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Littelfuse SE-330AU-06-01 NGR Monitor Universal Dual RJ45 IEC 61850 NC
$4,923$5,907 (-17%)
Littelfuse SE-330AU-06-01 Neutral Grounding Resistor (NGR) monitor with universal 65–265 VAC / 85–275 VDC supply, IEC 61850/USB communications and configurable contacts. Genuine unit from Wulan Dari, available with fast delivery across Indonesia and Southeast Asia.
The Littelfuse SE-330AU-06-01 is a Neutral Grounding Resistor (NGR) monitor / earth-fault protection relay offering wide supply compatibility (65–265 VAC and 85–275 VDC). Designed for resistance-grounded AC systems, it continuously monitors neutral current, neutral-to-earth voltage and resistance to verify NER integrity and detect earth-faults on transformers and generators in industrial and utility power systems.
Key Features
- Configurable contact outputs: 1 Form A, 1 Form B and 2 Form C for flexible alarm schemes.
- Universal supply range (65–265 VAC / 85–275 VDC) for broad compatibility with existing systems.
- IEC 61850 and USB communication with dual RJ45 ports for networked protection and redundancy.
- Analog output and adjustable RF trip thresholds to integrate with SCADA and protection devices.
- Fail-safe operation, harmonic filtering, plus front-panel and remote reset options for reliable NER verification.
- Adjustable RF trip ranges: 20–2000 V for systems ≤5 kV; 100–10000 V for higher-voltage systems.
Technical Specifications
| Manufacturer | Littelfuse |
|---|---|
| Commercial Reference | SE-330AU-06-01 |
| Component | Neutral Grounding Resistor Monitor (NGR monitor) |
| Supply / Coil Voltage | 65–265 VAC; 85–275 VDC |
| Contact Configuration | 1 Form A, 1 Form B, 2 Form C |
| Communication | USB, IEC 61850 (dual RJ45) |
| Analog Output | Yes |
| RF Trip Levels | 20–2000 V (systems ≤5 kV); 100–10000 V (higher systems) |
| Functions | Neutral current, neutral-to-earth voltage and resistance monitoring; harmonic filtering; fail-safe monitoring |
Applications
Used for neutral-earthing resistor supervision on transformers and generator sets, earth-fault protection in resistance-grounded distribution networks, monitoring in utility substations and industrial power systems. Also used for switchgear monitoring, motor-generator sets and renewable energy plants.
Wulan Dari supplies genuine Littelfuse SE-330AU-06-01 units through authorized distribution channels from our Batam base. We offer fast delivery across Indonesia and Southeast Asia and competitive pricing. Contact us to request a quotation, availability check, datasheet or technical consultation.
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