Littelfuse NLS006 - NLS series fuses provide low cost protection for general-purpose feeder and branch circuits when available short circuit currents are less than 50,000 amperes. They replace all Class H fuses which have only a 10,000 ampere interrupting rating. They are suitable for use in many residential and smaller commercial and industrial applications.
Littelfuse

NLS006

Alternate Item Number: 0NLS006.T

UPC: 079458370584


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Minimum Qty: 10

Multiplier: 10

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Overview

The **Littelfuse NLS006** fuse is a high-performance, cost-effective solution designed for **general-purpose feeder and branch circuit protection** in applications where available short circuit currents do not exceed **50,000 amperes**. As a direct replacement for **Class H fuses**—which are limited to just 10,000 amperes of interrupting rating—the NLS series delivers superior safety and reliability without the need for costly system upgrades. Engineered by Littelfuse, a global leader in circuit protection technologies, the NLS006 fuse combines **durability, precision, and affordability**, making it an ideal choice for **residential wiring, smaller commercial installations, and light industrial environments**. **Key Features and Benefits:** - **Enhanced Interrupting Rating:** With a **50,000A interrupting rating**, the NLS006 provides robust protection against high fault currents, significantly reducing the risk of catastrophic equipment failure or fire hazards in feeder and branch circuits. - **Seamless Class H Replacement:** Designed to directly replace **Class H fuses**, the NLS006 eliminates compatibility concerns while offering **superior performance** in applications where higher fault currents are a concern. This upgrade path ensures compliance with modern safety standards without requiring extensive system modifications. - **Wide Application Versatility:** Suitable for **residential wiring systems**, **small commercial buildings**, and **light industrial facilities**, the NLS006 fuse is engineered to meet the demands of diverse electrical environments. Its compact design and standard sizing ensure easy integration into existing fuse panels and distribution boards. - **Cost-Effective Protection:** By providing **high-performance circuit protection at a competitive price point**, the NLS006 fuse helps reduce operational costs while maintaining the highest levels of safety and reliability. This makes it an economical choice for budget-conscious projects without compromising on quality. - **Compliance and Safety Assurance:** Littelfuse fuses, including the NLS series, are **UL Listed and meet industry standards**, ensuring compliance with **NFPA 70 (NEC) and other regulatory requirements**. Professionals can trust these fuses to deliver **consistent performance** in critical applications, from branch circuits in homes to distribution panels in commercial settings. **Typical Applications and Use Cases:** The **Littelfuse NLS006 fuse** is widely used in environments where **electrical systems require reliable overcurrent protection** but do not demand the extreme fault current handling of high-end industrial fuses. Common applications include: - **Residential electrical panels**, where it protects branch circuits from overloads and short circuits. - **Small commercial buildings**, such as offices, retail spaces, and light industrial workshops, where cost-effective yet robust protection is essential. - **Light industrial facilities**, including manufacturing plants with lower fault current levels, where the NLS006 provides a balance of performance and affordability. - **Renovation and retrofit projects**, where upgrading from outdated Class H fuses to the NLS series improves safety without requiring extensive system redesign. **Installation and Selection Considerations:** When selecting and installing the **Littelfuse NLS006 fuse**, professionals should consider the following best practices: - **Fault Current Analysis:** Ensure the available short circuit current in the system does not exceed **50,000 amperes**, as the NLS006 is designed for applications within this limit. - **Compatibility Verification:** Confirm that the fuse holder or panel is compatible with the NLS series dimensions and ratings to avoid installation issues. - **Code Compliance:** Verify that the installation meets **local electrical codes and standards**, such as the **National Electrical Code (NEC)**, to ensure safety and regulatory adherence. - **Manufacturer Reputation:** Littelfuse is a **trusted name in circuit protection**, with decades of experience in developing solutions for residential, commercial, and industrial applications. Their fuses are known for **reliability, precision engineering, and adherence to strict quality standards**, making them a preferred choice among electricians, engineers, and facility managers. **Why Choose Littelfuse for Circuit Protection?** Littelfuse has established itself as a **global leader in electrical protection**, offering a comprehensive portfolio of fuses, relays, and surge protection devices. The **NLS series**, including the **NLS006**, exemplifies the company’s commitment to **innovation, safety, and cost efficiency**. By choosing Littelfuse, professionals gain access to: - **Proven performance** in real-world applications, backed by extensive testing and certification. - **Technical support and expertise**, ensuring proper selection and installation for optimal system protection. - **A wide range of solutions** to meet diverse electrical protection needs, from low-voltage residential systems to high-performance industrial applications. Whether you are upgrading an existing system or designing a new installation, the **Littelfuse NLS006 fuse** provides a **reliable, economical, and high-performance** solution for feeder and branch circuit protection. Trust Littelfuse to deliver the **safety, durability, and value** your electrical systems deserve.
  • 50,000A interrupting rating for superior short circuit protection
  • Direct replacement for Class H fuses with enhanced safety
  • Cost-effective solution for residential, commercial, and light industrial applications
  • UL Listed and compliant with NEC and industry standards
  • Compact design for easy integration into existing fuse panels

Specifications

Application
General Purpose
Brand Name
Littelfuse
Series
NLS
Special Features
Economical/low interrupt
Standard
Standard 248-9 UL Listed/CSA
Sub Brand
POWR-GARD NLS Series
Type
Class K5
Package Weight (Imperial)
0.104 L
Package Weight (Metric)
47.060 g
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.