SEL838 Series Programmable DC Electronic Load

The new SEL8 series programmable DC electronic load is a new generation product designed by Saluki Technology. Incorporating high-performance chips, the SEL8 series delivers high speed and high accuracy with a resolution of 1mV and 1mA (basic accuracy is 0.03% and basic current rise speed is 2.5 A/μs).

SEL8 series have wide application from production lines for cell phone chargers, cell phone batteries, electronic vehicle batteries, switching power supplies, linear power supplies, and LED drivers, to research institute, automotive electronic, aeronautic and astronautic, maritime, solar cell and fuel cell etc. test and measurement applications.

** Customization available upon request **

** Standard Lead Time: within 4 weeks **

Key Features

50 kW high rated power

Six high speed operation modes: CC, CR, CV, CW, CC+CV, CR+CV

Over current, over voltage, over power, over heating and polarity reversal protection

Battery test and short-circuit test functions

Available of dynamic testing and rising edge and falling edge setting

High-luminance vacuum fluorescent display (VFD) screen with two line, four channel display

Intelligent fan system will automatically activate based on changing ambient temperatures

Soft-start time setting, activating the power supply in accordance with the set voltage value

Support external trigger on either input or output

External current waveform monitor terminal output terminal

Support remote voltage compensation and multi-data storage

Power-on-self-test, software calibration and standard rack mountable, available with RS232/RS485/USB serial interfaces


SEL838: 0-500A/0-150V/50KW

SEL838B: 0-240A/0-500V/50KW

Operating Modes


Test Resolution

1mV / 1mA

Basic accuracy


Available Interface


Battery Measurement

Battery input: 0.1-150V,  Max. measurement: capacity=999AH,  Resolution=0.1mA,  Time range=1S-16H

Dynamic Measurement

Transition list: 0-25kHz; 5A/us; T1&T2: 60us-999s;  Accuracy: ±15% offset+10% FS

CC Soft-startup Time

1 ms, 2 ms, 5ms, 10ms, 20 ms, 50 ms, 100 ms, 200 ms, 500 ms, 1000 ms;   Accuracy: ±15% offset+10% FS

(Note: see more detail information in the ‘Resource’ – ‘Datasheet’)

Main Machine

Module No Item Description
SEL838 DC Electronic Load Programmable, 50kW, 0-500A, 0-150V
SEL838B DC Electronic Load Programmable, 50kW, 0-240A, 0-500V


Module No Item Description
M131 RS232 communication cable Connect the electronic load with the computer for communication
M132 RS485 communication cable Connect the electronic load with the computer for communication
M133 USB communication cable Connect the electronic load with the computer for communication
Saluki Technology