The Chroma 63203A-600-210 high power DC electronic loads are designed for testing a wide range of products including AC/DC and server power supplies, DC/DC converters, EV batteries, automotive charging stations, and other power electronics components. They have unique user defined waveform (UDW) capability and external analog modulating input for simulating realworld, custom waveforms. Each model of the Chroma 63200A series has 3 power ranges, they can precisely measure the voltage and current in real time and provides short circuit simulation to effectively solve the application demands for power and automated testing. In addition to common constant voltage, current, resistance, or power modes of conventional loads, the Chroma 63203A-600-210 accepts digital data from DAQ cards or analog data from function generators to allow for complex waveforms to be created. Another distinct feature is the dynamic auto-frequency sweep function, which enables detecting a UUTs worst case output deviation across a wide range of current frequencies. The Chroma 63203A-600-210 DC loads also have overcurrent, overpower, and over temperature protections as well as over voltage and polarity reverse alarms to enhance product reliability. These DC loads are reliable products for engineering testing and automated test system's integration