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Protection Relays & Systems

Explore Protection Relays & Systems parts from multiple manufacturers, with model information, availability, datasheets and technical specifications for engineering and purchasing.

For parts that are not shown in the list, send the manufacturer part number, quantity or BOM to ICMENU. Our team can assist with availability checks and quotation support.

Photo Mfr. Part # Availability Price Quantity Datasheet Series Packaging Product Status Function Voltage - Supply Trip Range Delay Time Mounting Type Termination Style Features Operating Temperature
SE-330-23-00 Littelfuse Inc.

SE-330-23-00

GRND RES RELAY ETHERNET-DC SUP

Littelfuse Inc.

4,727
Datasheet SE-330 Bulk Active Ground Fault 48VDC 20 ~ 10000VAC 0.1 ~ 10s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330-21-00 Littelfuse Inc.

SE-330-21-00

GRND RES RELAY DEVICENET DC SUP

Littelfuse Inc.

2,084
Datasheet SE-330 Bulk Active Ground Fault 48VDC 20 ~ 10000VAC 0.1 ~ 10s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330-21-01 Littelfuse Inc.

SE-330-21-01

NGR MONITOR NC 48-VDC D-NET

Littelfuse Inc.

3,239
Datasheet SE-330 Bulk Active Ground Fault 48VDC 20 ~ 10000VAC 0.1 ~ 10s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330-23-01 Littelfuse Inc.

SE-330-23-01

NGR MONITOR NC 48-VDC ETHERNET

Littelfuse Inc.

4,943
Datasheet SE-330 Bulk Active Ground Fault 48VDC 20 ~ 10000VAC 0.1 ~ 10s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330AU-23-01 Littelfuse Inc.

SE-330AU-23-01

NEUTRAL-EARTHING-RES MON 48VDC E

Littelfuse Inc.

1,998
Datasheet SE-330AU Bulk Active Ground Fault 120 ~ 240VAC/DC 0.125 ~ 30A 0.1 ~ 0.5s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-135-03 Littelfuse Inc.

SE-135-03

GFGC MONITOR ETHERNET

Littelfuse Inc.

2,160
Datasheet SE-135 Bulk Active Ground Fault 120 ~ 240VAC/DC - 0.1 ~ 2.5s Panel Mount Screw Terminal CT Loop Monitoring, Harmonic Filtering, Manual Reset, Test Button -40°C ~ 60°C
SE-330AU-01-00 Littelfuse Inc.

SE-330AU-01-00

NEUTRAL-EARTHING-RESISTOR MON. D

Littelfuse Inc.

3,807
Datasheet SE-330AU Bulk Active Ground Fault 48VDC 0.125 ~ 30A 0.1 ~ 0.5s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330AU-01-01 Littelfuse Inc.

SE-330AU-01-01

NEUTRAL-EARTHING-RES MON DEVICEN

Littelfuse Inc.

3,558
Datasheet SE-330AU Bulk Active Ground Fault 48VDC 0.125 ~ 30A 0.1 ~ 0.5s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330HV-21-00 Littelfuse Inc.

SE-330HV-21-00

NGR MONITOR HV LVPS DEVICENET

Littelfuse Inc.

1,368
Datasheet SE-330HV Bulk Active Ground Fault 48VDC 20 ~ 10000VAC 0.1 ~ 10s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330HV-21-01 Littelfuse Inc.

SE-330HV-21-01

NGR MONITOR HV LVPS DEVICENET NC

Littelfuse Inc.

3,168
Datasheet SE-330HV Bulk Active Ground Fault 48VDC 20 ~ 10000VAC 0.1 ~ 10s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330HV-23-00 Littelfuse Inc.

SE-330HV-23-00

NGR MONITOR HV LVPS ETHERNET

Littelfuse Inc.

2,735
Datasheet SE-330HV Bulk Active Ground Fault 48VDC 20 ~ 10000VAC 0.1 ~ 10s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330HV-23-01 Littelfuse Inc.

SE-330HV-23-01

NGR MONITOR HV LVPS ETHERNET NC

Littelfuse Inc.

3,173
Datasheet SE-330HV Bulk Active Ground Fault 48VDC 20 ~ 10000VAC 0.1 ~ 10s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330-06-00 Littelfuse Inc.

SE-330-06-00

NGR MON UNIV E-NET DUAL RJ45 618

Littelfuse Inc.

2,658
Datasheet SE-330 Bulk Active Ground Fault 120/240VAC/DC 20 ~ 10000VAC 0.1 ~ 10s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330-06-01 Littelfuse Inc.

SE-330-06-01

NGR MON UNIV DUAL RJ45 61850 K4

Littelfuse Inc.

2,775
Datasheet SE-330 Bulk Active Ground Fault 120/240VAC/DC 20 ~ 10000VAC 0.1 ~ 10s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330-07-01 Littelfuse Inc.

SE-330-07-01

NGR MON UNIV SC FIBER RJ45 61850

Littelfuse Inc.

4,898
Datasheet SE-330 Bulk Active Ground Fault 120/240VAC/DC 20 ~ 10000VAC 0.1 ~ 10s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330-08-00 Littelfuse Inc.

SE-330-08-00

NGR MON UNIV DUAL SC FIBER 61850

Littelfuse Inc.

3,168
Datasheet SE-330 Bulk Active Ground Fault 120/240VAC/DC 20 ~ 10000VAC 0.1 ~ 10s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330-08-01 Littelfuse Inc.

SE-330-08-01

NGR MON UNIV DUAL SC FIBER 61850

Littelfuse Inc.

4,146
Datasheet SE-330 Bulk Active Ground Fault 120/240VAC/DC 20 ~ 10000VAC 0.1 ~ 10s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330HV-01-00 Littelfuse Inc.

SE-330HV-01-00

NGR MONITOR HV DEVICENET

Littelfuse Inc.

2,228
Datasheet SE-330HV Bulk Active Ground Fault 120 ~ 240VAC/DC 20 ~ 10000VAC 0.1 ~ 10s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330HV-01-01 Littelfuse Inc.

SE-330HV-01-01

NGR MONITOR HV DEVICENET NC K4

Littelfuse Inc.

1,701
Datasheet SE-330HV Bulk Active Ground Fault 120 ~ 240VAC/DC 20 ~ 10000VAC 0.1 ~ 10s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
SE-330HV-03-00 Littelfuse Inc.

SE-330HV-03-00

NGR MONITOR HV ETHERNET

Littelfuse Inc.

4,822
Datasheet SE-330HV Bulk Active Ground Fault 120 ~ 240VAC/DC 20 ~ 10000VAC 0.1 ~ 10s Panel Mount Screw Terminal Harmonic Filtering, Manual Reset -40°C ~ 60°C
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FAQ

Frequently Asked Questions

What are Protection Relays & Systems components used for?

Protection Relays & Systems components are used in a wide range of electronic equipment and systems. Their exact function depends on the device, circuit design and technical requirements of the application.

How do I choose the right Protection Relays & Systems part?

Compare the manufacturer part number, key specifications, package type, operating conditions, availability and datasheet information. For replacement projects, always verify the critical electrical and mechanical parameters before selecting an alternative.

Can ICMENU help source obsolete or hard-to-find Protection Relays & Systems parts?

Yes. Send us the required manufacturer part number, quantity or BOM. Our sourcing team can help check stock availability, lead time, alternative sourcing options and quotation details.

How can I request pricing and availability?

Submit the part number, manufacturer and required quantity through our RFQ form. ICMENU will review your request and provide available stock, pricing and sourcing information.

BOM & COMPONENT SOURCING

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