Littelfuse LTFD101-3 - 80VDC 125A TLS DISCONNECT W/STUD
Littelfuse

LTFD101-3

UPC: 079458062175


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Specification Sheet

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Overview

The Littelfuse LTFD101-3 is a high-performance 80VDC 125A TLS (Twin Lead Screw) disconnect switch engineered for robust industrial power distribution systems. This critical component ensures safe, reliable, and efficient power isolation, a fundamental requirement in demanding operational environments. Its primary function is to provide a secure means of disconnecting electrical circuits, safeguarding personnel and equipment during maintenance, troubleshooting, or emergency situations. The integrated stud design facilitates secure mechanical mounting and electrical connection, simplifying installation and ensuring a stable interface for high-current applications. Littelfuse, a globally recognized leader in circuit protection and power control solutions, brings its extensive expertise to the LTFD101-3. This disconnect switch is built with durability and longevity in mind, utilizing high-quality materials and manufacturing processes to withstand the rigors of industrial use. Its robust construction guarantees consistent performance even under frequent operation cycles and challenging environmental conditions. The 80VDC rating makes it suitable for a wide array of DC power applications, while the 125A current handling capacity addresses the needs of many high-power systems. Key features and benefits of the Littelfuse LTFD101-3 include: * **High Current Capacity:** Rated for 125 Amperes, capable of handling significant power loads. * **DC Voltage Rating:** Designed for 80 Volts DC applications, common in renewable energy and specialized industrial DC systems. * **TLS (Twin Lead Screw) Mechanism:** Provides a reliable and secure method for engaging and disengaging the circuit, ensuring positive contact and low resistance. * **Integrated Stud Mounting:** Simplifies installation and provides a robust connection point for power conductors. * **Durable Construction:** Built to withstand industrial environments, ensuring long-term operational reliability. This disconnect switch is an indispensable component in various industrial sectors. It finds extensive application in: * **Renewable Energy Systems:** Including solar power installations and battery energy storage systems (BESS) where DC power management is crucial. * **Industrial Machinery:** For isolating power to heavy-duty equipment, robotics, and automated production lines. * **Electric Vehicle Charging Infrastructure:** Ensuring safe disconnection for maintenance and servicing. * **Telecommunications Power Systems:** Providing reliable DC power isolation for critical infrastructure. * **Data Centers:** For managing DC power distribution to servers and other critical equipment. Professionals select disconnect switches like the LTFD101-3 based on their specific application requirements, including voltage, current, interrupting capacity, and environmental considerations. The Littelfuse LTFD101-3 offers a compelling combination of performance, reliability, and ease of integration, making it a preferred choice for engineers and technicians seeking dependable power control solutions. Its compact design and straightforward installation process contribute to reduced project timelines and lower overall system costs. Trust Littelfuse for your critical power isolation needs.
  • 80VDC Voltage Rating
  • 125A Current Capacity
  • TLS (Twin Lead Screw) Disconnect Mechanism
  • Integrated Stud for Secure Mounting and Connection
  • Robust Construction for Industrial Environments

Specifications

Connection Type
Stud
Current Rating
125 A
Mounting Type
Stud Mounting
Series
LTFD101
Voltage Rating
80 VDC
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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.