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Littelfuse SE-330HV-06-01 NGR Monitor Universal Dual RJ45 IEC 61850 NC
$4,971$5,965 (-17%)
Littelfuse SE-330HV-06-01 Neutral Grounding Resistor (NGR) Monitor — universal supply 65–265 VAC / 85–275 VDC. Continuous NGR and ground-fault detection with IEC 61850 communication. Genuine Littelfuse product from Batam with fast delivery across Indonesia and Southeast Asia.
The Littelfuse SE-330HV-06-01 is a Neutral Grounding Resistor (NGR) Monitor designed for continuous protection of resistance-grounded AC systems. With a universal supply of 65–265 VAC / 85–275 VDC, adjustable pickup (2–100%) and adjustable time delay (0.1–10 s), the SE-330HV detects shorted resistors, ground faults and resistor failures. Built for utility and industrial motor/transformer protection, it supports modern protection schemes via dual RJ45 ports and IEC 61850 communications.
Key Features
- Continuous NGR monitoring and fast detection of shorted or failed neutral grounding resistors.
- Adjustable pickup from 2–100% in 1% steps for precise sensitivity setting to avoid nuisance trips.
- Programmable time delay (0.1–10 s) for coordination with upstream protection and system stability.
- Universal CT compatibility plus analog 4–20 mA output for integration with SCADA and DCS.
- Communications: dual RJ45 Ethernet ports and IEC 61850 support for modern substation control and diagnostics.
- Flexible outputs and operating modes, including pulsing output function on SE-330 models for advanced detection schemes.
Technical Specifications
| Manufacturer | Littelfuse |
|---|---|
| Commercial Reference | SE-330HV-06-01 |
| Component | Neutral Grounding Resistor Monitor (NGR Monitor) |
| Supply Voltage | 65–265 VAC / 85–275 VDC (universal) |
| Pickup Range | Adjustable 2–100% |
| Time Delay | Adjustable 0.1–10 s |
| Analog Output | 4–20 mA |
| Communications | Dual RJ45 ports, IEC 61850 support |
| CT Compatibility | Universal current transformer compatibility |
| Additional Functions | Continuous NGR monitoring, shorted NGR detection, ground-fault detection, pulsing output (SE-330) |
Applications
Protection of generator and transformer neutrals, distribution network neutral monitoring, industrial plant and mining earthing systems, and backup monitoring in utility substations.
We supply genuine Littelfuse SE-330HV-06-01 units through authorized channels. Based in Batam, Indonesia, Wulan Dari delivers quickly across Indonesia and Southeast Asia. Contact us for availability and request a quotation for fast, competitive supply and support.
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