DC Load – 4700 Series

High-Current DC Electronic Load for Telecom Rectifier Testing, Traction Battery Testing, Vehicle to Grid (V2G) Testing, & More!


  • 8 sizes – 1 to 36kW @ 120 or 600V
  • High-resolution waveform capture for analysis of dynamic transients
  • 18 built-in, precision voltage, current, power and timing measurements that eliminate additional dedicated measurement instruments
  • Isolated digital inputs and outputs for test fixture support
  • PC/LAN control using LabVIEW & IVI drivers
  • Optional touch-panel user interface
DC Load (High Voltage) - 4700 series

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There are 2-types of programmable dc electronic loads in this general-purpose, medium-to-high-power electronic load family. The 4700 is a relatively low-voltage DC load (120V) with high-current capability. The high-voltage DC load (4760 Series) is a high-voltage electronic load (600V).

The High-Current DC Electronic Load (4700 Series) is used in a wide variety of applications that involve automated testing of power conversion device outputs to simulate real-world loading conditions. Such devices include DC power supplies, telecom rectifiers, and traction batteries.


programmable dc electronic load model 4700

  • Field-proven reliability
  • Simplifies automated test stand development
    – Triggerable set & measurement
    – True short circuit mode & over voltage relay
    – Digital inputs & outputs
    – Built-in SW watchdog & safety limits
  • Software tools to shorten test development time
    – PC-based Softpanel GUI with scope display
    – Supplied LabVIEW & IVI-C/IVI-COM drivers
    – Optional: DC Load, emPower®, or Enerchron® test sequencer


  • Field upgradeable (6kW steps)
  • Built in features require fewer test devices
  • Safety limits protect UUT

4700 Series DC Electronic Load Specifications

Model # 4700-1-TP 4700-2-TP 4700-3-TP 4700-6-TP 4700-12-TP 4700-18-TP 4700-24-TP 4700-36-TP*
Power 1kW 2kW 3kW 6kW 12kW 18kW 24kW 36kW
Current 200A 400A 600A 1200A 2400A 3600A 4800A 7200A
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
5 1/4 x 19 x 22″/
133 x 483 x 559mm
5 1/4 x 19 x 22″/
133 x 483 x 559mm
10 1/2 x 19 x 22″/
267 x 483 x 559mm
10 1/2 x 19 x 22″/
267 x 483 x 559mm
35 x 23 x 30″/
889 x 584 x 762mm
43 x 23 x 30″/
1092 x 584 x 762mm
57 x 23 x 30″/
1448 x 584 x 762mm
72 x 23 x 30″/
1829 x 584 x 762mm
Weight 40lbs/
* The above specifications show typical configurations. Contact NH Research, Inc. for higher power ratings.

More Info

programmable dc electronic load model 4700

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Application Testing

The Model 4700 DC Electronic Load is useful for testing the following applications & products:
DC Power Supplies, Power Conversion, Telecom Rectifiers, Traction Batteries, Vehicle to Grid (V2G) Testing