MDL4U Series

MDL4U DC Electronic Loads

Model MDL4U001

MSRP $1,795 / 3 Yr Warranty
Where to Buy

The MDL4U Series is a multi-channel modular programmable electronic load system. Seven different modules of programmable DC loads ranging in power from 200 W to 600 W provide users the flexibility to test a wide range of power sources from multi-output DC power supplies to batteries, fuel cells, and photovoltaic arrays.

The mainframe has four slots that can be configured with any assortment of the modules up to 2400 W (up to 4800 W with mainframe extension). The high-performance electronic load modules of the MDL4U Series are capable of operating in constant current (CC), constant voltage (CV), constant resistance (CR), constant power (CW), and constant impedance (CZ) mode, which uses DSP technology to simulate non-linear loads and realistic loading behavior.

  • Modules offer wide voltage and current range, 0 to 500 V, 0 to 120 A
  • Support for up to 4 modules/8 channels or 8 modules/16 channels with mainframe extension
  • Transient mode up to 25 kHz
  • Synchronous Load on/off function
  • Adjustable slew rate in CC mode
  • Standard LAN, GPIB, USB, and RS232 interfaces with USBTMC/SCPI protocol support
  • Short circuit test simulates a short at the input
  • Built-in 16-bit resolution voltage and current measurement (0.1 mV, 0.01 mA)
  • Remote voltage sensing to compensate for the effect of voltage drop in wires
  • Operate identical modules in parallel mode for high current applications
  • OVP/OCP/OPP/OTP and reverse voltage protection
 
  Mainframe  Mainframe Extension Modules
Model MDL4U001 MDL4U002 MDL4U200 MDL4U252* MDL4U302* MDL4U305 MDL4U400 MDL4U505 MDL4U600
Power up to 2400 W total up to 2400 W total 200 W 250 W/50 W 300 W/300 W 300 W 400 W 500 W 600 W
Voltage n/a n/a 80 V 80 V 80 V 500 V 80 V 500 V 80 V
Current n/a n/a 40 A 20 A 45 A 20 A 60 A 30 A 120 A
Inputs n/a n/a 1 2 2 1 1 1 1
 
*The MDL4U252 and MDL4U302 are dual-channel modules. MDL4U252 users can allocate 250 W to either channel up to 300 W total (e.g. 50 W/250 W, 250 W/50 W, 150 W/150 W). MDL4U302 users can allocate 300 W to either channel up to 600 W total (e.g. 300 W/300 W).

MDL Series (non-4U) modules are not compatible with newer MDL4U Series mainframe model MDL4U001 or mainframe extension model MDL4U002. 

Model Power Voltage Current Inputs MSRP
MDL4U200 200 W 80 V 40 A 1 $1,310
MDL4U002 Up to 2400 W n/a n/a n/a $1,490
MDL4U001 Up to 2400 W n/a n/a n/a $1,795
MDL4U400 400 W 80 V 60 A 1 $1,850
MDL4U305 300 W 500 V 20 A 1 $2,050
MDL4U252 250 W/50 W 80 V 20 A 2 $2,260
MDL4U600 600 W 80 V 120 A 1 $2,890
MDL4U302 300 W/300 W 80 V 45 A 2 $3,070
MDL4U505 500 W 500 V 30 A 1 $3,350

Documentation

Software

Description Version Download
Operating Software w/ LabVIEW 2020 Run-Time Engine (Supports Windows(R) 7/8/10) 1.1.15 8500B_8600_MDL_Software.zip
Operating Software (Supports Windows(R) 7/8/10) 1.1.15 8500B_8600_MDL_Software_noLVRT.zip
LabVIEW 2020 Driver 1.0.5 LVMDL_series.zip
File Description
dc_electronic_load_application_note.pdf DC Electronic Loads Application Note