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Rexgear_Itech IT-M3300 Series Regenerative DC Electronic Load
Rexgear_Itech IT-M3300 Series Regenerative DC Electronic Load
Rexgear_Itech IT-M3300 Series Regenerative DC Electronic Load
Rexgear_Itech IT-M3300 Series Regenerative DC Electronic Load
Rexgear_Itech IT-M3300 Series Regenerative DC Electronic Load
Rexgear_Itech IT-M3300 Series Regenerative DC Electronic Load
Rexgear_Itech IT-M3300 Series Regenerative DC Electronic Load
Rexgear_Itech IT-M3300 Series Regenerative DC Electronic Load
Rexgear_Itech IT-M3300 Series Regenerative DC Electronic Load
Rexgear_Itech IT-M3300 Series Regenerative DC Electronic Load
Rexgear_Itech IT-M3300 Series Regenerative DC Electronic Load
Rexgear_Itech IT-M3300 Series Regenerative DC Electronic Load
ITECH IT-M3300 Series Regenerative DC Electronic Load

ITECH IT-M3300 Series Regenerative DC Electronic Load

IT-M3300 regenerative DC electronic load can not only simulate various load characteristics, but also can feed back electrical energy to the local grid instead of heat. With high power density design, it can provide up to 800W power absorption with tiny body of only 1U half-rack. Its flexible modular architecture design can meet the test requirement of customers with different current and power. At the same time, it has high-precision output and measurement, and has made a number of safety designs for the test. It is suitable for test applications such as various types of battery discharge, multi-channel power supply, and semiconductor aging.


  • 1U Half-rack, high power density
  • Battery discharge test
  • High efficient power regeneration
  • 8 operating modes:CC/CV/CP/CR/CV+CC/CC+CR/CV+CR/CV+CC+CP+CR
  • Independent control of multi-channels, implement synchronization or proportional tracking
  • Parallel connection, up to 16 units
  • High-speed measurement, keep 10 times / s update rate even connecting 16 stand-alone units
  • Adjustable current rise/fall time
  • List programming
  • Various protection such as OCP/UCP/OVP/UVP/OPP, over heat protection, grid fault protection and fault storage, foldback, power-off protection, sense abnormal protection
  • Temperature measurement function, over temperature protection
  • Automatic detection of power grid state to realize reliable grid connection
  • Precharge function to prevent overshoot of DC loading current
  • Anti-reverse protection function by optional IT-E118
  • Five optional interfaces, supporting RS232, CAN, LAN, GPIB, USB_TMC, USB_VCP, RS485, analog and IO communication


Burn-in testing solution for multi-channel power supply module

LED driver, DC-DC, AC-DC modules

Semi-conductor power IC, relay, and wire harness burn-in tests

Power regulator, smart electronic switch IPS, automotive central control box

Working condition simulation, verification of electrical performance of products

Mobile phone main board, adapters, small DC generator test

Discharging test of various types of batteries

Battery capacity, screening of disqualified batteries

1U Half Rack Mini Size

IT-M3300 is only 1U half-rack, but the power output is up to 800W. Besides high power density, it also has high resolution, high accuracy and high stability, etc. The output voltage is up to 600V and the output current is up to 30A. All series containing 12 models with ultra-wide range output design, can be widely used in various applications.

Model Options

IT-M3312 60V30A200W
IT-M3322 60V30A400W
IT-M3332 60V30A800W
IT-M3313 150V12A200W
IT-M3323 150V12A400W
IT-M3333 150V12A800W
IT-M3314 300V 6A 200W
IT-M3324 300V 6A 400W
IT-M3334 300V 6A 800W
IT-M3315 600V3A 200W
IT-M3325 600V3A 400W
IT-M3335 600V3A 800W

Electricity Accumulation, High Energy Saving

IT-M3300 uses power electronic conversion technology to recycle the output energy of the power supply under test under the premise of completing the test power experiment. Through the internal high-speed voltage and current sampling, the user can directly view the current total amount of feedback on the instrument panel. The IT-M3300 is equipped with temperature measurement function as standard. With an optional temperature sensor, you can also directly view the external measurement temperature.

Parallel Function

IT-M3300 supports paralleling multiple units of same model to achieve higher current and power. Users may parallel units in master-slave operation according to different required current values. Up to 16 units can be in parallel. IT-M3300 can still have the same high-speed measurement capability as single unit after running in parallel with multiple units.

Modular Design, Flexible Combination

The flexible modular design makes it simple for IT-M3300 to stack directly, no need to purchase any accessories. The user may use IT-E154 optional rack mount kit to install one unit or more units into 19” rack case.

Multi-Channel Independent Control, Maximum 256 Channels

IT-M3300 series is provided with independent multi-channel design. The channel sequence will be displayed when it combines to be a multi-channel electronic load system. The user can control each unit independently by GUI software when connecting the communication interface of one unit with PC. Each channel can be operated separately. IT-M3300 series supports maximum 16*16 channels. One 37U rack contains 64 channels. The user may test DUT with different power ranges by parallel connection, making tests more flexible and device usage more efficient.

High Energy Regeneration Efficiency

IT-M3300 has energy recovery function, which can feedback power back to local AC grid. The regeneration efficiency can be up to 90%, which greatly reduces the user's electricity cost. It also avoids the use of cooling systems and reduces noise.

~6307 kWh can be deducted from your electricity and cooling bill using 1pc IT-M3300 (800W) for 1 year

Battery Simulation Function

Battery charger will monitor the voltage of battery after battery charger is connected to battery, If the connection is correct, the battery charger comes into charge state. In Battery Sim mode, users can set analog voltage of battery, and can output low current, to simulate battery state. It can satisfy working demand of battery charger, which can be applied to discharging test of battery charger.

Optional BSS2000 Battery Simulation Software

Battery Discharge Test

The battery discharge function of IT-M3300 allows you to proceed the discharge test of battery under CC mode. Cut off conditions can be set, including voltage, capacity and discharge time. When any of the three conditions are met, it will automatically stop the test. The battery voltage, discharge time and discharged capacity can be monitored during the test.

Full Protection

IT-M3300 has OCP / UCP / OVP / UVP / OPP / over heat protection, power grid fault protection and fault storage function, power off protection function and Sense function. The power grid state automatic detection function helps to shut down the instrument when the power is suddenly cut off, so as to realize reliable grid connection function and island protection function. The precharge function prevents current overshoot. Equipped with the optional anti-reverse connection module, the anti-reverse connection protection function can be realized to effectively suppress the inrush current.

Multiple Operation Modes

IT-M3300 provides CC/CV/CP/CR four basic operation mode.

IT-M3300 also provides CC+CR/CV+CR/CV+CC/CC+CV+CP+CR four combined operation mode, which can be applied to the test requirements of various occasions.

CC+CR mode can be applied to OBC feature test of voltage limit, feature test of current limit, constant voltage accuracy test, constant current accuracy test, to prevent over current protection.

CV+CR mode can be applied to simulate LED light, test LED power, LED current ripple parameters.

CV+CC mode can be applied to load simulate battery, test charging station or car charger, the maximum loading current is limited, when the CV is working.

CV+CC+CP+CR mode can be applied to test lithium-ion battery charger, to gain complete V-I charging curve. In addition, when protection circuit of DUT is damaged, it can auto switch to avoid damage.

Optional Accessories

IT-M3600 also comes with optional USB, GPIB, LAN, RS-232, and an analog interface to support remote control and ATE system quick integration. For installation, ITECH provides with a specially designed rack mount kit IT-E154A/B/C. User can select different model according to different mounting patterns.

IT-E1205 GPIB interface
IT-E1206 USB/LAN interface
IT-E1207 RS-232/CAN interface
IT-E1208 External analog/RS485 interface
IT-E1209 USB interface
IT-E118 Anti-reverse connection module
IT-E1203 Temperature sensor
IT-E154A/B/C Rack mount kit

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