Littelfuse SE-325S Neutral Grounding Resistor Monitor Relay
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Littelfuse SE-325S Neutral Grounding Resistor Monitor Relay
Littelfuse SE-325S Neutral Grounding Resistor Monitor Relay
Part #:SE-325S
SKU #: 2373411
Key Features
Part #:SE-325S
SKU #: 2373411
Brand: Littelfuse
Dimensions: 5.9 in H x 4.3 in W x 4 in D
Series: SE-325
Specifications: NO (1 Form A) Output Contact
Type: Continuous Trailing Cable Protection
Voltage Rating: 120 VAC
- 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
- Adjustable time delay (0.1 to 2 s)- adjustable trip delay allows system coordination
- Selectable fail safe or non-fail safe operating modes allows connection to shunt or undervoltage breaker coil or alarm system
- Extended resistor trip time
Littelfuse SE-325S Neutral Grounding Resistor Monitor Relay
Littelfuse Neutral Grounding Resistor Monitor Relay, Continuous Trailing Cable Protection, Series: SE-325, 120 VAC, NO (1 Form A) Output Contact, Surface Mount, 5.9 in H x 4.3 in W x 4 in D
Additional Description: LTFS-SE-325S NGR MONITOR EXT RES TRIP TIME
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.