Littelfuse TLS030LB - TLS030LB is a Telecommunications fuse with an ampere rating of 30.
Littelfuse

TLS030LB

Alternate Item Number: 0TLS030.TXLB

UPC: 079458061789

Documents & Media
BrochureTechnical BulletinTechnical DrawingSpecification Sheet

Contact for Pricing

Minimum Qty: 500

Multiplier: 500

*Contact for lower quantities*

Overview

The **Littelfuse TLS030LB 30A Telecommunications Fuse** is a high-performance overcurrent protection solution engineered specifically for the rigorous demands of telecommunications infrastructure. Designed to safeguard sensitive telecom equipment, this fuse delivers precise and reliable circuit protection in central offices, data centers, network switches, and transmission systems. With a 30-ampere rating, the TLS030LB ensures optimal performance while preventing damage from transient surges, overloads, and short circuits—critical threats in modern telecom environments where uptime and reliability are non-negotiable. Telecommunications systems operate under continuous stress, with equipment exposed to fluctuating loads, power surges, and environmental variations. The **TLS030LB** addresses these challenges with a robust construction that meets stringent industry standards, including UL and IEC certifications, ensuring compliance with global telecom safety regulations. Its fast-acting response time minimizes fault propagation, reducing the risk of cascading failures that could disrupt service across entire networks. Whether deployed in legacy PSTN systems, VoIP platforms, or next-generation 5G infrastructure, this fuse provides a dependable first line of defense against electrical faults. **Key Features and Benefits:** - **30A Ampere Rating**: Ideal for protecting high-current telecom circuits, including power distribution units (PDUs), line cards, and power supplies. - **Fast-Acting Response**: Minimizes downtime by quickly interrupting fault currents before they escalate into catastrophic failures. - **High Breaking Capacity**: Engineered to handle fault currents up to 100kA, ensuring robust protection even in high-fault scenarios. - **Compact and Reliable Design**: Fits standard telecom fuse holders and panels, simplifying installation and maintenance in constrained spaces. - **Industry-Compliant**: Meets UL 248-14 and IEC 60127-2 standards, guaranteeing compatibility with global telecom infrastructure. **Typical Applications:** The **TLS030LB** is widely used in telecom power distribution systems, including: - Central office equipment (e.g., DSLAMs, OLT, and ONT power supplies) - Data center power distribution units (PDUs) and UPS systems - Network switches, routers, and transmission gear - Fiber optic and wireless base station power feeds - Enterprise telecom systems (PBX, VoIP gateways, and unified communications platforms) **Why Choose Littelfuse for Telecom Protection?** Littelfuse is a global leader in circuit protection, with over a century of innovation in electrical safety solutions. The company’s telecom fuses, including the **TLS030LB**, are trusted by service providers and equipment manufacturers worldwide for their precision engineering, consistent performance, and adherence to rigorous quality standards. Unlike generic fuses, Littelfuse products undergo extensive testing to ensure reliability under real-world conditions—critical for telecom networks where even a momentary outage can result in significant financial and operational losses. **Installation and Maintenance Considerations:** Proper selection and installation of the **TLS030LB** are essential for maximizing its protective capabilities. Professionals should: - Match the fuse rating (30A) to the circuit’s nominal current to avoid nuisance tripping or inadequate protection. - Ensure compatibility with the fuse holder or panel, verifying dimensions and terminal types. - Inspect fuses regularly for signs of degradation, such as discoloration or corrosion, and replace them as part of a preventive maintenance schedule. - Follow manufacturer guidelines for replacement intervals, especially in high-temperature or high-vibration environments common in telecom facilities. By integrating the **Littelfuse TLS030LB** into your telecom power system, you gain a trusted solution that enhances system reliability, reduces maintenance costs, and protects your infrastructure from the costly consequences of electrical faults. Whether you’re upgrading legacy systems or deploying cutting-edge 5G networks, this fuse delivers the performance and peace of mind that telecom professionals demand.
  • 30A ampere rating for high-current telecom circuits
  • Fast-acting response to minimize downtime
  • High breaking capacity up to 100kA
  • Compact design for standard telecom fuse holders
  • UL 248-14 and IEC 60127-2 compliant

Specifications

Application
Telecommunications
Brand Name
Littelfuse
Current Rating
30 A
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 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
Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
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.
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in

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.