HT Instruments 77C Stroomtang

The innovative leakage current clamp HT77C is particularly suitable for accurate measurements of small currents in the µA and mA range. This leakage current clamp is primarily used for preventive maintenance and fault location when the RCD (RCCB) repeatedly trips unexpectedly, for example, due to insulation faults or stray leakage currents. The HT77C is also suitable for measuring protective conductor and differential currents in electrical devices (DGUV Regulation 3).

Additionally, the HT77C features a switchable low-pass filter to eliminate harmonic components during measurements, providing the user with a wide range of applications. The clamp jaws are fully shielded to minimize external electromagnetic interference and achieve accurate results even in the µA range.

Functions:

• AC TRMS current (TRM from 0.001 mA to 60 A)
• DATA HOLD, MAX and MIN functions
• Low-pass filter for detecting harmonics
• Measurement point illumination with white LED
• Display with backlight
• Data logger function in conjunction with the HTLeakage app
• Bluetooth connection for data transfer to mobile devices via the HTLeakage app
• Measurement of leakage currents in electrical installations according to VDE 0413-13 (EN 61557-13)
• Measurement of protective conductor and differential currents in electrical devices according to the measuring device specifications of VDE 0413-16 (EN 61557-16).