Our range of earth fault indicators and phase fault indicators with local and remote indication, for installation on medium voltage cables of electricity distribution networks. Our product range starts from simple EFI devices with basic functions, up to advanced earth and phase fault detectors, with SCADA remote signalling and remote external indicators.
All our fault indicators have split-type current transformer for easier installation and are self-supplied by internal 10-years-life lithium batteries for trouble free operation.
Our short-circuit earth fault indicators are designed to be used on MV networks cables, like underground cables, switch gears entry and exit points and transformer interconnection.


Earth fault indicator with basic functions: split-type current transformer, LED signalling, self-powered, automatic low-voltage and time reset.

Earth fault indicator with extended functions and enhanced local indication with red-lens LED lamp. Self-powered, programmable parameters.

Earth-and-phase fault indicator. Split-type current transformers, self-powered, programmable operating parameters.

Remote self-powered LED lamp external indicator. Large red-lens super-bright design, suitable for indoor and outdoor installation.

Earth fault indicator with extended functions and remote indicator driving capability. Self-powered, programmable operating parameters.

Earth fault indicator with extended functions, suitable for panel mount. Self-powered, programmable operating parameters.

Remote self-powered LED external indicator. Bolt-type robust design, suitable for anti-vandal applications.

Remote self-powered LED lamp external indicator with sun shading protection to ensure maximum visibility also in direct sunlight.

FEATURES |
EFI.02 |
EFI.05 |
EFI.06 |
EFI.07 |
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Earth fault trip current |
Single current value |
• |
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Up to 4 values (jumpers selectable) |
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• |
• |
• |
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Min. Fault Duration |
Single time value |
• |
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Up to 4 values (jumpers selectable) |
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• |
• |
• |
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Visual Fault Signalling |
Flashing ultra-bright single LED |
• |
• |
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• |
Flashing ultra bright LED LAMP with red dome |
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• |
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Power Supply |
Self-powered by internal lithium battery (10 years lifetime) |
• |
• |
• |
• |
Remote Fault Signalling (SCADA) |
1NO + 1NC relay momentary contact (500ms) |
(o) |
• |
• |
• |
1NO + 1NC relay permanent contact |
(o) |
(o) |
(o) |
(o) |
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Automatic RESET after time delay (values are customer defined) |
Single time value |
• |
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Up to 4 values (jumpers selectable) |
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• |
• |
• |
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Mains 230Vac RESET |
• |
• |
• |
• |
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Pushbutton (manual) RESET |
• |
• |
• |
• |
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Remote RESET by NO contact (SCADA) or remote pushbutton |
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• |
• |
• |
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| Installation | Wall mount | • | • | • | |
| Panel mount DIN 48 x 96 | • | ||||
Load current RESET |
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(o) |
(o) |
(o) |
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Connection for External Indicator |
(o) |
(o) |
(o) |
(o) |
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• = Disponibile (o) = Opzionale