Authorized Littelfuse Distributor
Littelfuse SE-330HV-23-01 - SE-330HV-23-01 is an advanced ground-fault and neutral-grounding resistor monitor with a supply voltage ac of 28–52 and a supply voltage dc of 36–72. This monitor is used for high-voltage applications. Network communications is offered via USB; Ethernet (Dual RJ45).
Littelfuse

SE-330HV-23-01

Alternate Item Number: SE-330HV-23-01

UPC: 079458988925


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Overview

The Littelfuse SE-330HV-23-01 is a high-performance ground-fault and neutral-grounding resistor monitor engineered for demanding high-voltage industrial applications. Designed to safeguard critical electrical infrastructure, this advanced monitor ensures reliable operation in environments where ground-fault detection and neutral-grounding resistor monitoring are essential for system safety and compliance. With a versatile supply voltage range of 28–52 VAC and 36–72 VDC, the SE-330HV-23-01 delivers consistent performance across diverse power systems, from substations to industrial facilities. Ground-fault and neutral-grounding resistor monitoring is a cornerstone of electrical safety in high-voltage systems, where unchecked faults can lead to equipment damage, operational disruptions, or even catastrophic failures. The SE-330HV-23-01 addresses these risks by providing real-time monitoring of ground-fault currents and neutral-grounding resistor integrity, enabling proactive maintenance and minimizing downtime. Its robust design and advanced diagnostics make it an ideal solution for industries such as power generation, renewable energy, mining, petrochemical, and large-scale manufacturing, where electrical safety and reliability are non-negotiable. Key features of the Littelfuse SE-330HV-23-01 include dual connectivity options—USB and dual Ethernet (RJ45)—ensuring seamless integration into existing network infrastructures. This allows for remote monitoring, data logging, and integration with SCADA or other industrial control systems, enhancing operational efficiency and reducing the need for on-site inspections. The monitor’s wide voltage compatibility eliminates the need for additional power supply adjustments, simplifying installation and reducing total cost of ownership. Professionals in the electrical engineering and maintenance fields rely on Littelfuse for its reputation as a leader in circuit protection and monitoring solutions. With decades of experience, Littelfuse has established itself as a trusted partner for industrial applications requiring precision, durability, and compliance with international safety standards. The SE-330HV-23-01 exemplifies this commitment, offering a combination of advanced functionality, ease of use, and reliability that meets the rigorous demands of modern high-voltage systems. Installation of the SE-330HV-23-01 is straightforward, with clear labeling and modular design for quick integration into new or existing systems. The monitor’s compact form factor and DIN-rail mounting options make it suitable for both retrofit projects and new installations. Additionally, its low power consumption and high immunity to electrical noise ensure stable operation even in harsh industrial environments. For facilities prioritizing safety, efficiency, and long-term reliability, the Littelfuse SE-330HV-23-01 is a critical component in any ground-fault and neutral-grounding resistor monitoring strategy. Whether deployed in a power distribution network, renewable energy farm, or heavy industrial plant, this monitor provides the visibility and control needed to maintain operational integrity and protect valuable assets.
  • Wide voltage range: 28–52 VAC / 36–72 VDC for versatile power compatibility
  • Dual connectivity: USB and dual Ethernet (RJ45) for seamless network integration
  • Real-time monitoring of ground-fault currents and neutral-grounding resistor integrity
  • Compact, DIN-rail mountable design for easy installation in industrial environments
  • Trusted Littelfuse quality for critical high-voltage applications

Specifications

Application
Low- and medium-voltage transformers and generators
Brand Name
Littelfuse
Mounting Type
DIN-Rail
Series
SE-330HV
Special Features
Continuous NGR monitoring
Sub Brand
SE 330 Series
Type
Neutral-grounding resistor monitor
Voltage Rating
28–52 VAC / 36–72 VDC
Voltage Rating
28-52 VAC / 36-72 VDC
Package Dimensions (L x W x H)
5.8 IN x 3.9 IN x 8.4 IN
Package Dimensions (L x W x H)
14.732 cm x 9.906 cm x 21.336 cm
Package Weight (Imperial)
4.400 L
Package Weight (Metric)
2.000 kg
RTXD Extractor Tool

6896057-1

RTXD Extractor Tool
Relay Accessories, Sockets & Clips, Printed Circuit Board, Phenolic, Printed Circuit Board, 6, Socket, Potter & Brumfield R10

1-1393143-3

Relay Accessories, Sockets & Clips, Printed Circuit Board, Phenolic, Printed Circuit Board, 6, Socket, Potter & Brumfield R10
Relay Accessories, Sockets & Clips, Solder, Polyester, Printed Circuit Board, 2, Socket, Potter & Brumfield R10

1-1393143-6

Relay Accessories, Sockets & Clips, Solder, Polyester, Printed Circuit Board, 2, Socket, Potter & Brumfield R10
Power supply for DIN-rail

PS-60

Power supply for DIN-rail
IP67 SCP-X Extreme Environment Series Power Supply. Double Stacked, Output Power 2 x 100W, Output Voltage 24 Vdc, Output Current 7.6 A total, 3.8 A per pair

SCP102D24X-C02

IP67 SCP-X Extreme Environment Series Power Supply. Double Stacked, Output Power 2 x 100W, Output Voltage 24 Vdc, Output Current 7.6 A total, 3.8 A per pair

Frequently Asked Questions about Littelfuse

What certifications and standards do Littelfuse products comply with?

Littelfuse products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Customers can verify specific product certifications by consulting individual product datasheets on Littelfuse.com, which provide comprehensive details about standards compliance for each component.

What industries and applications are Littelfuse products used for?

Littelfuse products are critical for electrical protection and safety across multiple industrial sectors, including manufacturing, automation, power distribution, and electrical control systems. Their comprehensive product portfolio serves industries that require robust electrical protection, including motor and pump applications, solar installations, programmable logic controllers (PLCs), electrical switch panels, and critical infrastructure environments. Key product lines protect against overcurrent, voltage transients, ground faults, and temperature-related electrical risks, ensuring equipment safety and operational reliability.

What technical support does Littelfuse offer?

Littelfuse offers comprehensive technical support through multiple channels. Their Technical Hotline (800-TEC-FUSE) provides direct access to engineers who can help identify issues and recommend solutions. Additionally, Littelfuse offers extensive online Technical Resources at Littelfuse.com, including datasheets, product manuals, whitepapers, application guides, and online design tools. Their experienced product and application engineers also provide step-by-step support from design to installation.

What are the main product lines offered by Littelfuse?

Littelfuse offers comprehensive industrial protection and control product lines, including fuses, fuse holders, protection relays, temperature sensors, and electrical safety components. Their key product categories span surge protective devices, custom OEM products, electrical switch panels, medium voltage fuses, ground-fault protection relays, motor and pump protection devices, and temperature sensors. These products are designed to minimize electrical safety hazards, limit equipment damage, improve productivity, and safeguard personnel from electrical faults.

What are the key features of Littelfuse products?

Littelfuse products feature exceptional circuit protection technologies with key characteristics including UL/IEC safety standard compliance, low internal resistance, and advanced protective capabilities across multiple product lines. Their components provide critical protection for industrial systems, offering features like overcurrent protection, voltage transient suppression, and resettable protection devices with ultra-low resistance and compact designs. Key product lines include fuses, metal oxide varistors (MOVs), TVS diodes, PolySwitch devices, and specialized electronic protection components that enhance system reliability and safety.

What environmental ratings do Littelfuse products have?

Littelfuse products feature comprehensive environmental ratings, including NEMA Type 1, 2, 3, 3R, 4/4X, 12, and 13 certifications, as well as IP65 protection. These ratings ensure superior protection in diverse industrial environments, with an operating temperature range of -40°F to +131°F (-40°C to +55°C). Many products also include UV-stabilized materials and neoprene gaskets for enhanced durability in outdoor and challenging conditions.

What accessories are available for Littelfuse products?

Littelfuse offers several key accessories across their product lines, including fuse holders, voltage monitoring modules, and terminal connectors. Specific accessories include the LPSM003ZXID (indicating) and LPSM003Z (non-indicating) POWR-SAFE Dead Front fuse holders for Class CC and Midget-Style fuses, the VRM6048 voltage monitor accessory module, and female quick connect terminals (P1015 series) in various wire gauge sizes. These accessories are designed to enhance protection, monitoring, and connectivity for Littelfuse electrical components.

What is Littelfuse's warranty policy?

Littelfuse provides comprehensive warranty details on their official website at www.littelfuse.com/warranty. Customers should visit this page to review the specific warranty terms and conditions for their specific product lines. For direct warranty support or questions, customers can contact Littelfuse Technical Support at 1-800-TEC-FUSE or email [email protected].

What communication protocols do Littelfuse products support?

Littelfuse supports a comprehensive range of industrial communication protocols, including PROFIBUS, PROFINET, EtherNet/IP, DeviceNet, Modbus RTU, and CANopen. Our products provide flexible connectivity solutions across multiple industrial automation platforms, enabling seamless integration with various control systems and network architectures.

How are Littelfuse products typically installed?

Littelfuse products are typically installed using specialized mounting hardware like fuse holders, blocks, and panels designed for specific industrial applications. The POWR-SAFE Dead Front holders, for example, provide optimum protection for Class CC and Midget-Style fuses, supporting installations up to 600 VAC/DC. Installation often involves using precision terminals with strain relief, such as 0.25 in. female quick connect terminals, to ensure secure and safe electrical connections in industrial control systems.