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Littelfuse SE-330HV-21-01 - SE-330HV-21-01 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; DeviceNet.
Littelfuse

SE-330HV-21-01

Alternate Item Number: SE-330HV-21-01

UPC: 079458988888


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Overview

The Littelfuse SE-330HV-21-01 stands as a sophisticated solution for monitoring ground faults and neutral-grounding resistors in demanding high-voltage industrial environments. Engineered by Littelfuse, a recognized leader in circuit protection and power control, this advanced monitor (SKU: SE-330HV-21-01) is designed to ensure the integrity and safety of critical power systems. Its robust design accommodates a wide supply voltage range, operating reliably with AC voltages from 28 to 52 volts and DC voltages from 36 to 72 volts, making it adaptable to various power configurations. This monitor is indispensable for applications where precise detection of ground faults is paramount to prevent equipment damage, ensure personnel safety, and maintain operational continuity. The SE-330HV-21-01 is particularly suited for high-voltage power distribution networks, substations, industrial plants, and renewable energy installations where ground faults can pose significant risks. Its capability to monitor neutral-grounding resistors further enhances system reliability by providing early warnings of potential issues within the grounding system, which is crucial for system stability and fault isolation. Seamless integration into existing industrial control and monitoring infrastructure is a key advantage of the SE-330HV-21-01. It offers advanced network communication options, including USB for direct connection and diagnostics, and DeviceNet for robust industrial networking. This connectivity allows for real-time data acquisition, remote monitoring, and efficient integration with SCADA systems, PLCs, and other automation platforms. The ability to remotely access critical fault data and system status significantly reduces downtime and streamlines maintenance procedures. Key features and benefits of the Littelfuse SE-330HV-21-01 include: * **Advanced Ground-Fault Detection:** Provides highly sensitive and reliable detection of ground faults, crucial for safety and system protection. * **Neutral-Grounding Resistor Monitoring:** Continuously assesses the integrity of neutral-grounding resistors, preventing potential system failures. * **Wide Voltage Compatibility:** Operates across a broad supply voltage range (28–52 VAC / 36–72 VDC) for versatile application in different power systems. * **High-Voltage Application Ready:** Specifically designed and tested for the stringent requirements of high-voltage industrial power systems. * **Flexible Network Communications:** Supports both USB and DeviceNet for easy integration into modern industrial networks and automation systems. * **Enhanced Safety and Reliability:** Contributes to a safer working environment and more dependable power system operation. * **Reduced Downtime:** Facilitates proactive maintenance and rapid fault response through real-time monitoring and diagnostics. Professionals in electrical engineering, plant maintenance, and industrial automation rely on Littelfuse products for their proven performance and durability. The SE-330HV-21-01, part of the SE-330HV series, exemplifies this commitment to quality, offering a dependable and intelligent solution for critical ground-fault and grounding resistor monitoring needs. Its adoption can lead to significant improvements in operational efficiency, safety compliance, and overall system resilience.
  • Advanced ground-fault and neutral-grounding resistor monitoring for high-voltage applications.
  • Wide supply voltage range: 28–52 VAC and 36–72 VDC.
  • Network communication options: USB and DeviceNet for seamless integration.
  • Enhances safety and reliability in critical industrial power systems.
  • Designed for demanding environments by Littelfuse.

Specifications

Application
Low- and medium-voltage transformers and generators
Brand Name
Littelfuse
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
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
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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.