” slot
  • State-of-the-art µ-processor or FPGA control
  • Modular highly insulated architecture
  • PV (Solar) Simulation
  • Battery and fuel cell simulation
  • function generator sine, rectangle, trapezoid, ramp, arbitrary
  • Alarm Manager, User Profiles
  • Suitable for 19″ integration
  • Analog, Ethernet, USB, CAN, Profibus and many more
  • Operator Software EA Power Control (Freeware), Multi-Control “App” (license required)
  • Ethernet / USB / Analog as standard / plug’n’play-Slot for additional interfaces

Space Saving Instruments in Desktop/Tower Style

(Series, PS and PSI)

Technical Specifications

  • Nominal power: 320W, 640W, 1000W, 1500W
  • Nominal voltage: 40V, 80V, 200V, 750V
  • Nominal current: 0 to 0-60A


  • Autoranging
  • Color Touchscreen
  • Wide entrance area 90…264V with active PFC
  • Higher efficiency to 92%
  • USB standard, Ethernet & Analog optional
  • LabVIew-Vis
  • 40V-Models according to SELV under EN 60950
  • Plug’n’play-Slot for USB, USB+LAN or USB+Analog

Cabinet System

Modules / Power / Series

  • Modular rack systems with 42U, 38U, 24U and 15U
  • Integrable devices in height units 3U, 4U and 6U
    • 300 kW in only one 42U rack with 5 units á 60 kW/6U
    • 3.84 MW in only 13 racks with up to 64 devices
  • Integrable series:
    • EA-10000
    • EA-10000 Industrial
    • EA-BT 20000 


Select devices and integrate into the rack

New high-performance systems are constantly being developed for the electrification of the world. Associated with this is the testing requirement for the battery packs, fuel cell stacks, solar systems or electrolysis systems (or: electrolysers). With the modular EA rack system you have the possibility to select the suitable devices for your tests and simulations and to integrate them into the modular EA rack system

Power supplies and loads

Configure 3U, 4U and 6U devices into 42U, 38U, 24U and 15U rack systems. Combine EA-10000 and EA-10000 Industrial series programmable power supplies, bidirectional power supplies, or regenerative loads. System performance can be increased by connecting devices in parallel. In a 42U rack with 5 units of 60 kW you can reach 300 kW, for the maximum power of 3.84 MW you can connect up to 64 units in 13 racks.

  • Application for battery, photovoltaics, electrolysis, fuel cell and many more
  • For 380 V, 400 V and 480 V AC
  • Programmable power supplies (PSI, PS, PU), Bidirectional Power supplies (PSB, PSBE, PUB) and regenerative loads (ELR, PUL).
  • Intuitive operation through the multilingual color TFT touch panel
  • Function generator
  • Extensive protective functions (OVP, OCP, OT, …)
  • USB, Ethernet and analog interface as standard
  • Plug & Play slot for digital interfaces
  • All interfaces galvanically isolated
  • Control software EA Power Control
  • Simulation software EA Battery Simulator
  • LabVIEW VI User Library
  • IVI driver package
  • DBC-Files
  • SCPI and ModBus protocol
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