Littelfuse H230003SP - SLO-BLO GLASS INDICATOR H-PACK 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

H230003SP

Alternate Item Number: 0230003.HXSP

UPC: 079458918519


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Overview

The **Littelfuse SLO-BLO GLASS INDICATOR H-PACK 3A 2AG fuse (SKU: H230003SP)** delivers superior time-delay circuit protection for inductive loads in a space-saving 229 series design. Engineered to replace bulkier 3AG fuses while maintaining identical performance characteristics, this compact fuse occupies less than one-third the space of traditional solutions—ideal for modern industrial applications where panel real estate is at a premium. The **indicating version** features a unique glass body that discolors upon opening, providing instant visual confirmation of a blown fuse to eliminate costly downtime and reduce troubleshooting efforts. Whether protecting motors, transformers, solenoids, or other inductive components, the SLO-BLO H-PACK fuse ensures reliable operation under inrush currents while adhering to stringent safety standards. **Key Features and Benefits:** - **Time-Delay Protection for Inductive Loads:** Engineered with a time-delay characteristic comparable to 313 series 3AG fuses, this 2AG fuse safely handles inrush currents typical of motors, transformers, and solenoids without nuisance tripping. The design prevents false openings during startup or transient conditions, ensuring continuous operation where momentary overloads are expected. - **Compact 229 Series Design:** Measuring significantly smaller than 3AG alternatives, the 2AG fuse fits into tight spaces while delivering the same high-performance protection. This space efficiency is critical for compact control panels, automotive systems, and consumer electronics where size constraints are a priority. - **Instant Visual Indication:** The indicating version of the SLO-BLO fuse features a glass body that discolors upon opening, providing immediate identification of a blown fuse. This eliminates the need for manual circuit testing, reducing diagnostic time by up to 80% and minimizing equipment downtime in critical applications. - **Superior Performance in Harsh Environments:** Littelfuse’s SLO-BLO fuses are built to withstand demanding industrial conditions, including vibration, temperature fluctuations, and electrical surges. The robust construction ensures long-term reliability, making them a trusted choice for applications in manufacturing, HVAC systems, and renewable energy installations. - **Versatile Mounting Options:** Available in cartridge form or with axial leads, the SLO-BLO H-PACK fuse accommodates a wide range of installation requirements. The H-PACK configuration simplifies bulk purchasing and inventory management for OEMs and MRO professionals. **Industry Applications:** The Littelfuse SLO-BLO GLASS INDICATOR H-PACK 3A 2AG fuse is a go-to solution for professionals across multiple sectors, including: - **Industrial Automation:** Protects motor starters, contactors, and PLC-controlled systems from overloads and short circuits. - **HVAC and Refrigeration:** Safeguards compressors, fans, and control circuits against inrush currents and transient spikes. - **Automotive and Transportation:** Ideal for battery management systems, lighting circuits, and auxiliary power units where space and reliability are critical. - **Renewable Energy:** Ensures safe operation of inverters, charge controllers, and grid-tied systems by managing fault currents in solar and wind power applications. - **Consumer Electronics:** Provides compact protection for power supplies, adapters, and control boards in appliances and smart devices. **Why Choose Littelfuse?** With over a century of innovation in circuit protection, Littelfuse is a globally recognized leader in fuse technology. The company’s SLO-BLO series is trusted by engineers and technicians worldwide for its precision, durability, and adherence to international safety standards (e.g., UL, IEC). Whether you’re designing a new system or maintaining legacy equipment, Littelfuse’s SLO-BLO GLASS INDICATOR H-PACK 3A 2AG fuse (SKU: H230003SP) offers a proven solution for reliable, space-efficient protection. Backed by comprehensive technical support and a global distribution network, Littelfuse ensures seamless integration and long-term performance for your most demanding applications. **Installation and Selection Considerations:** When specifying the SLO-BLO H-PACK fuse, professionals should evaluate: - **Current Rating:** The 3A rating is ideal for low-power inductive loads, but Littelfuse offers a full range of amperages to match specific requirements. - **Voltage Rating:** Ensure compatibility with system voltage (e.g., 125V, 250V) to prevent arcing or failure. - **Response Time:** The time-delay characteristic is essential for applications with high inrush currents, such as motors or transformers. - **Environmental Conditions:** Consider factors like temperature, humidity, and vibration to select the appropriate fuse variant. - **Indicating vs. Non-Indicating:** The glass indicator version is recommended for applications where rapid fault identification is critical to minimizing downtime. For engineers seeking a compact, high-performance fuse with visual indication, the Littelfuse SLO-BLO GLASS INDICATOR H-PACK 3A 2AG fuse delivers unmatched reliability and efficiency. Trusted by industry leaders, this solution combines innovation with practicality to protect your most valuable assets.
  • Time-delay protection for motors, transformers, and solenoids
  • Compact 229 series design occupies one-third the space of 3AG fuses
  • Instant visual indication via glass body discoloration upon opening
  • Superior performance in harsh industrial environments
  • Available in cartridge or axial lead configurations for versatile mounting

Specifications

Amperage Rating
200 Amps
Application
Telecom
Brand Name
Littelfuse
Color
Clear
Connection Type
Axial leads / Cartridge
Connection Type
Cartridge or Axial Leads
Current Rating
3 A
Material
Glass
Mounting Type
H-PACK
Series
229
Series
229 series
Size
2AG
Size
2AG (229 series)
Special Features
Same quality performance characteristics as the standard 2AG fuse design
Standard
UL Standard 248-14
Sub Brand
230 Series
Type
Glass Body Fuse

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.