Littelfuse SE-701-0T - SE-701-0T is a ground-fault monitor with a supply voltage dc of 48 and is uniquely suited for systems with significant harmonic content.
Littelfuse

SE-701-0T

Alternate Item Number: SE-701-0T

UPC: 079458989069


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Overview

The Littelfuse SE-701-0T Ground-Fault Monitor is a specialized, high-performance solution engineered for critical 48 VDC systems, particularly those operating in environments with significant harmonic content. This advanced monitor from Littelfuse, a recognized leader in circuit protection, is designed to provide unparalleled reliability and safety in demanding industrial applications. Understanding the challenges posed by modern electrical systems, the SE-701-0T excels where standard ground-fault detection might falter. Its unique design accounts for the presence of harmonic distortion, which can arise from variable frequency drives (VFDs), switching power supplies, and other non-linear loads. By accurately detecting ground faults even in the presence of these electrical anomalies, the SE-701-0T ensures the integrity of your equipment and the safety of personnel. This is crucial for industries such as renewable energy (solar and wind farms), industrial automation, data centers, and telecommunications, where stable and clean power is paramount. The SE-701-0T is built with Littelfuse's commitment to quality and durability. Its robust construction ensures consistent performance under harsh operating conditions, including temperature fluctuations, vibration, and electrical noise. The 48 VDC supply voltage rating makes it ideal for a wide range of low-voltage DC applications where standard AC protection methods are not applicable or sufficient. Key benefits and features of the Littelfuse SE-701-0T include: * **Advanced Harmonic Content Immunity:** Specifically designed to operate reliably in systems with significant harmonic distortion, preventing false trips and ensuring continuous operation. * **Precise Ground-Fault Detection:** Offers accurate and sensitive detection of ground faults, minimizing downtime and preventing potential damage to sensitive equipment. * **48 VDC System Compatibility:** Tailored for 48 VDC power systems, a common standard in many industrial and specialized applications. * **Enhanced Safety and Reliability:** Protects personnel and equipment from the hazards associated with ground faults, contributing to a safer working environment and operational continuity. * **Durable Industrial Design:** Built to withstand the rigors of industrial environments, ensuring long-term performance and reduced maintenance. When selecting a ground-fault monitor, especially for systems with complex power characteristics, the Littelfuse SE-701-0T stands out as a superior choice. Its specialized capabilities address the unique challenges of modern electrical infrastructure, making it an indispensable component for maintaining operational efficiency and safety. Trust Littelfuse for your critical circuit protection needs, ensuring peace of mind and robust performance in your most demanding applications.
  • Littelfuse SE-701-0T Ground-Fault Monitor
  • Designed for 48 VDC systems
  • Uniquely suited for systems with significant harmonic content
  • Ensures reliable operation and personnel safety
  • Robust industrial design for demanding environments

Specifications

Application
NA
Brand Name
Littelfuse
Series
SE-701
Special Features
Adjustable Time Delay
Standard
CSA CE UL C-Tick
Sub Brand
SE 701 Series
Type
Ground Fault Relays
Voltage Rating
48 VDC
Package Weight (Imperial)
1.100 L
Package Weight (Metric)
0.500 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.