Littelfuse SE-107EL - GF-GC MONITOR UVR LATCHING GC 240 VAC. The SE-105/SE-107 is a combination ground-wire monitor and ground-fault relay for resistance-grounded systems. It continuously monitors the integrity of the ground conductor to protect portable equipment from hazardous voltages caused by ground faults. The SE-105/SE-107 is an excellent choice for trailing cables 5 kV and under in underground mining applications. For higher voltages or long-cable applications, see the SE-134C/SE-135.
Littelfuse

SE-107EL

UPC: 079458987973


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Overview

The Littelfuse SE-107EL GF-GC Monitor UVR Latching GC (SKU: SE-107EL) is a critical safety component engineered for resistance-grounded systems, providing robust protection for portable equipment. This advanced device continuously monitors the integrity of the ground conductor, a vital function for preventing hazardous voltage buildup that can occur due to ground faults. Designed with reliability and safety as paramount, the SE-107EL is an ideal solution for demanding industrial environments, particularly in underground mining operations where the safety of personnel and the longevity of equipment are non-negotiable. This monitor is specifically designed for trailing cables rated at 5 kV and under. Its UVR (Under Voltage Release) latching mechanism ensures that once a ground fault is detected, the system remains in a safe state until manually reset, preventing immediate re-energization of potentially hazardous circuits. The 240 VAC voltage rating makes it suitable for a wide range of standard industrial power distribution systems. Key features and benefits of the Littelfuse SE-107EL include: * **Continuous Ground Conductor Monitoring:** Proactively detects ground conductor integrity issues, preventing potential hazards before they escalate. * **Ground Fault Protection:** Safeguards portable equipment from dangerous voltages caused by ground faults, minimizing risk to personnel and reducing equipment damage. * **UVR Latching Functionality:** Ensures a safe state is maintained after a fault, requiring a manual reset for re-energization. * **Designed for Resistance-Grounded Systems:** Specifically optimized for the unique characteristics of resistance-grounded electrical networks. * **Ideal for Mining Applications:** A trusted choice for underground mining operations utilizing trailing cables up to 5 kV. Littelfuse is a globally recognized leader in circuit protection and switching solutions, renowned for its commitment to quality, innovation, and safety. The SE-105/SE-107 series, which includes the SE-107EL, exemplifies this dedication by offering dependable performance in critical applications. For scenarios involving higher voltages or extended cable runs, Littelfuse provides alternative solutions such as the SE-134C/SE-135 series, demonstrating their comprehensive approach to electrical safety across diverse industrial needs. Investing in the Littelfuse SE-107EL means investing in enhanced operational safety, reduced downtime, and greater peace of mind for your critical infrastructure.
  • Continuously monitors ground conductor integrity for enhanced safety.
  • Provides ground fault protection for portable equipment.
  • Features UVR latching for secure fault state maintenance.
  • Designed for resistance-grounded systems, ideal for mining.
  • Rated for 240 VAC, suitable for industrial trailing cables up to 5 kV.

Specifications

Application
Mining
Brand Name
Littelfuse
Series
SE-105/SE-107
Special Features
For trailing cables 5 kV
Standard
CSA UL
Sub Brand
SE 107 Series
Type
Trailing Cable Protection
Voltage Rating
240 Vac
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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.