Littelfuse 229003SP - 229 SLO-BLO TYPE GLASS INDICATOR 3A. 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

229003SP

Alternate Item Number: 0229003.VXSP

UPC: 079458914955

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Overview

The Littelfuse 229003SP, part of the 229 Series, represents a significant advancement in compact overcurrent protection, specifically engineered for demanding industrial applications. This 2AG Slo-Blo® fuse delivers reliable time-delay performance, offering superior protection for inductive loads such as motors, transformers, and solenoids. Its innovative design provides the same critical time-delay characteristics as the larger 3AG series fuses, but in less than one-third of the physical space. This space-saving advantage is invaluable in modern equipment designs where component density is paramount. The "Slo-Blo®" designation signifies its time-delay capability, meaning it can withstand temporary inrush currents common to inductive loads without nuisance tripping, while still providing rapid interruption of sustained overcurrents that could damage sensitive equipment. This makes the 229003SP an ideal choice for applications where precise and dependable protection is essential. A standout feature of this particular model, the 229003SP, is its integrated glass indicator. Upon activation due to an overcurrent event, the glass body of the fuse undergoes a visible discoloration. This immediate visual cue eliminates the need for time-consuming and often frustrating circuit testing to identify a blown fuse. Technicians can quickly pinpoint the fault, reducing downtime and improving operational efficiency. This indicating functionality is a critical benefit in environments where rapid troubleshooting is a priority. Key benefits and features of the Littelfuse 229003SP include: * **Compact 2AG Form Factor:** Occupies significantly less space than traditional 3AG fuses, enabling smaller and more densely packed equipment designs. * **Time-Delay Performance:** Specifically designed to handle the inrush currents of inductive loads like motors, transformers, and solenoids, preventing nuisance tripping. * **Superior Protection:** Offers robust protection against damaging overcurrents, safeguarding valuable industrial components. * **Integrated Glass Indicator:** Provides instant visual confirmation of a blown fuse, drastically reducing troubleshooting time and effort. * **High Reliability:** Manufactured by Littelfuse, a globally recognized leader in circuit protection, ensuring consistent quality and performance. When selecting fuses for inductive loads, the time-delay characteristic is non-negotiable. The 229003SP fuse meets this requirement with exceptional efficiency and space savings. Its application extends across a wide range of industrial sectors, including manufacturing automation, power supplies, control systems, and any scenario where inductive components are prevalent and reliable circuit protection is a must. Trust Littelfuse for your critical protection needs, and leverage the advanced design of the 229 Series to enhance the performance and maintainability of your equipment.
  • Littelfuse 229 Series 2AG Slo-Blo® fuse with time-delay characteristics.
  • 3A current rating, ideal for protecting inductive loads like motors and transformers.
  • Compact 2AG form factor occupies less than one-third the space of 3AG fuses.
  • Integrated glass indicator discolors upon opening for instant fault identification.
  • Ensures reliable overcurrent protection, reducing downtime and simplifying troubleshooting.

Specifications

Amperage Rating
300 Amps
Application
Motor Control Centers
Brand Name
Littelfuse
Color
Clear
Current Rating
3 A
Material
Glass
Series
229 series
Size
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.