
Download Datasheet

- SE-330 (PGR-5330) Resistance Grounded Relay
- Littelfuse-Relays-SE330.pdf
- (420,165 bytes)
- Last Uploaded: February 09, 2012
Series: PGR-5330
Resistance Grounded Relay
The PGR-5330 is an advanced ground-fault and resistor monitoring relay. The PGR-5330 measures neutral current, neutral-to-ground voltage and neutral resistance. It provides continuous monitoring of the neutral-to-ground path to ensure the neutral-grounding resistor (NGR) is intact. This is of utmost importance on resistance-grounded systems because NGR failure renders current-sensing ground-fault protection inoperative.
Electrical Characteristics
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