The XR Series II from Magna-Power Electronics features 8-kW models at 2U (3.25 in) high. In addition, variable-speed, load-dependent fans are standard on the 6-kW and 8-kW models and low-speed fans on the 2-kW and 5-kW models. The series includes 70 models up to 1000 V dc and 375 A dc, ranging from 2 to 8 kW. Applications include automated test equipment, photovoltaic emulation, motor drive testing, semiconductor burn-in, battery charging, and various R&D activities. All units come with 37-pin isolated 0-10 V dc I/O for external control, RS-232, and IVI drivers for integration into nearly any programming environment.