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Earth 4.0

The EARTH 4.0 device is an earth fault indicator. It is designed to detect, locally indicate and remotely report earth fault currents in medium voltage distribution networks.

Earth Fault Indicator

Product Features

  • Indication of earth fault currents by LED and mechanical flag

  • Remote indication via relay contacts

  • Battery status indication and remote indication via relay contact

Your advantages

  • Clear earth fault indication via LED and mechanical flag
  • Connection to remote monitoring
  • Early warning of battery end-of-life

The Earth 4.0 is an earth fault indicator. It is designed to detect, locally indicate and remotely report earth fault currents in medium voltage distribution networks. A wired earth fault current transformer monitors the summation current of all three conductors. The electronics of the display unit evaluates the measurements. When the fault sensitivity threshold is exceeded, a red LED will start flashing and a mechanical flag becomes visible. In addition to that, the remote indication contacts are energised. A system-specific external signal lamp is optionally available.

 

Equipmant set:

  • 1 Display unit
  • 1 Summation current transformer


Technical Data

Technical Data

EARTH 4.0

Earth fault indicator

IE> Earth fault trip current

25, 50, 60 or 80 A (further currents on request)

tIE> Response delay

80 or 160 ms (further currents on request)

Accuracy

±10 %

Indication

  • 1 red LED 

  • 1 yellow LED (battery level), flash rate 2 s

  • Mechanical flag

Remote signal/communication

  • 2 relay contacts (change over) for earth fault indication

  • 1 relay contact (change over) for battery status indication

Remote contact

Permanent or momentary contact (1 s)
Contact capacity:
230 V AC/1 A/62.5 VA max.
220 V DC/1 A/60 W max.

Reset

  • By button

  • Remote contact

  • Automatic time reset: 1, 2, 4 or 8 h

  • Voltage restoration (220 — 240 V AC, ≥10 %)

Power supply

  • CT powered

  • Long-life lithium cell, Lifetime ≥20 years, Total flashing time 1,200 h

Housing

Polycarbonate, IP65 (surface mount housing)

Temperature range

-30 to +70 °C

 

Accessories

Current transformers

Summation current transformers

  • For earth fault indicator Earth 4.0, Earth Zero, Earth Zero Flag
  • For conductor Ø approximal 130 mm
  • 3 m connection cable

more...
49-6013-029

External Signal Lamps

External Signal Lamp

  • with 3 LEDs (red)
  • 10 m connection cable, for continuous contact, with battery

more...
49-0702-010
External Signal Lamp

  • with 3 LEDs (red)
  • 15 m connection cable, for continuous contact, with battery

more...
49-0702-015

Product

Note Item Number

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