Littelfuse 229005SP - 229 SLO-BLO TYPE GLASS INDICATOR 5A. 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

229005SP

Alternate Item Number: 0229005.VXSP

UPC: 079458915013

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Minimum Qty: 5

Multiplier: 5

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Overview

The **Littelfuse 229005SP 2AG Slo-Blo® Fuse** is a high-performance, time-delay fuse engineered for superior protection of inductive loads in industrial, commercial, and OEM applications. Designed to replace bulkier 3AG fuses while occupying just one-third of the space, this compact 2AG fuse delivers the same reliable performance as its larger counterpart without sacrificing protection or durability. The 229005SP is ideal for circuits requiring time-delay characteristics, such as motors, transformers, solenoids, and other inductive components where temporary inrush currents are common. Its **5A rating** ensures precise overcurrent protection while preventing nuisance tripping during startup or transient conditions. **Key Features & Benefits:** - **Time-Delay Protection:** The Slo-Blo® design provides delayed response to accommodate temporary overloads, making it perfect for applications with high inrush currents like motor windings or transformer energization. This prevents false openings while still safeguarding against sustained faults. - **Compact 2AG Form Factor:** Measuring significantly smaller than traditional 3AG fuses, the 229005SP optimizes panel space and allows for higher component density in control panels, distribution boards, and machinery enclosures. - **Glass Indicator Version:** The indicating design instantly signals an open fuse with a visible discoloration in the glass body, eliminating the need for manual testing or circuit probing. This feature reduces troubleshooting time, minimizes downtime, and enhances operational efficiency in critical systems. - **Superior Inductive Load Handling:** Engineered for motors, solenoids, and transformers, the fuse’s time-delay characteristic ensures reliable operation under inductive stress while maintaining fast response to short circuits or severe overloads. - **Industry-Recognized Reliability:** Littelfuse, a global leader in circuit protection, designs the 229005SP to meet stringent UL and IEC standards, ensuring consistent performance across diverse industrial environments. Its robust construction resists vibration, temperature fluctuations, and electrical stress, making it a trusted choice for harsh operating conditions. **Typical Applications:** The **229005SP** is widely used in industries such as manufacturing, HVAC, automation, renewable energy, and transportation, where reliable protection of inductive loads is critical. Common applications include: - **Motor control circuits** (pumps, fans, conveyors) - **Transformers and power supplies** (industrial machinery, data centers) - **Solenoids and relays** (valves, actuators, contactors) - **Lighting ballasts and power distribution panels** - **Renewable energy systems** (wind turbines, solar inverters) **Why Choose Littelfuse?** With over a century of innovation in circuit protection, Littelfuse delivers fuses that combine precision engineering with real-world reliability. The **229005SP** exemplifies this commitment by offering a space-saving, high-performance solution for professionals who demand both protection and efficiency. Whether you're designing new equipment or retrofitting existing systems, this fuse ensures compliance with safety standards while optimizing system uptime. Its **indicating feature** further streamlines maintenance, reducing diagnostic errors and accelerating repairs. **Installation & Compatibility:** The **229005SP** is compatible with standard 2AG fuse holders and clips, making it a drop-in replacement for many existing systems. Professionals should ensure proper sizing based on load characteristics, as time-delay fuses like the Slo-Blo® are not suitable for all applications—consulting the manufacturer’s datasheet or an electrical engineer is recommended for critical systems. For optimal performance, install the fuse in a clean, dry environment and verify that the holder’s current rating matches or exceeds the fuse’s 5A specification. **Industry Trust & Standards Compliance:** Littelfuse fuses are trusted by engineers worldwide for their adherence to **UL 248, IEC 60127**, and other regional standards. The **229005SP**’s time-delay design aligns with best practices for protecting inductive loads, as outlined in **NEMA and IEEE guidelines**, ensuring compatibility with global electrical codes. Its compact form factor also supports compliance with space-constrained designs, a growing requirement in modern industrial automation and smart manufacturing systems. For professionals seeking a **reliable, space-efficient, and easily diagnosable** fuse solution, the **Littelfuse 229005SP 2AG Slo-Blo® Fuse** delivers unmatched performance and peace of mind. Trusted by OEMs and maintenance teams alike, this fuse is a cornerstone of robust circuit protection in today’s demanding electrical environments.
  • 5A time-delay fuse for inductive loads (motors, transformers, solenoids)
  • Compact 2AG form factor (1/3 the size of 3AG fuses)
  • Glass indicator version for instant visual identification of open fuses
  • Superior protection against temporary inrush currents and sustained faults
  • UL and IEC compliant, trusted by industrial professionals worldwide

Specifications

Amperage Rating
450 Amps
Application
Motor Control Centers
Brand Name
Littelfuse
Color
Clear/Glass
Color
Clear
Connection Type
Axial Leads/Cartridge
Connection Type
Cartridge/Axial Leads
Current Rating
5 A
Material
Glass
Mounting Type
Fuse Holder/Clip
Series
229 series
Size
2AG
Size
5x20mm (2AG)
Special Features
Time-Delay
Standard
Standard 248-8 UL Listed/CSA
Sub Brand
POWR-GARD JTD Series
Type
Class J
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.