Directional earth-fault and short-circuit indicator – Cabletroll 3500
The Cabletroll 3500 fault indicator consists of:
- three short-circuit sensors for detecting short circuits and earth faults;
- main unit: includes the power supply and microcontroller-based indication unit, with LEDs for local indication and a relay for remote indication.
-programmable-earth-fault-and-short-circuit-indicator-opto-fe-3.0


