Littelfuse SLC008 - The unique design of Littelfuse’s compact SLC series Class G fuses provide additional time-delay over competitive products which increases system reliability. Compact Class G fuses were the first fuse series to approach midget fuse dimensions and meet NEC requirements for branch-circuit protection. The unique dimensions of SLC series Class G fuses prevents insertion of lower voltage fuses in Class G fuse holders. The fuse’s varying length prevents insertion of higher ampere rated fuses in fuse holders designed for lower ampere ratings. Class CC fuses are replacing Class G fuses in many new designs. Class CC fuses’ superior time delay plus higher voltage and interrupting ratings meet the needs of modern circuits. Littelfuse’s introduction of POWR-PRO® CCMR series fuses, with ratings up to 60 Amperes for providing branch circuit protection, are accelerating this trend.
Littelfuse

SLC008

Alternate Item Number: 0SLC008.T

UPC: 079458420630

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Overview

The Littelfuse SLC008, part of the compact SLC series, represents a significant advancement in Class G fuse technology, offering enhanced time-delay characteristics that directly translate to increased system reliability. Engineered to meet stringent NEC requirements for branch-circuit protection, these fuses are designed with unique dimensional properties that ensure proper application and safety. Unlike standard fuses, the compact dimensions of the SLC series approach those of midget fuses, providing a space-saving solution without compromising protective capabilities. A critical safety feature is the fuse's unique dimensions, which physically prevent the insertion of lower voltage fuses into Class G fuse holders, thereby mitigating the risk of electrical failure due to improper component matching. Furthermore, the varying length of the SLC series fuses is a deliberate design choice to prevent the installation of higher ampere-rated fuses into fuse holders specifically designed for lower ratings, a crucial safeguard for circuit integrity and equipment longevity. While Class G fuses have long been a reliable choice, the industry is increasingly seeing a shift towards Class CC fuses in new designs. This trend is driven by the superior time-delay performance, higher voltage ratings, and enhanced interrupting capabilities offered by Class CC technology, which are better suited to the demands of modern, complex electrical circuits. Littelfuse is at the forefront of this transition with its POWR-PRO® CCMR series fuses, which now offer ratings up to 60 Amperes, further accelerating the adoption of Class CC for robust branch circuit protection. The SLC008, however, remains an excellent choice for applications where Class G protection is specified or preferred, delivering dependable performance and the inherent safety features of its unique design. Key benefits of the Littelfuse SLC008 Class G fuse include: * **Enhanced Time-Delay:** Provides superior time-delay performance over competitive products, reducing nuisance tripping and improving operational continuity. * **Increased System Reliability:** The precise time-delay characteristics contribute to a more stable and dependable electrical system. * **Compact Design:** Offers a space-saving solution without sacrificing protective performance, ideal for densely packed enclosures. * **Safety Interlocks:** Unique dimensions prevent incorrect fuse insertion (lower voltage or higher ampere ratings), ensuring proper application and preventing potential hazards. * **NEC Compliance:** Meets the rigorous requirements for branch-circuit protection as mandated by the National Electrical Code. Applications for the Littelfuse SLC008 Class G fuse are diverse and include protection for HVAC systems, motor control circuits, lighting circuits, and general-purpose branch circuits in commercial and industrial settings. When selecting fuses, professionals prioritize reliability, safety, and compliance, all of which are hallmarks of the Littelfuse SLC series. The manufacturer's reputation for quality and innovation in circuit protection ensures that the SLC008 is a trusted component for critical electrical infrastructure. For applications requiring dependable and safe branch-circuit protection, especially where space is a consideration or Class G compliance is necessary, the Littelfuse SLC008 is an optimal solution.
  • Enhanced time-delay for superior system reliability and reduced nuisance tripping.
  • Compact design offers space-saving solutions for modern electrical panels.
  • Unique dimensions prevent insertion of lower voltage or higher ampere rated fuses.
  • Meets NEC requirements for safe and compliant branch-circuit protection.
  • Ideal for HVAC, motor control, and general industrial/commercial applications.

Specifications

Application
Branch Circuit
Brand Name
Littelfuse
Series
SLC series Class G
Size
Compact (midget fuse dimensions)
Special Features
Time-Delay
Standard
Standard 248-5 UL Listed/CSA
Sub Brand
POWR-GARD SLC Series
Type
Class 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 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.