Earth fault indicator with battery-free power supply

The TERRA-C earth fault indicator is designed for use in radial networks and open ring networks with rigid or low-impedance resistive earthing. Earth faults are indicated by an LED and a bistable flip-flop display, which means that the fault condition remains clearly visible even without a power supply. Power is supplied by supercapacitors, which are charged via mains voltage and/or a power supply converter. Separable sensors enable easy retrofitting and flexible installation.

• Earth fault detection with LED and bistable folding indicator
• Power supply via supercapacitors – no battery required
• Clear error display even when the power supply is discharged
• Split earth fault sensor type SE and optional power supply converter
• Suitable for beam and open ring nets