Littelfuse 235003EP - FAST-ACTING 5X20MM GLASS FUSE 3EPA. 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

235003EP

Alternate Item Number: 0235003.VXEP

UPC: 079458908473


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Overview

The **Littelfuse 5x20mm 3EPA Glass Fuse (SKU: 235003EP)** is a high-performance, fast-acting overcurrent protection device engineered for industrial and electronic applications where rapid response to fault conditions is critical. Designed to meet the stringent **UL/CSA/ANCE 248** standards, this fuse delivers reliable and consistent protection across a wide range of operating environments. Its **medium-acting response** balances speed and selectivity, making it ideal for circuits requiring precise fault interruption without nuisance tripping. The **5x20mm glass body** provides excellent visibility for inspection and durability against mechanical stress, while the **RoHS-compliant, lead-free** construction ensures compliance with global environmental regulations. This fuse is available in both **cartridge and axial lead formats**, offering flexibility for diverse mounting requirements in power supplies, industrial machinery, control panels, and consumer electronics. The **cartridge-style** is commonly used in plug-in fuse holders, while the **axial lead version** is suited for direct soldering or PCB integration, reducing installation complexity. Professionals across industries—including telecommunications, automotive, renewable energy, and industrial automation—trust Littelfuse for fuses that meet the demands of high-reliability applications. **Key Features & Benefits:** - **Fast-Acting Response:** Minimizes downtime and protects sensitive components by interrupting faults quickly, reducing the risk of catastrophic damage. - **UL/CSA/ANCE 248 Compliance:** Meets international safety standards for overcurrent protection, ensuring compatibility with global electrical systems. - **RoHS & Lead-Free:** Aligns with environmental regulations, making it suitable for modern, sustainable designs. - **Versatile Mounting Options:** Available in cartridge and axial lead formats to accommodate various installation methods and space constraints. - **Glass Body Construction:** Provides visual inspection capability and robust protection against environmental factors like moisture and vibration. **Typical Applications:** - **Power Supplies:** Protects transformers, rectifiers, and DC-DC converters from overloads and short circuits. - **Industrial Equipment:** Used in motor controllers, PLCs, and automation systems to safeguard against transient surges. - **Consumer Electronics:** Ideal for TVs, computers, and home appliances where compact size and reliability are paramount. - **Telecommunications:** Ensures uptime in network infrastructure by preventing damage from power spikes. - **Renewable Energy Systems:** Provides overcurrent protection in solar inverters and wind turbine controllers. **Why Choose Littelfuse?** Littelfuse is a global leader in circuit protection, with over a century of innovation in fuse technology. The company’s **3EPA series** is trusted by engineers and technicians for its **consistent performance, long service life, and adherence to strict quality controls**. Whether you’re designing a new system or replacing an existing fuse, the **Littelfuse 5x20mm 3EPA** delivers the reliability and precision required for mission-critical applications. Its **compact 5x20mm size** makes it a space-efficient solution without compromising on protection, making it a preferred choice for modern electronic designs. For professionals seeking a **fast-acting, medium-response fuse** that balances speed, reliability, and compliance, the **Littelfuse 235003EP** is an optimal selection. Its **lead-free construction** and **global certifications** ensure seamless integration into both legacy and cutting-edge systems, while its **versatile formats** simplify installation across diverse applications. Trust Littelfuse to safeguard your circuits with unmatched performance and durability.
  • Fast-acting medium-response fuse for rapid fault interruption
  • UL/CSA/ANCE 248 compliant for global safety standards
  • RoHS-compliant, lead-free construction for environmental compliance
  • Available in cartridge and axial lead formats for versatile mounting
  • 5x20mm glass body for durability and visual inspection

Specifications

Amperage Rating
200 Amps
Application
General Purpose
Brand Name
Littelfuse
Connection Type
Cartridge or Axial Lead
Current Rating
3 A
Material
Glass
Series
235
Size
5x20mm
Special Features
Time-Delay
Standard
Standard 248-12 UL Listed/CSA
Sub Brand
POWR-GARD FLSR Series
Type
Class RK5
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

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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

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.