EK series earth fault and short circuit indicators – reliable fault detection in medium-voltage networks

The EK series earth fault and short circuit indicators are designed for use in radial networks and open ring networks with rigid or low-impedance resistive earthing. They enable reliable detection and indication of earth faults and short circuits in medium-voltage networks. Different device and sensor versions allow flexible adaptation to existing systems and retrofits.

• Use in radial and open ring networks with rigid or low-resistance grounding
• Separate LED indicator for ground fault and LED indicator for short circuit of all phases
• Flexible power supply via lithium battery, AC, DC, or combined supply
• Up to three relays for remote signaling of ground fault, short circuit, and battery status
• Optional sensor connection via fiber optic cable (potential-free) or copper cable