Littelfuse 325007P SLO-BLO CERAMIC AXIAL LEADS 7A. The 3AB Slo-Blo® Fuse with ceramic body construction…

Name: Littelfuse 3AB Slo-Blo 7A ceramic axial lead fuse for high-current industrial protection, UL 248-14 compliant, RoHS lead-free.
Brand: Littelfuse
SKU: 325007P
Availability: InStock

Alternate Item Number: 0325007.VXP

UPC: 079458929324

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Overview

The **Littelfuse 3AB Slo-Blo 7A ceramic axial lead fuse (SKU: 325007P)** is a high-performance overcurrent protection solution engineered for demanding industrial applications where reliability and durability are critical. Designed with a **ceramic body construction**, this fuse delivers exceptional interrupting ratings and voltage handling capabilities, making it an ideal choice for circuits exposed to high current loads, transient surges, or harsh operating conditions. Unlike standard glass-body fuses, the ceramic construction ensures superior thermal stability, mechanical strength, and resistance to environmental stressors such as humidity, vibration, and temperature fluctuations—key advantages in industrial, automotive, and power distribution environments. **Key Features and Benefits:** - **High Interrupting Ratings:** The ceramic body enables the 3AB Slo-Blo fuse to safely interrupt high fault currents, reducing the risk of catastrophic failure in critical circuits. This is particularly valuable in applications such as motor controls, transformers, and power supplies where sudden overloads can occur. - **UL 248-14 Compliance:** Certified to meet **UL Standard 248-14**, the Littelfuse 3AB Slo-Blo fuse adheres to rigorous safety and performance benchmarks, ensuring consistent operation in compliance with North American electrical codes. This certification is essential for OEMs and system integrators who require third-party validation of product safety. - **Versatile Mounting Options:** Available in both **cartridge and axial lead formats**, the 3AB Slo-Blo fuse accommodates a wide range of installation configurations. The axial lead version (SKU: 325007P) is particularly well-suited for PCB-mounted applications or retrofitting into existing systems where space constraints or mounting preferences dictate the design. - **RoHS-Compliant and Lead-Free:** Manufactured without hazardous substances, this fuse meets **Restriction of Hazardous Substances (RoHS)** directives, aligning with global environmental regulations and sustainability goals. Its lead-free design also simplifies disposal and recycling processes, reducing long-term compliance burdens for end-users. - **Precision Time-Delay Characteristics:** The **Slo-Blo** designation indicates a time-delay fuse, which allows brief overloads (such as startup surges in motors or inrush currents in capacitors) to pass without nuisance tripping. This makes the 3AB Slo-Blo ideal for applications where temporary overcurrent conditions are common but sustained overloads must be interrupted to prevent damage. **Typical Applications:** The Littelfuse 3AB Slo-Blo 7A fuse is widely deployed across multiple industries where robust overcurrent protection is non-negotiable. In **industrial machinery**, it safeguards motors, transformers, and control panels from damage caused by short circuits or prolonged overloads. **Power distribution systems** rely on these fuses to isolate faulty branches without compromising the integrity of the entire network. **Automotive and transportation** applications, including battery management systems and charging infrastructure, benefit from the fuse’s ability to handle high inrush currents while maintaining fast response to fault conditions. Additionally, **telecommunications equipment**, **renewable energy systems**, and **medical devices** leverage the 3AB Slo-Blo’s reliability to protect sensitive electronics from transient events. **Why Choose Littelfuse?** As a global leader in circuit protection, **Littelfuse** has built a reputation for innovation, quality, and technical expertise spanning over a century. The company’s fuses, including the 3AB Slo-Blo series, are trusted by engineers and technicians worldwide for their **consistent performance, long service life, and adherence to international standards**. Littelfuse’s commitment to research and development ensures that its products evolve alongside technological advancements, providing solutions that address emerging challenges in power management, electrification, and sustainability. By selecting the 325007P fuse, professionals gain access to a **time-tested, high-reliability component** backed by comprehensive technical support and global distribution networks. **Installation and Selection Considerations:** When integrating the 3AB Slo-Blo 7A fuse into a system, professionals should evaluate the **maximum fault current** of the circuit to ensure the fuse’s interrupting rating exceeds the prospective fault level. The **time-delay characteristic** should also align with the application’s inrush current profile—while the fuse allows temporary overloads, it must still respond quickly enough to prevent thermal damage during sustained faults. For axial lead applications, proper soldering techniques and lead strain relief are critical to maintaining electrical integrity over time. Consulting Littelfuse’s **application notes and datasheets** can provide further guidance on derating, mounting, and compliance with local electrical codes. In summary, the **Littelfuse 3AB Slo-Blo 7A ceramic axial lead fuse** is a cornerstone component for engineers designing high-current protection into industrial, automotive, and power systems. Its combination of **ceramic durability, UL certification, time-delay performance, and environmental compliance** makes it a versatile and dependable choice for mission-critical applications. Whether protecting a motor drive, a power supply, or a renewable energy inverter, the 325007P fuse delivers the performance and peace of mind required in today’s safety-conscious and high-efficiency systems.

Ceramic body construction for superior thermal and mechanical stability
7A rating with high interrupting capacity for demanding applications
UL 248-14 certified for safety and compliance in industrial systems
Available in axial lead and cartridge formats for versatile installation
RoHS-compliant and lead-free design meets global environmental standards

Specifications

Amperage Rating	350 Amps
Application	Protection of Semiconductors
Brand Name	Littelfuse
Special Features	Very-Fast Acting
Standard	UL Recognized
Sub Brand	POWR-GARD LA Series
Type	Semiconductor Fuse

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E1062696

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C331156

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30323R

Fuse Block 600VAC 600VDC Class CC 30A 3-Pole Pressure Plate with Reinforced Clip

9F61BWW460

9F61 Size B Clips 1.6in

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.

PSX1XLUB0350

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170M3269

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135A965F01

A060AGH300

Frequently Asked Questions

What types of fuses does Littelfuse offer for industrial applications?

Littelfuse offers UL Class fuses, high-speed fuses, medium voltage fuses, 10 x 38 mm fuses, and solar fuses for industrial applications.

What are Littelfuse high-speed fuses used for?

High-speed fuses protect critical power semiconductor devices against short circuits in power conversion applications like inverters and variable-speed drives.

What is the voltage range for Littelfuse solar fuses?

Littelfuse offers solar fuses and holders up to 1500 Vdc for both high-current and low-current applications.

What protection do feeder protection relays offer?

Feeder protection relays protect circuits from overcurrent, ground faults, phase loss, overload, and other detrimental conditions.

What is the Industrial Shock-Block® GFCI designed for?

It is designed for people protection in industrial facilities and meets UL Standard 943C Class C and Class D.

What do Littelfuse voltage monitors protect against?

Voltage monitors provide protection against both supply line and load side faults when the motor is running.

How do arc-flash protection relays enhance safety?

These relays detect developing arc-flash incidents and send a trip signal to interrupt power before significant damage occurs.

What types of protection do Littelfuse motor protection relays offer?

They offer voltage monitors, current monitors, and Bluetooth-enhanced overload relays for low and medium voltage applications.

What is the purpose of Littelfuse Techline support?

Techline experts answer questions about product cross-references, general technical information, engineering drawings, and application assistance.

What applications are 10 x 38 mm fuses suitable for?

These fuses provide compact supplemental protection for a wide variety of applications, available in time-delay or fast-acting versions.

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.