Neutral-Grounding-Resistor Monitor
- MFR:
- Littelfuse
- MFR #:
- SE-330-00-00
- UPC:
- 079458988321
- Item #:
- 765562
Availability
| Location | Available Qty |
|---|---|
| Available | Available to Order |
The SE-330 is an advanced ground-fault and neutral-groundingresistor monitoring relay that is compliant with Rule10-302 of the 2018 Canadian Electrical Code Part I (CE Code). It measures neutral current, neutral-to-ground voltage, and neutral-to-ground resistance. It provides continuous monitoring of the neutral-to-ground path to verify that the neutral-grounding resistor (NGR) is intact and that it has not been bypassed or shorted. An open NGR renders currentsensing ground-fault protection inoperative and could result in a false belief that the system is functioning properly. A shorted NGR results in higher-than-expected ground-fault current. The SE-330 can be used with low- and medium-voltage transformers and generators with low- or high-resistance grounding used in processing, manufacturing, chemical, pulp and paper, petroleum, and water-treatment facilities. For high-voltage applications, use the SE-330HV. For applications that require conformance to Australian standards, use the SE-330AU.
Manuals and Documentation
| Catalog Number | SE-330-00-00 |
| Manufacturer | Littelfuse |
| Brand | Littelfuse |
| Country of Origin | Mexico |
| Made in USA | No |
| Application | Low- and medium-voltage transformers and generators |
| Special Features | Continuous NGR monitoring |
| UPC | 079458988321 |
| GTIN | 00079458988321 |
| Item Type | Neutral-grounding resistor monitor |