Littelfuse LTFD101-4 - 80VDC 100A TLS DISCONNECT W/CLIP
Littelfuse

LTFD101-4

UPC: 079458062182

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Specification Sheet

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Overview

The Littelfuse LTFD101-4 is a robust and reliable TLS (Type-Limited Switch) disconnect switch engineered for critical industrial power management applications. Designed to handle up to 80VDC and a substantial 100A current, this unit ensures safe and efficient isolation of electrical circuits. Its primary function is to provide a secure means of disconnecting power, crucial for maintenance, troubleshooting, and emergency shutdown procedures in demanding industrial environments. Manufactured by Littelfuse, a globally recognized leader in circuit protection, the LTFD101-4 benefits from decades of expertise in developing high-quality electrical components. This specific model, SKU LTFD101-4, is built for durability and performance, meeting the stringent requirements of modern industrial systems. The integrated clip mechanism simplifies installation and ensures a secure connection, reducing potential points of failure and streamlining maintenance workflows. Professionals can trust this disconnect switch for its consistent operation and long service life. Key features and benefits of the Littelfuse LTFD101-4 include: * **High Current and Voltage Rating:** Capable of safely managing 100A at 80VDC, making it suitable for a wide range of high-power DC applications. * **Reliable Disconnection:** Provides a clear and secure means to isolate circuits, enhancing safety and operational integrity. * **Durable Construction:** Built with industrial-grade materials to withstand harsh operating conditions, including vibration, temperature fluctuations, and electrical stress. * **Integrated Clip:** Facilitates straightforward installation and secure mounting, saving time and effort during setup and servicing. * **Littelfuse Quality:** Backed by the reputation of a leading manufacturer known for innovation and reliability in circuit protection. This TLS disconnect switch is an indispensable component in various industrial sectors, including: * **Renewable Energy Systems:** Essential for solar inverters, battery storage systems, and DC power distribution within wind farms. * **Industrial Automation:** Used in control panels, motor drives, and power supplies for manufacturing equipment and machinery. * **Telecommunications:** Critical for reliable power management in data centers and communication infrastructure. * **Electric Vehicle Charging Infrastructure:** Plays a role in the safe and efficient operation of DC charging stations. When selecting a disconnect switch, factors such as voltage and current ratings, interrupting capacity, environmental sealing, and ease of installation are paramount. The Littelfuse LTFD101-4 excels in these areas, offering a dependable solution for professionals seeking to maintain the highest standards of electrical safety and system uptime. Its robust design and the trusted Littelfuse brand ensure that your critical power circuits are protected and manageable.
  • 80VDC Voltage Rating
  • 100A Current Rating
  • TLS (Type-Limited Switch) Disconnect
  • Integrated Clip for Easy Installation
  • Reliable Power Isolation for Industrial Applications

Specifications

Connection Type
Clip
Current Rating
100 A
Series
LTFD
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.