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ELS Series

DC Electronic Load System

The standardized DC electronic load system is formed with 7U height units. The maximum input current and power of a single cabinet is up to 3000A, 73.5kW. Support master-slave configuration to increase the input capacity to 294kW. These cabinets use world famous circuit breaker to control the input of DC E-load moudle inside. After power on, the specified unit will be configured as a Master to control all of the slave units. In an emergency off situation the EMS will cut all units in the cabinet from AC supply, ensure safe operation.

Product Features

Adjustable current slew rate, adjustable CV loop speed

Ultra high precision voltage & current measurement

Short circuit test mode

Auto mode function provides an easy way to do complicated test

V-monitor/I-monitor

Full protection: OCP, OPP, OTP, over voltage and reverse alarm

Provides four kinds of basic working mode such as CV/CC/CR/CP, and CV+CC/CV+CR/CR+CC complex operating modes

Equipped with Emergency Stop, physically off all managed DC eLoads at once

Back door with protect switch, safe to the operator

Front panel USB interface supports data import and export

Using standard SCPI communication protocol

Function & Advantage

Flippable Front Panel and Color Touch Screen

This series High Power DC Load is equipped with flippable front panel for 4U, 7U, 10U and 13U height models. Together with a large color touch screen provides simple and fast operation for customer. Real-time update of display input data, status and graphical display makes it more intuitive.


Multiple Operating Mode

Basic Operating Mode

This series High Power DC Load provides four kinds of basic operating mode including CV (constant voltage), CC (constant current), CR (constant resistance), CP (constant power), to satisfy a wide range of test requirements.

Adjustable CV Loop Speed

This series electronic load supports CV loop response speed setting to FAST, NORMAL or SLOW to satisfy different test requirements.This function may avoid the inaccurate measurement or testing fail caused by the response speed mismatch between the load and the power supply, which is possible to improve test efficiency and reduce costs on the equipments, time and expenses.


Dynamic Load

This series electronic load can be switched quickly between different values in the same operating mode, including CC dynamic mode, CV dynamic mode, CR dynamic mode and CP dynamic mode, CC/CR high speed dynamic mode up to 50kHz. This function is suitable for transient test of power supply, test of battery protection characteristic and battery pulse charging etc. Dynamic mode test has continuous mode, pulse mode and toggle mode.


Maximum power point tracking (MPPT)

It can be applied to track the maximum power point of solar panels. Through the maximum power point tracking method, the maximum power point of the solar panel can be dynamically searched all the time, which can maximize the effectiveness of solar panels.


Battery Discharge Test

This series electronic load has battery discharge function, and can perform discharge test under CC, CR or CP mode. The DC load can set end volatge or time to stop loading correctly and make sure the battery is not damaged due to over discharge. The user can set stop conditions, whenever met any condition, the load will stop loading and counting automatically. During the test, users can observe battery's voltage, discharging time and already-discharged-capacity.


Options & Accessories

  • BNC cable (optional)Voltage / current output monitoring

  • USB communication cable(optional)For USB communication

  • RS-232 communication cable (standard)For RS-232 communication

  • Remote voltage sampling cable (standard)One red, one black

  • System bus communication cable (optional)Connect for master-slave communication

  • GPIB & LAN card & communication cable (optional)For communication between GPIB and LAN

  • Professional version upgrade software (optional)Upgrade version from advanced to professional

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Model Search

Model Voltage Current Power Voltage Resolution Current Resolution Voltage Accuracy Current Accuracy Size  
ELS200VDC39600W-7-30 200V 3000A 39.6kW 0.1mV3mA0.015%+0.015%F.S.0.04%+0.04%F.S.30U Inquiry
ELS200VDC44100W-7-30 200V 3000A 44.1kW 0.1mV3mA0.015%+0.015%F.S.0.04%+0.04%F.S.30U Inquiry
ELS200VDC52800W-7-36 200V 3000A 52.8kW 0.1mV4mA0.015%+0.015%F.S.0.04%+0.04%F.S.36U Inquiry
ELS200VDC58800W-7-36 200V 3000A 58.8kW 0.1mV4mA0.015%+0.015%F.S.0.04%+0.04%F.S.36U Inquiry
ELS200VDC66000W-7-42 200V 3000A 66kW 0.1mV5mA0.015%+0.015%F.S.0.04%+0.04%F.S.42U Inquiry
ELS200VDC73500W-7-42 200V 3000A 73.5kW 0.1mV5mA0.015%+0.015%F.S.0.04%+0.04%F.S.42U Inquiry
ELS600VDC39600W-7-30 600V 2880A 39.6kW 0.5mV3mA0.015%+0.015%F.S.0.04%+0.04%F.S.30U Inquiry
ELS600VDC44100W-7-30 600V 3000A 44.1kW 0.5mV3mA0.015%+0.015%F.S.0.04%+0.04%F.S.30U Inquiry
ELS600VDC52800W-7-36 600V 3000A 52.8kW 0.5mV4mA0.015%+0.015%F.S.0.04%+0.04%F.S.36U Inquiry
ELS600VDC58800W-7-36 600V 3000A 58.8kW 0.5mV4mA0.015%+0.015%F.S.0.04%+0.04%F.S.36U Inquiry
ELS600VDC66000W-7-42 600V 3000A 66kW 0.5mV5mA0.015%+0.015%F.S.0.04%+0.04%F.S.42U Inquiry
ELS600VDC73500W-7-42 600V 3000A 73.5kW 0.5mV5mA0.015%+0.015%F.S.0.04%+0.04%F.S.42U Inquiry
ELS1200VDC39600W-7-30 1200V 1440A 39.6kW 1mV1.2mA0.015%+0.015%F.S.0.04%+0.04%F.S.30U Inquiry
ELS1200VDC52800W-7-36 1200V 1920A 52.8kW 1mV1.6mA0.015%+0.015%F.S.0.04%+0.04%F.S.36U Inquiry
ELS1200VDC66000W-7-42 1200V 2400A 66kW 1mV2mA0.015%+0.015%F.S.0.04%+0.04%F.S.42U Inquiry
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