Littelfuse H235004P - FAST-ACTING GLASS FUSE H-PACK 4PA. 5x20mm medium-acting glass body fuse designed to UL specification. Features: Designed to UL/CSA/ANCE 248 Standard. Available in cartridge and axial lead format RoHS compliant and lead-free.
Littelfuse

H235004P

Alternate Item Number: 0235004.HXP

UPC: 079458908480


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Minimum Qty: 100

Multiplier: 100

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Overview

The **Littelfuse H235004P** is a high-performance, fast-acting glass fuse designed to deliver precise overcurrent protection in demanding industrial and electronic environments. As part of Littelfuse’s trusted H-PACK 4PA series, this **5x20mm medium-acting fuse** meets rigorous **UL/CSA/ANCE 248 standards**, ensuring compliance with global safety certifications for power distribution, control systems, and sensitive electronics. Engineered with a durable glass body, the H235004P provides consistent performance under transient overload conditions, making it ideal for applications where rapid response to fault currents is critical. **Key Features and Benefits:** - **Fast-Acting Protection:** The H235004P responds swiftly to overcurrent events, minimizing damage to downstream components and reducing downtime in critical systems. This makes it particularly valuable in power supplies, motor drives, and industrial control panels where reliability is non-negotiable. - **Dual Format Availability:** Available in both **cartridge and axial lead configurations**, the H235004P offers installation flexibility to suit diverse panel layouts and wiring requirements. This versatility simplifies integration into existing designs while accommodating new system builds. - **Global Compliance:** Fully compliant with **UL 248, CSA C22.2 No. 248, and ANCE 248 standards**, the H235004P ensures seamless adoption in North American and international markets. Its adherence to these stringent benchmarks guarantees compatibility with a wide range of industrial equipment and regulatory frameworks. - **Environmentally Responsible Design:** As a **RoHS-compliant and lead-free** solution, the H235004P aligns with modern sustainability initiatives and regulatory requirements. This makes it an excellent choice for manufacturers prioritizing eco-friendly components without compromising on performance. - **Robust Construction:** The **glass body** of the H235004P provides superior thermal and mechanical stability, resisting cracking or degradation under harsh operating conditions. This durability extends the fuse’s operational lifespan, reducing maintenance costs and enhancing system longevity. **Industry Applications:** The Littelfuse H235004P is a versatile protection solution widely used across multiple sectors, including: - **Industrial Automation:** Safeguards PLCs, sensors, and motor controllers from overcurrent events in factory automation systems. - **Power Supplies:** Protects sensitive electronics in switch-mode power supplies (SMPS), UPS systems, and battery chargers. - **Consumer Electronics:** Ideal for use in appliances, LED lighting systems, and smart home devices where compact size and reliability are essential. - **Telecommunications:** Ensures stable operation in network infrastructure, including routers, switches, and base stations. - **Renewable Energy:** Provides critical protection in solar inverters, wind turbine controllers, and energy storage systems. **Selection and Installation Considerations:** When choosing a fuse for your application, consider the **interrupting rating**, **voltage rating**, and **response time** to match the fuse to the system’s requirements. The H235004P’s **medium-acting** characteristic strikes a balance between fast response and nuisance tripping prevention, making it suitable for circuits where moderate inrush currents are present. For installation, ensure proper **clearance** and **mounting orientation** to maintain optimal thermal dissipation and prevent mechanical stress on the fuse body. **Why Choose Littelfuse?** With over a century of innovation in circuit protection, Littelfuse is a globally recognized leader in fuse technology. The company’s products are trusted by engineers and manufacturers worldwide for their **precision, reliability, and adherence to international standards**. The H235004P exemplifies this commitment, offering a cost-effective yet high-performance solution for protecting critical infrastructure. Whether you’re designing a new system or retrofitting an existing one, the Littelfuse H235004P delivers the peace of mind that comes from using a proven, high-quality component.
  • Fast-acting 5x20mm glass fuse for precise overcurrent protection
  • UL/CSA/ANCE 248 compliant for global market compatibility
  • Available in cartridge and axial lead formats for installation flexibility
  • RoHS compliant and lead-free for environmental sustainability
  • Durable glass body for thermal and mechanical stability

Specifications

Amperage Rating
4 Amps
Application
protection in appliance or utilization equipment
Brand Name
Littelfuse
Connection Type
Cartridge/Axial Lead
Current Rating
4 A
Material
Glass
Series
H-PACK 4PA
Size
5x20mm
Special Features
Fast-Acting
Standard
RoHS
Sub Brand
235 Series
Type
Glass Body Fuse
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

What technical support resources does Littelfuse offer?

Littelfuse offers a Techline with technical experts who can provide product cross references, general technical information, engineering drawings, and application assistance. They can be contacted at 1-800-TEC-FUSE or [email protected].

What types of technical products does Littelfuse manufacture?

Littelfuse manufactures a wide range of industrial electrical protection products including UL Class fuses, high-speed fuses, medium voltage fuses, solar fuses, fuse blocks, protection relays, ground-fault protection relays, and motor protection devices.

How can distributors access Littelfuse product information?

Distributors can access product information through multiple resources including Littelfuse University, Digital Marketing Assets portal, RepFiles mobile app, and the Littelfuse Business Center website.

How can distributors order Littelfuse literature and materials?

Distributors can order print literature and marketing materials directly from the Littelfuse Business Center or by contacting their local sales representative. Digital copies can be downloaded from the Littelfuse Digital Asset portal.

What marketing support does Littelfuse provide to distributors?

Littelfuse offers a Marketing to Marketing program that includes co-branded email campaigns, content sharing, marketing tools, product launch support, and partner planning meetings to help distributors grow sales.

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.