Littelfuse LTFD101-2 - 80VDC 100A TLS DISCONNECT W/SCREW
Littelfuse

LTFD101-2

UPC: 079458062168

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Specification Sheet

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Overview

The Littelfuse LTFD101-2 is a robust and reliable TLS (Thermal Magnetic) disconnect switch engineered for demanding industrial electrical systems. Designed to provide critical circuit protection and isolation, this unit is rated for a substantial 80VDC and can handle continuous current loads up to 100A. Its primary function is to safely interrupt electrical circuits under fault conditions, such as overloads or short circuits, thereby protecting sensitive equipment and personnel from damage or injury. The inclusion of secure screw terminals ensures a dependable and straightforward installation process, making it suitable for both new system builds and retrofitting existing infrastructure. This Littelfuse disconnect switch is an indispensable component in a wide array of industrial applications. It finds extensive use in power distribution panels, battery management systems for renewable energy storage (like solar and wind power), electric vehicle charging infrastructure, and heavy-duty industrial machinery. The 80VDC rating makes it particularly well-suited for DC power systems prevalent in these sectors. Its ability to reliably disconnect power is paramount for maintenance operations, ensuring that circuits are de-energized before any work is performed, thus adhering to stringent safety protocols. Key features of the Littelfuse LTFD101-2 include: * **High Current and Voltage Rating:** 100A continuous current and 80VDC operational voltage capacity, suitable for high-power DC applications. * **Secure Screw Terminals:** Facilitates easy and reliable electrical connections, minimizing the risk of loose wiring and ensuring long-term performance. * **TLS Technology:** Incorporates Thermal Magnetic trip technology for effective protection against both sustained overloads and instantaneous short circuits. * **Robust Construction:** Built to withstand harsh industrial environments, offering durability and longevity. * **Brand Reputation:** Manufactured by Littelfuse, a globally recognized leader in circuit protection, ensuring quality and performance you can trust. When selecting a disconnect switch for critical industrial applications, factors such as voltage and current ratings, termination type, and environmental resilience are paramount. The LTFD101-2 from Littelfuse addresses these needs comprehensively. Its straightforward installation, coupled with the assurance of Littelfuse's commitment to quality and safety standards, makes it a preferred choice for engineers and technicians. By ensuring reliable isolation and protection, this TLS disconnect switch contributes significantly to the overall safety, efficiency, and uptime of industrial electrical systems, making it a vital investment for any facility prioritizing operational integrity and personnel safety.
  • 80VDC Voltage Rating
  • 100A Continuous Current Capacity
  • TLS (Thermal Magnetic) Disconnect Technology
  • Secure Screw Terminal Connections
  • Robust Industrial Construction

Specifications

Connection Type
Screw Terminal
Connection Type
Screw Terminals
Current Rating
100 A
Series
TLS
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.