The B102 clamp is designed for measuring leakage current diverted towards the earth. It enables the fault to be located or anticipated without disconnecting the equipment linked. It is specially designed to detect low fault currents on power circuits. differential or leakage current, from 500 µA currents up to 400 A max 2 measurement ranges: 1 mV/mA or 1 mV/A used on single or multi-phase systems, with phased or unphased currents and on balanced or unbalanced circuits 110 mm jaw opening measurement of fault currents on 3-wire 3-phase circuits without a neutral using an artificial neutral system