Littelfuse TLS090LB - TLS090LB is a Telecommunications fuse with an ampere rating of 90.
Littelfuse

TLS090LB

Alternate Item Number: 0TLS090.TXLB

UPC: 079458121582


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Minimum Qty: 500

Multiplier: 500

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Overview

The **Littelfuse TLS090LB** is a high-performance telecommunications fuse engineered to deliver robust overcurrent protection in critical telecom infrastructure. Designed for applications where reliability and precision are non-negotiable, this 90-ampere fuse provides a dependable safeguard against damaging fault currents, ensuring uninterrupted service in high-stakes environments. As a trusted component in telecommunications systems, the TLS090LB is optimized for installations requiring fast-acting response times and long-term durability, making it an essential choice for network operators, data centers, and enterprise telecom environments. Telecommunications fuses like the TLS090LB are specifically formulated to meet the stringent demands of modern telecom networks, where even minor disruptions can cascade into costly downtime. Unlike general-purpose fuses, telecommunications fuses are engineered with lower let-through energy (I²t) values to minimize stress on sensitive equipment while providing rapid fault isolation. The TLS090LB excels in this role, offering a balance of high interrupting rating and precise current interruption to protect vital components such as power distribution units, rectifiers, and line cards. **Key Features and Benefits:** - **High Interrupting Rating:** The TLS090LB is designed to safely interrupt high fault currents, ensuring system safety during short-circuit events. This is critical in telecom environments where power surges or faults could otherwise damage expensive infrastructure. - **Fast-Acting Response:** Engineered for rapid fault detection and clearance, the fuse minimizes exposure to damaging overcurrent conditions, reducing the risk of equipment failure and service outages. - **Compact and Reliable Design:** Its space-efficient form factor allows for easy integration into crowded telecom racks and cabinets, while robust construction ensures consistent performance across a wide range of operating conditions. - **Industry-Recognized Quality:** Littelfuse is a global leader in circuit protection solutions, with decades of expertise in telecommunications applications. The TLS090LB reflects the company’s commitment to innovation, reliability, and compliance with international standards such as UL and IEC. - **Wide Application Compatibility:** Suitable for central office switches, cellular base stations, data centers, and enterprise telecom networks, the TLS090LB is a versatile solution for both legacy and next-generation systems. **Industry Applications:** Telecommunications fuses are the unsung heroes of network reliability. In central offices, they protect power distribution systems from overloads that could disrupt voice and data services. At cellular base stations, they ensure that power fluctuations do not compromise signal integrity or damage sensitive radio equipment. Data centers rely on these fuses to maintain uptime for cloud services, while enterprise networks depend on them to safeguard critical infrastructure like PBX systems and VoIP equipment. The TLS090LB is particularly well-suited for environments where high current loads are common, such as fiber-optic node power supplies or high-capacity switching systems. **Selection and Installation Considerations:** When specifying a telecommunications fuse, professionals must consider several factors beyond the ampere rating. The interrupting rating, response time, and physical dimensions all play a role in ensuring compatibility with the application. The TLS090LB is designed to meet the UL 248-14 standard for fuses, providing assurance of its performance and safety. Professionals should also evaluate the fuse’s mounting options—whether blade-style, bolt-in, or plug-in—to ensure seamless integration into existing systems. Installation is straightforward but requires adherence to best practices. Always verify that the fuse matches the system’s voltage and current requirements, and ensure proper torque settings during installation to avoid loose connections. Regular inspection and replacement of fuses after fault events are essential to maintaining system integrity. Littelfuse provides comprehensive documentation and support to assist engineers in selecting and deploying the TLS090LB, reinforcing its reputation as a go-to solution for telecom circuit protection. **Why Choose Littelfuse?** With over a century of innovation in circuit protection, Littelfuse has earned the trust of industries worldwide. The company’s telecommunications fuses, including the TLS090LB, are backed by rigorous testing and a global distribution network, ensuring availability when and where they are needed. Whether you are designing a new telecom network or upgrading an existing one, the TLS090LB delivers the reliability and performance required to keep systems running smoothly. For engineers and procurement professionals seeking a proven solution for telecom circuit protection, the Littelfuse TLS090LB stands as a benchmark in the industry.
  • 90A current rating for high-capacity telecom applications
  • Fast-acting response to minimize equipment damage
  • High interrupting rating for safe fault current interruption
  • Compact design for easy integration into telecom racks
  • UL 248-14 compliant for industry-standard reliability

Specifications

Application
Telecommunications
Brand Name
Littelfuse
Special Features
Multiple mounting configurations
Sub Brand
TLS Series
Type
Current Limiting
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in
POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

LCC5

POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

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.