SE-330HV-23-00 - SE-330HV Series

Series: SE-330HV
Questions? Contact Littelfuse Support
Roll Over to Zoom
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. It provides continuous monitoring of the neutral-to-ground path to verify that the neutral-grounding resistor (NGR) is intact. This is of utmost importance—an open NGR renders current-sensing ground-fault protection inoperative and could result in a false belief that the system is functioning properly. 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, see the SE-330AU.

The SE-330 New Revision provides these additional features:

  • 100 trip records with date and time stamp
  • A mini-USB interface to view measured values, configure settings and check event records using SE-MON330 v3.2 or later
  • An on-board microSD card (included) can be used for long term data logging and firmware upgrades
  • Ground-fault trip level is adjustable from 2 to 100% in 10 discrete settings, and in 1% increments when using the MEM setting and SE-MON330 v3.2 or later
  • Dual Ethernet ports are optionally available with support for fiber and RJ45 interfaces
  • IEC 61850 protocol is optionally available

Product Literature

For Technical Questions

Call +1 800-832-3873 or email us at relays@littelfuse.com 

Property (Mouseover for details) Value
Analog Output Current (mA) 4-20
Approvals CSA UL CE C-Tick
Comms USB Ethernet (Dual RJ45)
Relay Contacts Two Form A Two Form C
Supply Voltage (VAC) 28-52
Supply Voltage (VDC) 36-72
New Revision Availability Now
Old Revision Availability No longer available
IEEE Device Numbers 50G
50N
51G
51N
59N
86
Relay Contact Operating Mode Fail-safe
Non Fail-safe
Dimensions 8.4H X 3.9W X 5.8D

pdf icon SE-330 PCN Document

Changes to SE-330 Series Neutral-Grounding-Resistor Monitors
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.
pdf icon SE-330HV Datasheet New Revision

pdf icon SE-330HV Manual - New 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-330HV Manual - Previous Revision

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 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 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 DeviceNet Spanish Manual

SE-MON330 v4.0 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.
pdf icon SE-MON330 Software Manual

SE-MON330 is a PC-based application designed to access set-points, measured values, and trip records from the SE-330 Neutral-Grounding-Resistor Monitor, the SE-330HV Neutral-Grounding-Resistor Monitor, and the SE-330AU Neutral-Earthing- Resistor Monitor.
SE-330 HV DeviceNet Electronic Datasheet EDS - New Revision

SE-330 HV DeviceNet Electronic Datasheet EDS - Previous Revision

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

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

pdf icon SE-330 Spanish Manual - Previous Revision

Un sistema con conexión a tierra de alta resistencia usa un a resistencia de puesta a tierra del neutro ( RPT o NGR) con una baja corriente admisible para limitar la corriente de f alla de conexión a tierra.
pdf icon SE-330 Portuguese Manual - Previous Revision

Um sistema de aterramento de alta resistência usa um resistor de aterramento de neutro (NGR Neutral-Grounding Resistor) com uma baixa corrente de passagem para limitar a corrente de falha de aterramento. Is
pdf icon SE-330 Chinese Manual

pdf icon SE-330 Profibus Spanish Manual

ER-15Kv 3D Model

dwg ER-25kv CAD Drawing

pdf icon TN GF-10 Pulsing Ground-Fault Systems

pdf icon TN RG-01 NGR Monitoring Isolated Ground Beds

pdf icon TN RG-05 SE-330 Guideform Specification

pdf icon TN RG-07 SE-VS50010K Voltage Scaler

pdf icon TN RG-08 SE-330 Settings

pdf icon TN RG-09 Single NGR for Multiple Sources

pdf icon TN-RG11 Voltage Metering on RG Systems

pdf icon TN RG-12 Convert Ungrounded to Resistance Grounded

pdf icon TN RG-14 NGR Package Checklist

SE-330, SE-330AU, SE-330HV 3D Model

pdf icon TN 11-1 Ground-Fault CT Selection Guide

11-1AU Earth-Fault CT Selection Flowchart Australia

EARTH-FAULT-CT SELECTION FLOWCHART...
pdf icon 11-2 Locating Phase Conductors in a Zero-Sequence-CT Window

An ideal window-type current transformer responds only to the sum of the currents flowing through its window...
pdf icon 11-4 Trailing Cable Types

pdf icon 11-5 Polycast 200 5 CT Test

POLYCAST 200:5 CT TEST TECHNICAL INFORMATION...
pdf icon 11-7 Locating Phase Conductors in a Zero-Sequence CT Window