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Littelfuse SE-330HV-26-00 NGR Monitor, 48VDC, Dual RJ45, IEC 61850, NO
$5,222$6,266 (-17%)
Littelfuse SE-330HV-26-00 NGR monitor — high-voltage neutral-grounding resistor supervision designed for 48 VDC control supplies. Provides continuous NGR and ground-fault detection with IEC 61850 dual-RJ45 communications. Genuine Littelfuse unit with fast delivery from Batam across Indonesia and Southeast Asia.
The Littelfuse SE-330HV-26-00 is a neutral-grounding resistor (NGR) monitor module for high-voltage distribution and protection applications. Built to operate with common 48 VDC control supplies and selectable wider DC ranges, the SE-330HV delivers continuous NGR and ground-fault monitoring, shorted-resistor detection, programmable outputs and IEC 61850 communications for integration with protection relays and SCADA. It offers redundant communications and local or remote reset options for flexible maintenance and diagnostics in substations and heavy industrial sites.
Key Features
- Continuous NGR monitoring with shorted-resistor detection and pulsing output capability.
- Adjustable pickup sensitivity from 2–100% in 1% increments for precise settings.
- Adjustable trip/time delay range 0.1–10 s to enable coordination.
- Analog 4–20 mA output plus programmable digital output contacts for interfacing.
- IEC 61850 and USB communications with dual RJ45 ports for redundancy and integration.
- Standard conformal coating and harmonic filtering to withstand harsh electrical environments.
Technical Specifications
| Manufacturer | Littelfuse |
|---|---|
| Commercial Reference | SE-330HV-26-00 |
| Component | Neutral Grounding Resistor Monitor (NGR monitor) |
| Supply Voltage | Wide DC supply options covering common 48 VDC systems (feed ranges reported: 28–52 VDC and 36–72 VDC) |
| Communication | IEC 61850, USB; dual RJ45 ports |
| Reset Options | Front-panel switch and remote N.O. contact reset |
| Outputs | Programmable output contacts, analog 4–20 mA, pulsing output (SE-330 family) |
| Adjustable Settings | Pickup 2–100% (1% steps); time delay 0.1–10 s |
| CT Compatibility | Universal CT compatibility |
| Protection & Build | Standard conformal coating; harmonic filtering |
Applications
Used for neutral-grounding resistor supervision in HV substations and switchyards; protection of transformers and generator neutrals in power plants; NGR monitoring in industrial distribution systems, mining and petrochemical electrical networks; integration with protection relays and SCADA/IEC 61850 systems.
Wulan Dari supplies genuine Littelfuse SE-330HV-26-00 modules through authorized distribution channels. Based in Batam, we deliver rapidly across Indonesia and Southeast Asia with competitive terms and local support. Contact us to request a quotation, check stock and obtain technical datasheets.
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