No products in the cart.
Roll over image to zoom in
Littelfuse SE-330AU-08-00 NGR Monitor, Dual SC Fiber, IEC 61850
$4,923$5,907 (-17%)
Littelfuse SE-330AU-08-00 Neutral Grounding Resistor (NGR) monitor — 65–265 V AC / 85–275 V DC supply — earth-fault and NER supervision with IEC 61850 Dual SC fiber and USB. Genuine Littelfuse unit; fast delivery from Batam across Indonesia & Southeast Asia.
The Littelfuse SE-330AU-08-00 is a Neutral Grounding Resistor (NGR) monitor and earth-fault relay designed for resistance-grounded AC systems. With a wide supply range (65–265 V AC / 85–275 V DC), USB and IEC 61850 Dual SC fiber communications, and selectable RF trip thresholds, it continuously supervises neutral current, neutral-to-earth voltage and NER integrity. Ideal for low- and medium-voltage transformers, generators, substation protection and industrial distribution networks requiring IEC 61850 integration.
Key Features
- Continuous monitoring of neutral current, neutral-to-earth voltage and neutral-earthing resistor (NER) resistance.
- Fail-safe relay outputs: 2 Form A (normally open) and 2 Form C (changeover).
- Wide supply voltage: 65–265 V AC and 85–275 V DC for flexible installation.
- Communications: USB port plus IEC 61850 over Dual SC fiber for substation integration.
- Reset options via front-panel switch or remote N.O. contact; supports standard harmonic filtering.
- Selectable RF trip levels for systems up to 5 kV and for systems above 5 kV to suit varied installation voltages.
Technical Specifications
| Manufacturer | Littelfuse |
|---|---|
| Commercial Reference | SE-330AU-08-00 |
| Component | Neutral Grounding Resistor Monitor / Earth-fault relay |
| Supply Voltage | 65–265 V AC; 85–275 V DC |
| Communications | USB; IEC 61850 (Dual SC Fiber) |
| Relay Contacts | 2 Form A (NO) and 2 Form C (changeover) |
| Reset Type | Front-panel switch or remote N.O. contact |
| RF Trip Level | 20–2000 V (systems ≤ 5 kV); 100–10000 V (systems > 5 kV) |
| Monitoring Functions | Neutral current, neutral-to-earth voltage, neutral-to-earth resistance (NER) |
| Suitable System Voltage | Low- and medium-voltage resistance-grounded AC systems |
| Revision | New revision available; older revision discontinued |
Applications
NER supervision and earth-fault detection on transformers and generators; resistance-grounded distribution feeders; substation protection with IEC 61850 communication; industrial plants and utilities requiring continuous NER integrity checks.
We supply genuine Littelfuse protection relays through authorized channels. Based in Batam, Wulan Dari delivers across Indonesia and Southeast Asia with responsive lead times and competitive pricing. Contact us to request a quotation or discuss integration and delivery options.
Reviews
There are no reviews yet.