Littelfuse 0230007.MXP - SLO-BLO GLASS AXIAL 7A M-PK. The 2AG Slo-Blo® Fuses are available in cartridge form or with axial leads. 2AG Fuses providing the same performance characteristics as their 3AG counterpart, while occupying one-third the space.Features: 229 series 2AG fuses have time-delay of 313 series 3AG fuses in less than one-third of the space. They provide superior protection for inductive loads such as motors, transformers, and solenoids. Use whenever time-delay fuses are indicated. An indicating version is also available. 2AG indicating fuses instantly identify themselves upon opening by showing a discoloration of their glass bodies. Guesswork and time-consuming circuit testing is eliminated. This unique design offers the same quality performance characteristics as the standard 2AG fuse design.
Littelfuse

0230007.MXP

UPC: 079458920772

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Overview

The **Littelfuse 229 Series 2AG Slo-Blo® Glass Axial Fuse (SKU: 0230007.MXP)** delivers high-performance overcurrent protection in a compact, space-saving design engineered for critical inductive loads. As a leader in circuit protection solutions, Littelfuse leverages decades of expertise to provide fuses that combine reliability, precision, and innovation—ensuring your equipment operates safely under demanding conditions. This 7-ampere time-delay fuse is specifically designed to handle the unique challenges posed by inductive loads such as motors, transformers, and solenoids, where inrush currents can exceed steady-state ratings. Unlike standard fast-acting fuses, the Slo-Blo® design incorporates a deliberate time delay that allows brief current surges during startup or transient events, preventing nuisance openings while maintaining robust protection against sustained overloads or short circuits. One of the most compelling advantages of the 229 Series is its **compact 2AG form factor**, which delivers the same time-delay performance as a traditional 3AG fuse in less than one-third the space. This space efficiency is critical in modern electrical panels, control boxes, and compact machinery where every millimeter counts. Whether you're designing new equipment or retrofitting existing systems, the reduced footprint of the 2AG fuse allows for greater flexibility in layout and component placement without compromising on protection standards. A standout feature of this fuse is its **indicating capability**, available in select models. When the fuse opens due to an overcurrent event, the glass body discolors visibly, providing immediate visual confirmation of the fault. This eliminates the need for time-consuming circuit testing or multimeter checks, significantly reducing downtime during troubleshooting. For maintenance teams and engineers, this feature translates to faster diagnostics, minimized equipment idle time, and enhanced operational safety. The indicating version is particularly valuable in mission-critical applications such as HVAC systems, industrial automation, and renewable energy installations, where rapid fault identification is essential. Littelfuse’s Slo-Blo® fuses are trusted across a wide range of industries, including **manufacturing, automotive, aerospace, telecommunications, and renewable energy**, where reliable circuit protection is non-negotiable. The 229 Series is ideal for protecting: - **Motors and motor starters** – Handles high inrush currents during startup without nuisance tripping. - **Transformers** – Provides stable protection against overloads and secondary faults. - **Solenoids and relays** – Safeguards against inductive spikes during switching operations. - **Power supplies and converters** – Ensures stable operation in power distribution systems. - **Control panels and automation systems** – Offers compact, reliable protection in space-constrained environments. Installation is straightforward, with axial leads designed for through-hole mounting, making it compatible with standard PCB layouts and terminal blocks. The glass body construction not only provides visual indication but also allows for easy inspection of the fuse element, ensuring quality and consistency. Littelfuse’s rigorous testing and adherence to international standards (such as UL, CSA, and IEC) guarantee that these fuses meet the highest performance and safety benchmarks. With a global reputation for innovation and reliability, Littelfuse is the preferred partner for engineers and procurement professionals seeking circuit protection solutions that combine technical excellence with real-world practicality. Choose the **Littelfuse 229 Series 2AG Slo-Blo® Fuse** for a solution that delivers **superior protection, space efficiency, and operational clarity**—all in one compact, high-performance package. Whether you're protecting sensitive electronics or heavy-duty industrial equipment, this fuse ensures peace of mind with every application.
  • Compact 2AG form factor delivers 3AG performance in one-third the space
  • Time-delay design protects inductive loads from nuisance openings during startup
  • Indicating version provides visual confirmation of fuse status via glass discoloration
  • Axial leads enable easy through-hole mounting in PCBs and control panels
  • Trusted by industries including manufacturing, automotive, and renewable energy

Specifications

Application
electronic equipment & appliances
Brand Name
Littelfuse
Connection Type
Axial Leads
Current Rating
7 A
Material
Glass
Mounting Type
Through-Hole
Series
229
Series
229 series
Size
2AG
Special Features
Slo-Blo
Standard
UL Standard 248-14
Sub Brand
230 Series
Type
2AG 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 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.