HT4004N model is a standard transducer clamp for DC current measurement 10-100A / 1V ranges to perform current measurements on electrical installations. The model is able to clamp cable with maximum diameter of 32mm and shoulder stand be used in connection with instruments as for example network analyzer, PV meters or high accuracy digital multimeters. This clamp has been designed in compliance with IEC / EN61010-1and perform current measurement on installations of surge voltage with CAT III 300V to ground.