SE-330 Series - Neutral-Grounding-Resistor Monitor

Littelfuse SE-330 New Revision
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The SE-330 is an advanced ground-fault and neutral-grounding resistor monitoring relay that is compliant with Rule10-302 of the 2018 Canadian Electrical Code Part I (CE Code). It measures neutral current, neutral-to-ground voltage, and neutral-to-ground resistance. It provides continuous monitoring of the neutral-to-ground path to verify that the neutral-grounding resistor (NGR) is intact and that it has not been bypassed or shorted. An open NGR renders current sensing ground-fault protection inoperative and could result in a false belief that the system is functioning properly. A shorted NGR results in higher-than-expected ground-fault current. The SE-330 can be used with low- and medium-voltage transformers and generators with low- or high-resistance grounding used in processing, manufacturing, chemical, pulp and paper, petroleum, and water-treatment facilities. For high-voltage applications, use the SE-330HV. For applications that require conformance to Australian standard AS/NZS 2081.3:2002, use the SE-330AU.

Access specifications, certifications, check availability and order parts below

Catalog #Supply
Voltage
(VAC)
Supply
Voltage
(VDC)
Relay
Contacts
ApprovalsAnalog Output (mA)CommsNew Revision AvailabilityOld Revision AvailabilityIEEE Device NumbersRelay
Contact
Operating
Mode
Compare
SE-330-00-0065-26585-275Two Form A, Two Form CCSA, UL, CE, C-Tick4-20USBNowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-00-0165-26585-275One Form A, One Form B, Two Form CCSA, UL, CE, C-Tick4-20USBNowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-01-0065-26585-275Two Form A, Two Form CCSA, UL, CE, C-Tick4-20USB, DeviceNetNowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-01-0165-26585-275One Form A, One Form B, Two Form CCSA, UL, CE, C-Tick4-20USB, DeviceNetNowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-02-0065-26585-275Two Form A, Two Form CCSA, UL4-20RS-232, ProfibusNot availableAvailable until stock depleted50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-02-0165-26585-275One Form A, One Form B, Two Form CCSA, UL4-20RS-232, ProfibusNot availableAvailable until stock depleted50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-03-0065-26585-275Two Form A, Two Form CCSA, UL, CE, C-Tick4-20USB, Ethernet (Dual RJ45)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-03-0165-26585-275One Form A, One Form B, Two Form CCSA, UL, CE, C-Tick4-20USB, Ethernet (Dual RJ45)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-04-0065-26585-275Two Form A, Two Form CCSA, UL, CE, C-Tick4-20USB, Ethernet (RJ45 and SC Fiber)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-04-0165-26585-275One Form A, One Form B, Two Form CCSA, UL, CE, C-Tick4-20USB, Ethernet (RJ45 and SC Fiber)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-05-0065-26585-275Two Form A, Two Form CCSA, UL, CE, C-Tick4-20USB, Ethernet (Dual SC Fiber)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-05-0165-26585-275One Form A, One Form B, Two Form CCSA, UL, CE, C-Tick4-20USB, Ethernet (Dual SC Fiber)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-06-0065-26585-275Two Form A, Two Form CCSA, UL, CE, C-Tick4-20USB, IEC61850 (Dual RJ45)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-06-0165-26585-275One Form A, One Form B, Two Form CCSA, UL, CE, C-Tick4-20USB, IEC61850 (Dual RJ45)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-07-0065-26585-275Two Form A, Two Form CCSA, UL, CE, C-Tick4-20USB, IEC61850 (RJ45 and SC Fiber)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-07-0165-26585-275One Form A, One Form B, Two Form CCSA, UL, CE, C-Tick4-20USB, IEC61850 (RJ45 and SC Fiber)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-08-0065-26585-275Two Form A, Two Form CCSA, UL, CE, C-Tick4-20USB, IEC61850 (Dual SC Fiber)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-08-0165-26585-275One Form A, One Form B, Two Form CCSA, UL, CE, C-Tick4-20USB, IEC61850 (Dual SC Fiber)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-20-0028-5236-72Two Form A, Two Form CCSA, UL, CE, C-Tick4-20USBNowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-20-0128-5236-72One Form A, One Form B, Two Form CCSA, UL, CE, C-Tick4-20USBNowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-21-0028-5236-72Two Form A, Two Form CCSA, UL, CE, C-Tick4-20USB, DeviceNetNowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-21-0128-5236-72One Form A, One Form B, Two Form CCSA, UL, CE, C-Tick4-20USB, DeviceNetNowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-22-0028-5236-72Two Form A, Two Form CCSA, UL4-20RS-232, ProfibusNot availableAvailable until stock depleted50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-22-0128-5236-72One Form A, One Form B, Two Form CCSA, UL4-20RS-232, ProfibusNot availableAvailable until stock depleted50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-23-0028-5236-72Two Form A, Two Form CCSA, UL, CE, C-Tick4-20USB, Ethernet (Dual RJ45)NowNo longer available50G
50N
51G
51N
59N
87
Fail-safe
Non Fail-safe
SE-330-23-0128-5236-72One Form A, One Form B, Two Form CCSA, UL, CE, C-Tick4-20USB, Ethernet (Dual RJ45)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-24-0028-5236-72Two Form A, Two Form CCSA, UL, CE, C-Tick4-20USB, Ethernet (RJ45 and SC Fiber)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-24-0128-5236-72One Form A, One Form B, Two Form CCSA, UL, CE, C-Tick4-20USB, Ethernet (RJ45 and SC Fiber)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-25-0028-5236-72Two Form A, Two Form CCSA, UL, CE, C-Tick4-20USB, Ethernet (Dual SC Fiber)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-25-0128-5236-72One Form A, One Form B, Two Form CCSA, UL, CE, C-Tick4-20USB, Ethernet (Dual SC Fiber)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-26-0028-5236-72Two Form A, Two Form CCSA, UL, CE, C-Tick4-20USB, IEC61850 (Dual RJ45)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-26-0128-5236-72One Form A, One Form B, Two Form CCSA, UL, CE, C-Tick4-20USB, IEC61850 (Dual RJ45)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-27-0028-5236-72Two Form A, Two Form CCSA, UL, CE, C-Tick4-20USB, IEC61850 (RJ45 and SC Fiber)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-27-0128-5236-72One Form A, One Form B, Two Form CCSA, UL, CE, C-Tick4-20USB, IEC61850 (RJ45 and SC Fiber)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-28-0028-5236-72Two Form A, Two Form CCSA, UL, CE, C-Tick4-20USB, IEC61850 (Dual SC Fiber)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe
SE-330-28-0128-5236-72One Form A, One Form B, Two Form CCSA, UL, CE, C-Tick4-20USB, IEC61850 (Dual SC Fiber)NowNo longer available50G
50N
51G
51N
59N
86
Fail-safe
Non Fail-safe

pdf icon SE-330 Datasheet - New Revision

The SE-330 is an advanced ground-fault and neutral-grounding- resistor monitoring relay. It measures neutral current, neutral-to- ground voltage, and neutral-to-ground resistance.

pdf icon SE-330 Manual - New Revision

A high-resistance-grounded system uses a neutralgrounding resistor (NGR) with a low let-through current to limit ground-fault current. This is an improvement over low-resistance- or solidly grounded systems because, in those systems, a ground-fault flash hazard exists and a ground fault can result in substantial point-of-fault damage.

pdf icon SE-330 Manual - Previous Revision

A high-resistance-grounded system uses a neutral- grounding resistor (NGR) with a low let-through current to limit ground-fault current.

pdf icon SE-330 Datasheet - Previous Revision

The SE-330 is an advanced ground-fault and neutral-grounding- resistor monitoring relay. It measures neutral current, neutral-to- ground voltage, and neutral-to-ground resistance.

SE-330 One Access Point

SE-330 Two Access Points

SE-330 EthernetIP Electronic Data Sheet (.eds) - New Revision

SE-330 EthernetIP Electronic Data Sheet (.eds) - Previous Revision

SE-330 DeviceNet Electronic Data Sheet (.eds) New Version

SE-330 DeviceNet Electronic Data Sheet (.eds) - Previous Revision

pdf icon SE-330 DeviceNet Manual - New Revision

This document describes the DeviceNet features supported by the new revision SE-330, SE-330AU, and SE-330HV.

pdf icon SE-330 DeviceNet Manual - Previous Revision

This document describes the Anybus DeviceNet features supported by the SE-330/SE-330AU/SE-330HV.

pdf icon SE-330 Profibus Manual - Previous Revision

The Profibus-DP slave interface on the SE-330/ SE-330AU/SE330HV is used to access meter data and provide reset functions. Set points can be read but not written.

pdf icon SE-330 EthernetIP Manual - New Revision

This document describes the EtherNet/IP features supported by the new revision SE-330, SE-330AU, and SE-330HV.

pdf icon SE-330 EthernetIP Manual - Previous Revision

This document describes the Anybus Ethernet IT features supported by the SE-330/SE-330AU/SE-330HV.

pdf icon SE-330 MODBUS TCP Manual - New Revision

This document describes the Modbus/TCP features supported by the new revision SE-330, SE-330AU(1), and SE-330HV.

pdf icon SE-330 IEC 61850 Interface Manual - New Revision

This manual describes the features of the SE-330, SE-330AU, and SE-330HV IEC 61850 interface.

pdf icon SE-330 IEC 61850 Communication Conformance Statement

The purpose of this document is to declare the conformance of the SE-330 IEC 61850 server to the IEC 61850 standard.

SE-MON330 v3.8 Software

This software is used to receive data from SE-330, SE-330AU, and SE-330HV Neutral-Grounding-Resistor Monitors. It will display the relay's set points as well as measured values.

ER-15Kv 3D Model

SE-330 Surface Mount Adapter CAD Drawing

SE-330 CAD Drawing Previous Revision

SE-330 CAD Drawing New Revision

ER-25kv CAD Drawing

ER-600VC CAD Drawing

pdf icon Littelfuse Protection Relays Monitoring NGRs TN

Monitoring Neutral-Grounding Resistors—An Update...

pdf icon SE-330 Firmware Update Instructions


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