Littelfuse SE-330-01-01 - SE-330-01-01 is an advanced ground-fault and neutral-grounding resistor monitor with a supply voltage ac of 65–265 and a supply voltage dc of 85–275. Network communications is offered via USB; DeviceNet.
Littelfuse

SE-330-01-01

Alternate Item Number: SE-330-01-01

UPC: 079458988369

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Overview

The **Littelfuse SE-330-01-01** is a high-performance ground-fault and neutral-grounding resistor monitor engineered for industrial power distribution systems where safety, reliability, and real-time monitoring are critical. Designed to detect ground faults and monitor neutral-grounding resistors, this advanced monitor ensures compliance with electrical safety standards while preventing costly downtime and equipment damage. With a wide voltage range of **65–265 VAC** and **85–275 VDC**, the SE-330-01-01 operates seamlessly in diverse industrial environments, from manufacturing plants to renewable energy facilities and data centers. Ground-fault monitoring is essential in industrial electrical systems to prevent arc faults, equipment failure, and hazardous conditions that could lead to fires or electrical shock. The **SE-330-01-01** leverages Littelfuse’s decades of expertise in electrical protection to deliver precise, responsive monitoring with minimal false alarms. Its **USB and DeviceNet communication interfaces** enable effortless integration into modern industrial networks, allowing for remote diagnostics, data logging, and system automation. Whether deployed in low-voltage or medium-voltage applications, this monitor provides engineers and maintenance teams with the critical insights needed to maintain operational integrity. **Key Applications & Industries** The SE-330-01-01 is ideal for a wide range of industrial applications, including: - **Power distribution systems** in manufacturing, mining, and oil & gas facilities - **Renewable energy installations**, such as solar and wind farms, where ground-fault detection is vital for grid stability - **Data centers and critical infrastructure**, where uninterrupted power and fault detection are non-negotiable - **Hospitals and healthcare facilities**, where electrical safety compliance is strictly regulated - **Commercial buildings and infrastructure**, including airports, transportation hubs, and large-scale facilities **Why Choose the Littelfuse SE-330-01-01?** Littelfuse is a globally recognized leader in electrical protection, surge suppression, and monitoring solutions, with a reputation for innovation and reliability. The **SE-330-01-01** reflects the company’s commitment to delivering products that enhance safety, efficiency, and system longevity. Its **wide voltage compatibility** eliminates the need for multiple variants, reducing inventory complexity and simplifying procurement. The inclusion of **USB and DeviceNet connectivity** ensures compatibility with existing SCADA systems, PLCs, and industrial automation platforms, making it a future-proof choice for evolving industrial networks. **Installation & Compliance Considerations** Installing the SE-330-01-01 is straightforward, with flexible mounting options and clear wiring terminals for easy integration. The monitor is designed to meet stringent industry standards, including **IEC 61439, UL 508, and NEC (National Electrical Code) requirements** for ground-fault protection. Regular maintenance is simplified thanks to its **self-diagnostic capabilities** and **event logging**, which track fault history and system performance over time. For professionals responsible for electrical safety, this monitor provides peace of mind by offering **real-time alerts, configurable thresholds, and remote access**—all of which contribute to a proactive maintenance strategy. **Technical Excellence & Industry Trust** The SE-330-01-01 is built to withstand harsh industrial environments, with robust construction and compliance with **IP20 protection ratings** for dust and moisture resistance. Its **high-precision sensing** ensures accurate detection of ground faults, even in systems with high harmonic distortion or transient conditions. By partnering with Littelfuse, engineers gain access to a **global support network**, including technical documentation, application engineering assistance, and certified training programs. For industries where electrical safety and system reliability are paramount, the **Littelfuse SE-330-01-01** is the smart choice—a monitor that not only meets regulatory requirements but also enhances operational efficiency and reduces risk.
  • Wide voltage range: 65–265 VAC / 85–275 VDC for versatile industrial use
  • USB and DeviceNet communication for seamless network integration
  • Real-time ground-fault detection with configurable thresholds
  • Compliant with IEC 61439, UL 508, and NEC safety standards
  • Robust design with IP20 protection for harsh environments

Specifications

Application
Low- and medium-voltage transformers and generators
Brand Name
Littelfuse
IP Rating
IP20
Series
SE-330
Special Features
Continuous NGR monitoring
Sub Brand
SE 330 Series
Type
Neutral-grounding resistor monitor
Voltage Rating
65–265 VAC / 85–275 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.