The MIG0603CLV2 is a generator for clamping voltage testing of varistors. It has circuits with four different source impedances and up to 15 different measurement ranges. The instrument is used to perform varistor clamping voltage tests on up to 1000 V varistor types. The test impulse is a 8/20µs current waveform up to 500A which is maintained over the entire load range. The peak output voltage and current are indicated on the display. The two BNC monitor outputs allow monitoring the voltage and current wave shapes on an oscilloscope.