KCG-X4L-001

GFI RELAY
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About this product
The KCG‑X4L‑001 is a ground fault interrupter relay designed for aircraft electrical generation systems. It continuously monitors generator windings for imbalance between phase and neutral currents, indicating insulation degradation or leakage to the airframe ground. Upon detecting a fault above the preset threshold, the relay isolates the affected generator to prevent damage to the electrical network and maintain safe operation.
KCG-X4L-001 Datasheet
UOM: EA
Stock Location: Dubai
Hazardous Item: Non-Hazardous Item
Life Limited Part: No
Certification: FAA 8130-3
8130/EASA Eligible: Yes
PRODUCT DESCRIPTION

KCG-X4L-001

  • Fault Detection Sensitivity: Monitors current differential with a trip threshold as low as 5 mA, ensuring early detection of insulation faults.

  • Rapid Trip Response: Operates within milliseconds of fault detection to isolate the generator and protect downstream systems.

  • Adjustable Set Points: Field‑programmable pickup and dropout levels allow alignment with various aircraft electrical bus configurations.

  • Robust Construction: Encased in a corrosion‑resistant housing with vibration‑damping mounts, suitable for harsh cockpit and avionics‑bay environments.

  • Protecting aircraft generator windings from ground faults and insulation failures.

  • Isolating a faulty generator to prevent electrical bus unbalance and maintain power system integrity.

  • Serving as an overvoltage and reverse‑current protection when integrated with generator control circuits.

  • Supporting maintenance diagnostics by providing discrete fault indicators to cockpit annunciators.

  • How quickly does the relay trip on a fault?

The design guarantees trip times under 10 ms upon detecting a current differential above the set threshold.

  • Can the trip sensitivity be adjusted?

Yes, technicians can set custom pickup and dropout levels during bench calibration to match specific electrical bus requirements.

  • What maintenance is required?

Periodic functional tests and continuity checks are recommended during scheduled routine maintenance to confirm pickup accuracy and contact reliability.




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