Smart Thump ST25-30

The SMART THUMP ST25-30 Portable Cable Fault Locating System provides safe, efficient and extremely easy-to-use solutions for quickly identifying, prelocating and pinpointing various types of cable faults for power cables.


The ST25-30 is developed to meet the requirements for typical medium-voltage distribution cable fault location markets from 11 to 35 kV system voltage.

Key Features

  • Delivers 1600 J at 12.5/25 kV
  • 30-kV DC high voltage proof/burn and displays insulation resistance
  • E-Tray automatic test sequence to proof test, prelocate and pinpoint
  • ARC reflection MV cable prelocation
  • ICE MV cable prelocation
  • Multi-shot technology for ARM*
  • Earth gradient LV fault locating and sheath fault locating
  • Interprets test results for user
  • 7.0 in HiBrite color display
  • IP53 rating for wet environments
  • Safety/grounding check
  • USB interface