All models support the four common regulation modes of constant voltage (CV), constant current (CC), constant power (CP) and constant resistance (CR). The FPGA based control circuit provides valuable testing features, such as a function generator with a table based function for the simulation of nonlinear internal resistances.

For remote control, there are by default two interface ports (1x analog, 1x USB) available on the rear of the chassis, which can also be extended by optional, pluggable and retrofittable, digital interface modules (dedicated slot). Alternatively to the interface modules slot, all models can be equipped with a three-way interface (option 3W), which then offers 1x GPIB/IEEE, 1x USB and 1x Analog on the rear side of the chassis. For the implementation of the LabView IDE Intepro offers ready-to-use components (VIs) to be used with the interface types USB, RS232, GPIB and Ethernet. Other IDEs and interfaces are supported by documentation about the communication protocol.

The models of the EL 9000 B series are equipped with thermal derating in order to avoid overheating when operating in the maximum power range. The lower the ambient temperature and the better the cooling, the higher the power that the load can take. The continuous intake power after derating is stable up to 50°C ambient temperature.

A special feature of the EL 9000 B DC Electronic Load is the familiar, FPGA based, digital function and arbitrary wave form generator. It enables controlling and running user-customizable load profiles and can generate sine, square, saw tooth and ramp functions in arbitrary order. With a freely programmable digital value table of 3276 effective points, which is embedded in the control circuit, the devices can reproduce non-linear internal resistances, such as those of batteries or LED chains.