Littelfuse KLK030S - Fast-acting, high-interrupting capacity, current-limiting type fuse. Especially suited for control circuits, street lighting, H.I.D. lighting, computers, and other applications without high inrush currents.
Littelfuse

KLK030S

Alternate Item Number: 0KLK030.TS

UPC: 079458189742

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Overview

The Littelfuse KLK030S fuse (SKU: KLK030S) stands as a premier solution for critical circuit protection, engineered for applications demanding rapid response and robust overcurrent safeguarding. As a fast-acting, high-interrupting capacity, current-limiting type fuse, the KLK030S is specifically designed to excel in environments where precision and reliability are paramount. Its advanced design effectively mitigates damage from short circuits and severe overloads by quickly isolating the faulty circuit, thereby preserving the integrity of connected equipment and systems. This particular fuse is exceptionally well-suited for a range of specialized applications. It is an ideal choice for control circuits, where sensitive electronic components require dependable protection against transient surges and faults. Furthermore, its capabilities extend to lighting applications, including street lighting and High-Intensity Discharge (HID) lighting systems, where consistent and uninterrupted operation is crucial for public safety and infrastructure. The KLK030S also finds utility in computer systems and other electronic devices that may not experience significant inrush currents, ensuring efficient and safe operation without unnecessary tripping. The inherent fast-acting nature of the KLK030S fuse means it reacts instantaneously to overcurrent events, offering a superior level of protection compared to slower-acting fuses. This rapid response is critical in preventing cascading failures and minimizing downtime. Coupled with its high interrupting capacity, the fuse can safely absorb and dissipate the energy released during a fault, preventing dangerous arc flashes and ensuring personnel safety. The current-limiting design further enhances safety by restricting the peak let-through current to a level well below the prospective fault current. Littelfuse, a globally recognized leader in circuit protection, brings its extensive expertise and commitment to quality to the KLK030S. Manufacturers and engineers trust Littelfuse products for their consistent performance, durability, and adherence to stringent industry standards. The KLK030S embodies this trust, offering a dependable component that contributes to the overall reliability and longevity of the systems it protects. Its selection for applications like control circuits, street lighting, HID lighting, and computers underscores its versatility and effectiveness in diverse industrial and commercial settings. When specifying protection for circuits with low inrush currents, the KLK030S provides a targeted and highly effective solution, ensuring operational continuity and safeguarding valuable assets. Key benefits of the Littelfuse KLK030S fuse include: * **Rapid Fault Interruption:** Minimizes damage to sensitive equipment by reacting swiftly to overcurrents. * **High Interrupting Capacity:** Safely dissipates fault energy, enhancing system and personnel safety. * **Current-Limiting Design:** Restricts peak let-through current, providing superior protection. * **Specialized Application Suitability:** Ideal for control circuits, various lighting types, and electronics with low inrush. * **Trusted Manufacturer:** Backed by the reputation and quality of Littelfuse, a leader in circuit protection.
  • Fast-acting, current-limiting fuse for rapid overcurrent protection.
  • High interrupting capacity ensures safe fault energy dissipation.
  • Specifically designed for control circuits, street lighting, and HID lighting.
  • Suitable for computers and applications with low inrush currents.
  • Manufactured by Littelfuse, a trusted leader in circuit protection.

Specifications

Application
control circuits
Brand Name
Littelfuse
Interrupt Rating
100;50 kA;kA
Series
KLK
Special Features
RoHS
Sub Brand
KLK Series
Type
Fast-Acting
Voltage Rating
600 VAC
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.