Littelfuse 0312020.MXP - FAST-ACTING TYPE GLASS M-PACK 20A. The 3AG Fast-Acting Fuse solves a broad range of application requirements while offering reliable performance and cost-effective 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

0312020.MXP

UPC: 079458100082


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Minimum Qty: 1000

Multiplier: 1000

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Overview

The **Littelfuse 0312020.MXP 3AG Fast-Acting Glass Fuse** is a precision-engineered circuit protection solution designed to safeguard industrial and electrical systems from overcurrent conditions. As a **20A fast-acting fuse**, it provides rapid response to fault currents, preventing damage to sensitive equipment and ensuring operational reliability in demanding environments. Manufactured by **Littelfuse**, a global leader in circuit protection technologies, this fuse combines **UL Standard 248-14 compliance** with **RoHS and lead-free construction**, meeting the highest industry standards for safety and environmental responsibility. **Key Features and Benefits:** - **Fast-Acting Performance:** Engineered for quick response to overcurrent events, the **0312020.MXP** minimizes downtime and protects critical components in industrial machinery, power distribution systems, and control panels. Its **3AG (3AG/5x20mm) cartridge design** ensures compatibility with a wide range of fuse holders and panels. - **Versatile Mounting Options:** Available in **cartridge and axial lead formats**, this fuse adapts to diverse installation requirements. The **axial lead version** is ideal for PCB-mounted applications, while the **cartridge format** suits panel-mounted or DIN-rail systems, offering flexibility for engineers and technicians. - **Reliable and Compliant:** Certified to **UL 248-14**, the fuse meets stringent safety and performance criteria for circuit protection. Its **RoHS compliance** and **lead-free construction** align with modern environmental regulations, making it a preferred choice for manufacturers prioritizing sustainability without compromising reliability. - **Industry-Tested Durability:** Littelfuse’s **3AG fast-acting fuses** are trusted across industries, including **automotive, telecommunications, renewable energy, and industrial automation**. Their robust glass body construction resists shock and vibration, ensuring consistent performance in harsh operating conditions. - **Cost-Effective Protection:** By preventing catastrophic failures and reducing equipment damage, the **0312020.MXP** delivers long-term cost savings. Its **high interrupting rating** and **low let-through current** make it an economical choice for protecting sensitive electronics and high-power systems. **Typical Applications:** The **Littelfuse 20A 3AG Fast-Acting Glass Fuse** is widely used in: - **Industrial Control Panels:** Protecting PLCs, motor starters, and variable frequency drives (VFDs) from overcurrent events. - **Power Distribution Systems:** Safeguarding transformers, switchgear, and distribution boards in commercial and industrial facilities. - **Renewable Energy Systems:** Serving as a critical component in solar inverters, wind turbine controllers, and battery management systems. - **Telecommunications Equipment:** Ensuring reliable operation of network infrastructure, including routers, switches, and base stations. - **Automotive and Transportation:** Providing circuit protection in vehicle charging systems, battery management, and auxiliary power units (APUs). **Selection and Installation Guidelines:** When selecting a fuse for your application, consider the **fuse’s ampere rating, voltage rating, and interrupting capacity**. The **20A rating** of the **0312020.MXP** makes it suitable for circuits requiring moderate current protection, while its **fast-acting characteristic** ensures rapid response to faults. For installation, ensure proper **fuse holder compatibility** and follow manufacturer guidelines for **mounting orientation and clearance**. Regular inspection of the fuse for signs of damage or degradation is recommended to maintain system reliability. **Why Choose Littelfuse?** With over **100 years of innovation** in circuit protection, Littelfuse is a trusted name in the electrical and industrial sectors. The company’s **global manufacturing footprint**, **rigorous quality control**, and **commitment to research and development** ensure that products like the **0312020.MXP** deliver unmatched performance and reliability. Whether you’re designing a new system or maintaining existing infrastructure, Littelfuse’s **fast-acting fuses** provide the peace of mind that comes from using industry-leading technology. **Order Today for Reliable Circuit Protection:** The **Littelfuse 0312020.MXP 3AG Fast-Acting Glass Fuse** is available in multiple packaging options to suit your procurement needs. Trust in Littelfuse’s expertise to protect your critical systems with a fuse that combines **speed, reliability, and compliance** in a single, cost-effective package.
  • 20A fast-acting fuse for rapid overcurrent protection
  • UL Standard 248-14 compliant for safety and reliability
  • Available in cartridge and axial lead formats for versatile mounting
  • RoHS compliant and lead-free construction for environmental sustainability
  • Trusted by industries like automotive, telecommunications, and renewable energy

Specifications

Amperage Rating
4 Amps
Application
electronic equipment & appliances
Brand Name
Littelfuse
Current Rating
20 A
Material
Glass
Series
3AG
Size
3AG/5x20mm
Special Features
Slo-Blo
Standard
UL/CSA/ANCE 248 Standard
Sub Brand
239 Series
Type
5 x 20 mm UL/CSA Slo-Blo
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.