Littelfuse H315020P - SLO-BLO GLASS AXIAL H-PACK 20A. The 3AG Slo-Blo® fuse solves a broad range of application requirements while offering reliable performance and costeffective circuit protection. Features: In accordance with UL Standard 248-14. Available in cartridge and axial lead format and with various forming dimensions. RoHS compliant and Lead-free.
Littelfuse

H315020P

Alternate Item Number: 0315020.HXP

UPC: 079458927818


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Minimum Qty: 100

Multiplier: 100

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Overview

The Littelfuse 3AG Slo-Blo® fuse, SKU H315020P, represents a cornerstone of reliable and cost-effective circuit protection for a diverse array of industrial and electronic applications. Engineered to meet the stringent requirements of UL Standard 248-14, this 20A glass cartridge fuse with axial leads offers dependable performance, safeguarding sensitive equipment from overcurrent and short-circuit conditions. Its 3AG form factor, combined with axial leads, ensures straightforward integration into a wide range of existing and new circuit designs, simplifying installation and maintenance processes for engineers and technicians. The Littelfuse 3AG Slo-Blo series is renowned for its robust construction and consistent performance characteristics. The glass body construction allows for visual inspection of the fuse element, a critical feature in troubleshooting and maintenance scenarios. This fuse is specifically designed to "slowly blow" or "slo-blo," meaning it can withstand temporary, harmless inrush currents common in many electrical systems, such as those found in motor startups or power supply energization, without nuisance tripping. However, it will reliably interrupt the circuit during sustained overcurrents or dangerous short circuits, thereby preventing damage to downstream components, reducing downtime, and enhancing overall system safety. Key features and benefits of the Littelfuse H315020P include: * **UL 248-14 Compliance:** Meets rigorous safety and performance standards for fuses. * **20A Current Rating:** Suitable for applications requiring moderate current handling capacity. * **3AG Size & Axial Leads:** Offers a standard form factor and convenient mounting options. * **Glass Construction:** Facilitates visual inspection and provides excellent dielectric properties. * **Slo-Blo® Design:** Accommodates inrush currents while providing overcurrent protection. * **RoHS Compliant & Lead-Free:** Adheres to modern environmental regulations, crucial for global market access and sustainable manufacturing. This fuse is an ideal choice for applications including, but not limited to, power supplies, industrial control panels, machinery, HVAC systems, and various electronic devices where reliable overcurrent protection is paramount. The Littelfuse brand is synonymous with quality and innovation in circuit protection, and the 3AG Slo-Blo series exemplifies this commitment. By selecting the H315020P, you are investing in a proven solution that ensures the longevity and operational integrity of your electrical systems. Its cost-effectiveness further solidifies its position as a preferred component for both original equipment manufacturers (OEMs) and maintenance professionals seeking dependable protection without compromising budget. When specifying circuit protection, the Littelfuse 3AG Slo-Blo 20A axial lead fuse (H315020P) stands out for its combination of compliance, performance, and value. Its design addresses the critical need for protection against electrical faults, contributing to safer working environments and more resilient equipment. The axial lead format is particularly advantageous for through-hole mounting on printed circuit boards (PCBs) or for use in fuse clips, offering flexibility in design and assembly. The inherent reliability of Littelfuse products ensures that this fuse will perform as expected, providing peace of mind for critical applications.
  • Littelfuse 3AG Slo-Blo® fuse with 20A current rating.
  • Axial lead format for easy integration and mounting.
  • Glass body construction for visual inspection and durability.
  • Compliant with UL Standard 248-14 for assured performance.
  • RoHS compliant and lead-free for environmental responsibility.

Specifications

Amperage Rating
20 AMPS
Application
NA
Brand Name
Littelfuse
Special Features
Available in cartridge and axial lead format
Standard
UL Standard 248-14
Sub Brand
315 Series
Type
Slo-Blo Fuse
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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

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Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

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9F61 Size B Clips 1.6in

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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.