SE-330HV Series - Neutral-Grounding-Resistor Monitor

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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The SE-330HV is an advanced ground-fault and neutral-grounding resistor monitoring relay that is compliant with Rule 10-302 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. A unique LED flashing code provides external confirmation for plant safety teams and inspectors when standards-compliant protection has been configured and is active.

The SE-330HV can be used with medium- and high-voltage transformers and generators with low- or high-resistance grounding used in processing, manufacturing, chemical, pulp and paper, petroleum, and water-treatment facilities. For applications 25 kV and below, use the SE-330. For applications that require conformance to Australian/New Zealand standard AS/NZS 2081, use the SE-330AU.

Complete setup of the SE-330HV requires connection to a PC running SE-MON330 v4.10 or higher.

Access specifications, certifications, check availability and order parts below

Catalog #Supply
Voltage
VAC
Supply
Voltage
VDC
Relay Contacts ConfigAnalog Output Current mACommunicationsNew Rev AvailOld Rev AvailIEEE Device NumbersRelay
Contact
Operating
DimensionsWeight (lbs/g)Auto Manual ResetConformally coatedFrequencyGF Trip Level Range pctSamplesCompare
SE-330HV-00-0065 - 26585 - 2752 Form A; 2 Form C4 - 20USBNowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-00-0165 - 26585 - 2751 Form A; 1 Form B; 2 Form C4 - 20USBNowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-01-0065 - 26585 - 2752 Form A; 2 Form C4 - 20USB; DeviceNetNowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-01-0165 - 26585 - 2751 Form A; 1 Form B; 2 Form C4 - 20USB; DeviceNetNowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-03-0065 - 26585 - 2752 Form A; 2 Form C4 - 20USB; Ethernet (Dual RJ45)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-03-0165 - 26585 - 2751 Form A; 1 Form B; 2 Form C4 - 20USB; Ethernet (Dual RJ45)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-04-0065 - 26585 - 2752 Form A; 2 Form C4 - 20USB; Ethernet (RJ45 and SC Fiber)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-04-0165 - 26585 - 2751 Form A; 1 Form B; 2 Form C4 - 20USB; Ethernet (RJ45 and SC Fiber)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-05-0065 - 26585 - 2752 Form A; 2 Form C4 - 20USB; Ethernet (Dual SC Fiber)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-05-0165 - 26585 - 2751 Form A; 1 Form B; 2 Form C4 - 20USB; Ethernet (Dual SC Fiber)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-06-0065 - 26585 - 2752 Form A; 2 Form C4 - 20USB; IEC61850 (Dual RJ45)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-06-0165 - 26585 - 2751 Form A; 1 Form B; 2 Form C4 - 20USB; IEC61850 (Dual RJ45)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-07-0065 - 26585 - 2752 Form A; 2 Form C4 - 20USB; IEC61850 (RJ45 and SC Fiber)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-07-0165 - 26585 - 2751 Form A; 1 Form B; 2 Form C4 - 20USB; IEC61850 (RJ45 and SC Fiber)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-08-0065 - 26585 - 2752 Form A; 2 Form C4 - 20USB; IEC61850 (Dual SC Fiber)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-08-0165 - 26585 - 2751 Form A; 1 Form B; 2 Form C4 - 20USB; IEC61850 (Dual SC Fiber)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-20-0028 - 5236 - 722 Form A; 2 Form C4 - 20USBNowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-20-0128 - 5236 - 721 Form A; 1 Form B; 2 Form C4 - 20USBNowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-21-0028 - 5236 - 722 Form A; 2 Form C4 - 20USB; DeviceNetNowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-21-0128 - 5236 - 721 Form A; 1 Form B; 2 Form C4 - 20USB; DeviceNetNowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-23-0028 - 5236 - 722 Form A; 2 Form C4 - 20USB; Ethernet (Dual RJ45)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-23-0128 - 5236 - 721 Form A; 1 Form B; 2 Form C4 - 20USB; Ethernet (Dual RJ45)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-24-0028 - 5236 - 722 Form A; 2 Form C4 - 20USB; Ethernet (RJ45 and SC Fiber)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-24-0128 - 5236 - 721 Form A; 1 Form B; 2 Form C4 - 20USB; Ethernet (RJ45 and SC Fiber)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-25-0028 - 5236 - 722 Form A; 2 Form C4 - 20USB; Ethernet (Dual SC Fiber)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-25-0128 - 5236 - 721 Form A; 1 Form B; 2 Form C4 - 20USB; Ethernet (Dual SC Fiber)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-26-0028 - 5236 - 722 Form A; 2 Form C4 - 20USB; IEC61850 (Dual RJ45)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-26-0128 - 5236 - 721 Form A; 1 Form B; 2 Form C4 - 20USB; IEC61850 (Dual RJ45)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-27-0028 - 5236 - 722 Form A; 2 Form C4 - 20USB; IEC61850 (RJ45 and SC Fiber)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-27-0128 - 5236 - 721 Form A; 1 Form B; 2 Form C4 - 20USB; IEC61850 (RJ45 and SC Fiber)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-28-0028 - 5236 - 722 Form A; 2 Form C4 - 20USB; IEC61850 (Dual SC Fiber)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder
SE-330HV-28-0128 - 5236 - 721 Form A; 1 Form B; 2 Form C4 - 20USB; IEC61850 (Dual SC Fiber)NowNo longer available50G - 50N - 51G - 51N - 59N - 86Fail-safe / Non Fail-safe8.4 H x 3.9 W x 5.8 D in.0 KgLatching; AutoresetStandard50; 60; ASD2 - 100% of CT-Primary RatingOrder

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