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Littelfuse
SE-325D LITTELFUSE NGR MONITOR SUPPLY: 120 VAC/VDC

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Description: Littelfuse® Neutral Grounding Resistor Monitor Relay, Continuous Trailing Cable Protection, Series: SE-325, 120 VAC/VDC, NO (1 Form A) Output Contact, Surface Mount, 5.9 in H x 4.3 in W x 4 in D

Manufacturer PN: SE-325D

UPC:  07945898808

Kendall Electric Inc PN: 4600217

Invoice Description:

SE-325D LITTELFUSE NGR MONITOR SUPPLY: 120 VAC/VDC


SPEC SHEET

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Littelfuse® SE-325D Continuous Trailing Cable Protection Neutral Grounding Resistor Monitor Relay, 120 VAC/VDC, NO (1 Form A) Output Contact, Surface Mount

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Note: Lead times are estimates only

 
 

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.
Littelfuse® Neutral Grounding Resistor Monitor Relay, Continuous Trailing Cable Protection, Series: SE-325, 120 VAC/VDC, NO (1 Form A) Output Contact, Surface Mount, 5.9 in H x 4.3 in W x 4 in D

Specifications

 Application Mining Applications
 Brand Name Littelfuse®
 Dimensions 5.9 in H x 4.3 in W x 4 in D
 Manufacturer Part Number SE-325D
 Mounting Type Surface
 Series SE-325
 Specifications NO (1 Form A) Output Contact
 Standards/Approvals cCSAus File No. LR53428|UL File No. E340889|C-Tick N11659|FCC Approved
 Type Continuous Trailing Cable Protection
 Voltage Rating 120 VAC/VDC

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
▪ 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
 
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