HT Italia HT77C

AC Clamp meter for leakage current from 10µA 60A

New model HT77C is clamp meters designed for an 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.

Clamp meters are provided, among others, with an integrated lowpass filter to eliminate harmonic components.


AC Current TRMS from 1µA to 60A
Maximum diameter for clamp 40mm
Low-pass filter 50 / 60Hz and 1kHz
Integrated white light illuminator
Automatic / manual range
Backlit LCD display
Bluetooth BLE 4.0
Auto Power OFF
AVG function
Data logger function via HTLeakage APP

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