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Littelfuse SE-330-06-00 NGR Monitor, Dual RJ45, IEC 61850
$4,923$5,907 (-17%)
Littelfuse SE-330-06-00 Neutral Grounding Resistor (NGR) Monitor — universal 65–265 V AC / 85–275 V DC supply with IEC 61850/Ethernet. Genuine Littelfuse device stocked in Batam; fast delivery across Indonesia & Southeast Asia.
The Littelfuse SE-330-06-00 is a Neutral Grounding Resistor (NGR) monitor and protection relay for resistance-grounded AC systems. Supplied 65–265 V AC / 85–275 V DC, it offers continuous NGR monitoring, ground-fault and shorted-NGR detection, programmable outputs and IEC 61850/Ethernet communications for integration with protection schemes in substations, switchgear and industrial power distribution.
Key Features
- Continuous monitoring of neutral grounding resistor with conformal-coated electronics.
- Detects shorted NGR and neutral ground-faults; reduces transient overvoltage risk.
- Adjustable pickup 2–100% (1% steps) and adjustable trip delay; GF trip time 0.1–10.5 s.
- Programmable outputs (2 Form A or 2 Form C); selectable fail-safe or non-fail-safe modes.
- IEC 61850 support, dual RJ45 Ethernet, USB configuration and 4–20 mA analog output.
- Universal CT compatibility and pulsing output (SE-330 models) for fast resistor-failure detection.
Technical Specifications
| Manufacturer | Littelfuse |
|---|---|
| Commercial Reference | SE-330-06-00 |
| Component | Neutral Grounding Resistor Monitor (NGR Monitor) |
| Supply Voltage | 65–265 V AC / 85–275 V DC (universal) |
| Contact Configuration | 2 Form A or 2 Form C (programmable) |
| Reset Options | Front-panel switch or remote N.O. contact |
| Operating Modes | Fail-safe or non-fail-safe selectable |
| Communications | IEC 61850, dual RJ45 Ethernet, USB |
| Analog Output | 4–20 mA |
| Adjustable Pickup | 2–100% (1% increments) |
| Ground-Fault Trip Time | 0.1–10.5 s (adjustable) |
| RF Trip Levels | 20–2000 V (systems ≤ 5 kV); 100–10000 V (systems > 5 kV) |
| RF Trip Time | 12 s |
| Coating | Conformal coating |
| CT Compatibility | Universal CT compatible |
| Special Output | Pulsing output (SE-330 models) |
Applications
Used for neutral resistor monitoring and protection in medium-voltage substations, power plants, industrial distribution boards, mining installations and utility feeders — provides main or backup detection of ground faults and resistor failures, and integrates with SCADA via IEC 61850.
We supply genuine Littelfuse SE-330-06-00 units through authorized distribution channels. Wulan Dari (Batam) stocks and ships across Indonesia and Southeast Asia with competitive pricing and fast delivery. Contact us to request a quotation or confirm stock and lead time for your project.
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