Outdoor unit with exceptional all-terrain mobility: Lightweight, rainproof, optimised center of gravity, large pneumatic tires, adjustable handlebar, IP 43 rating, 119 kg (262 lbs)
Bright, sunlight readable 10.1” color display
Automatic operating mode selection and execution via software-controlled HV motor switches
To identify different types of faults: Insulation test up to 20 kV and 650 MΩ
DC test (DC hipot) up to 40 kV, with automatic voltage breakdown detection and ramp function
Built-in and functionally integrated Radar/TDR as well as ARM, ICE and DECAY prelocation methods
Surging (Thumping) at 8/16/32 kV with 2,000 J Optionally available: additional 4 kV stage with 1,100 J
High frequency burn mode with up to 40 kV DC and up to 850 mA, for improved fault conversion performance over conventional burn-down units with burn transformer


The STX40 is the most powerful and most modern port-able fault location system in the market. It is ideally suited for proof testing, analysing, prelocating and pinpointing of faults on extruded low voltage and medium voltage XLPE- and EPR-insulated cables. With its 40 kV DC source and a potent high frequency burner it is also highly capable and effective on PILC cables as well.

The STX40 is fully automated with motorised HV switches controlled by either the rotary knob or the industry-grade colour touchscreen