Littelfuse H239002EP - SLO-BLO GLASS BODY H-PACK 2A AXIAL. 5x20mm time-Lag glass body cartridge fuse designed to JL specification. Features: Designed to UL/CSA/ANCE 248 Standard. Available in cartridge and axial lead format RoHS compliant and lead-free.
Littelfuse

H239002EP

Alternate Item Number: 0239002.HXEP

UPC: 079458909708


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Overview

The Littelfuse SLO-BLO 2A axial glass body fuse, SKU H239002EP, represents a critical component for reliable overcurrent protection in a wide array of industrial and electronic applications. Engineered to meet stringent UL, CSA, and ANCE 248 standards, this 5x20mm time-lag cartridge fuse is designed for demanding environments where precise and dependable circuit interruption is paramount. Its glass body construction offers excellent visibility of the fuse element, facilitating quick visual inspection and troubleshooting. The time-lag characteristic of this SLO-BLO fuse is a key differentiator, providing enhanced protection against nuisance tripping caused by temporary inrush currents or transient surges. This makes it an ideal choice for protecting sensitive electronic components, power supplies, and control systems that might otherwise be damaged by short-duration overloads. The axial lead format ensures straightforward integration into printed circuit boards (PCBs) and other electronic assemblies, simplifying the design and manufacturing process for engineers and technicians. Littelfuse is a globally recognized leader in circuit protection, and the SLO-BLO series exemplifies their commitment to quality and performance. This particular 2A fuse is manufactured with a focus on durability and consistent operation, ensuring it performs as expected throughout its operational lifespan. Its RoHS compliance and lead-free construction align with modern environmental regulations and manufacturing practices, making it a responsible choice for global product deployment. Key features and benefits of the Littelfuse SLO-BLO 2A axial glass body fuse include: * **Time-Lag Operation:** Effectively handles transient surges without unnecessary interruption, safeguarding sensitive equipment. * **UL/CSA/ANCE 248 Compliance:** Meets rigorous international safety and performance standards, ensuring reliability and safety. * **Glass Body Construction:** Allows for easy visual inspection of the fuse element. * **Axial Lead Format:** Designed for convenient mounting on PCBs and integration into electronic circuits. * **RoHS Compliant & Lead-Free:** Adheres to environmental directives for sustainable manufacturing. * **2A Current Rating:** Suitable for a variety of applications requiring moderate overcurrent protection. This fuse is an essential component in sectors such as telecommunications, industrial automation, consumer electronics, and power distribution. Its robust design and adherence to international standards make it a trusted solution for engineers seeking to ensure the longevity and safety of their electronic designs. When selecting overcurrent protection, the Littelfuse SLO-BLO series offers a proven track record of performance and reliability, backed by a manufacturer with decades of expertise in circuit protection technology.
  • Littelfuse SLO-BLO 2A time-lag fuse with glass body
  • 5x20mm cartridge fuse with axial lead format
  • Designed to UL/CSA/ANCE 248 standards for reliable protection
  • RoHS compliant and lead-free for environmental responsibility
  • Ideal for sensitive electronics and industrial applications requiring transient surge protection

Specifications

Amperage Rating
2 Amps
Application
protection in appliance or utilization equipment
Brand Name
Littelfuse
Connection Type
Axial Lead
Current Rating
2 A
Material
Glass
Mounting Type
Axial
Series
SLO-BLO
Size
5x20mm
Special Features
Time-Delay
Standard
UL/CSA/ANCE 248
Sub Brand
239 Series
Type
Slo Blo
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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.