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Littelfuse SE-325 Neutral-Grounding-Resistor Monitor
Part Number # SE-325
SKU # 2375743
Littelfuse SE-325 Key Features
Littelfuse SE-325 Neutral-Grounding-Resistor Monitor
Brand: Littelfuse
Part Number: SE-325
Littelfuse Neutral-Grounding-Resistor Monitor, Series: SE-325, 120 VAC, 0.5/4 A, NO Contact Configuration, Surface Mounting, 0.1 to 2 s Trip Delay, 5.9 in H x 4.3 in W x 4 in D Dimensions
Additional Description: LTFS-SE-325 NEUTRAL-GROUNDING-RESISTOR MONITOR 120 VAC
Catalog Description: The SE-325 Neutral-Grounding-Resistor Monitor is used on resistance-grounded systems up to 25 kV to monitor the integrity of the neutral-to-ground path and to detect ground faults. It measures current and voltage in a transformer or generator neutral-to-ground connection and continuity of the neutral-grounding resistor (NGR). The SE-325 coordinates these three measurements to detect a loose connection, corrosion, ground fault, or NGR failure, and provides one alarm or trip output contact.
SE-325 Item Features
- Continuous NGR monitoring - detects resistor failure within seconds, reduces transient-overvoltage risk, removes risk of ground-fault-detection failure
- Ground-fault detection - main or backup protection to detect a ground-fault anywhere on-the monitored system
- Adjustable pickup (0.5 to 4 A) - select greatest sensitivity without false operation
- Selectable fail-safe or non-fail-safe contact operating mode
- Standard reset button
SE-325 Standards
CSA Certified|UL E340889, C-TickSKU #2375743Part Number #SE-325UNSPSC39122331UPC00079458988079