Littelfuse 229001SP - 229 SLO-BLO TYPE GLASS INDICATOR 1A. 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

229001SP

Alternate Item Number: 0229001.VXSP

UPC: 079458914894

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Overview

The **Littelfuse 229001SP 229 Series 2AG Slo-Blo® Glass Indicator Fuse** delivers reliable time-delay protection for critical industrial applications where inductive loads are present. Designed as a compact alternative to traditional 3AG fuses, this 1A fuse occupies less than one-third the space while maintaining identical performance characteristics, making it ideal for space-constrained panels and control systems. The **2AG cartridge or axial lead configuration** ensures compatibility with a wide range of equipment, from motor starters to power supplies and control circuits. **Key Features & Benefits:** - **Superior Time-Delay Protection:** Engineered for inductive loads such as motors, transformers, and solenoids, the 229 Series 2AG fuse prevents nuisance tripping by allowing brief overloads during startup or transient conditions. This is critical in applications where sudden current surges are common, such as HVAC systems, industrial machinery, and automation equipment. - **Instant Visual Indication:** The **indicating version** (229001SP) features a discolored glass body upon opening, providing immediate visual confirmation of a blown fuse. This eliminates the need for time-consuming circuit testing, reducing troubleshooting time and minimizing costly downtime in production environments. - **Space-Efficient Design:** With a **2AG size**, this fuse is significantly smaller than 3AG alternatives, allowing for higher component density in control panels and electrical enclosures. This is particularly valuable in modern, compact industrial equipment where space optimization is essential. - **Versatile Mounting Options:** Available in **cartridge or axial lead configurations**, the 229 Series 2AG fuse accommodates diverse installation requirements. Cartridge fuses are ideal for fuse blocks and panels, while axial leads provide flexibility for direct soldering or wire connections in custom assemblies. - **Trusted Littelfuse Quality:** Littelfuse is a global leader in circuit protection, renowned for its rigorous testing and reliability. The **229 Series 2AG fuses** are manufactured to meet stringent industrial standards, ensuring consistent performance in harsh environments and long-term durability. **Typical Applications:** - **Motor Protection:** Used in fractional horsepower motors, pumps, and fans where inrush currents require time-delay characteristics to avoid false trips. - **Transformer & Solenoid Circuits:** Provides reliable protection for transformers and solenoids in control panels, relays, and industrial automation systems. - **Power Supplies & Control Systems:** Ideal for DC power supplies, PLCs, and other sensitive electronics where transient overloads are common. - **HVAC & Building Automation:** Ensures safe operation of compressors, contactors, and other inductive loads in heating, ventilation, and air conditioning systems. - **Renewable Energy Systems:** Suitable for solar inverters, wind turbine controllers, and battery management systems where inductive loads are prevalent. **Why Choose Littelfuse?** Littelfuse has been a pioneer in circuit protection for over a century, supplying solutions to industries ranging from automotive and aerospace to industrial automation and renewable energy. The **229 Series 2AG Slo-Blo® Glass Indicator Fuse** exemplifies the company’s commitment to innovation, reliability, and performance. Whether you’re designing a new control panel or replacing a blown fuse in an existing system, the 229001SP ensures **fast, accurate protection with minimal downtime**—backed by Littelfuse’s industry-leading warranty and technical support. **Installation & Compatibility Notes:** - **Voltage Rating:** Ensure the fuse’s voltage rating matches or exceeds the system voltage (typically 250V or 32V DC, depending on the specific model). - **Mounting:** Cartridge fuses require a compatible fuse holder, while axial leads can be soldered or crimped to terminals. - **Replacement:** Always replace with the same type and rating to maintain circuit integrity and safety compliance. For engineers, technicians, and procurement professionals seeking a **compact, high-performance time-delay fuse** with **instant indication**, the Littelfuse 229001SP 229 Series 2AG Slo-Blo® Glass Indicator Fuse is the optimal choice. Trust Littelfuse to protect your critical industrial applications with precision and reliability.
  • 1A time-delay protection for inductive loads (motors, transformers, solenoids)
  • Compact 2AG size occupies less than 1/3 the space of 3AG fuses
  • Instant visual indication upon opening (discolored glass body)
  • Available in cartridge or axial lead configurations for versatile mounting
  • Trusted Littelfuse quality with industry-leading reliability and support

Specifications

Amperage Rating
200 Amps
Application
Motor Control Centers
Brand Name
Littelfuse
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.