HT Italia HT77N AC Clampmeter for Measuring Leakage Currents 10µA to 100A

The HT77N clampmeters is designed for accurate measurement of very low values of AC currents and, therefore, they are mainly employed in detecting and and defining leakage currents in private and industrial electric systems, which typically cause RCDs’ tripping. The 50/60Hz integrated low pass filter permits the cut off of high order harmonics. Some alarm threshold are selectable of the HT77N meter with buzzer sound during measurements and sophisticated automatic backlight sensor is provided to perform correct test in dark environments. The meter is compliance to IEC/ EN 61010-1 safety standard in CAT III 300V.


  • True RMS current up to 100A.
  • 50/60Hz Low Pass filter.
  • Threshold alarm on measurements.
  • Data Hold, Auto Hold, Peak Hold.
  • Manual and Auto ranging.
  • Automatic backlight sensor.
  • Backlight.
  • Auto Power Off.
  • Maximum conductor size 40mm.

 Included Accessories

  • Soft carrying case.
  • Battery.
  • User’s manual.


HT 4020 Data SheetHT 77N Data Sheet

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    SKU: HT Italia HT77N Categories: , Tags: ,