H23003.5P

The **Littelfuse 229 Series 2AG Slo-Blo Fuse (SKU: H23003.5P)** delivers reliable time-delay protection for critical inductive loads in industrial, commercial, and automotive applications. Designed to replace larger 3AG fuses without compromising performance, this compact 2AG fuse occupies less than one-third the space while maintaining identical protection characteristics. Engineered for applications where transient inrush currents are common—such as motors, transformers, solenoids, and power supplies—the 229 Series Slo-Blo fuse ensures consistent operation by allowing brief overloads without nuisance tripping. This time-delay design is essential for protecting sensitive equipment from damage caused by startup surges while preventing false openings during normal transient conditions. **Key Features and Benefits:** - **Space-Saving 2AG Form Factor:** The 229 Series fuse leverages the compact 2AG (5x20mm) footprint, making it ideal for modern PCB layouts and tight enclosures where space is at a premium. Despite its smaller size, it delivers the same performance as a 3AG (6.3x32mm) fuse, enabling designers to optimize panel layouts without sacrificing protection. - **Superior Time-Delay Performance:** With a time-delay rating equivalent to the 313 Series 3AG fuses, this fuse is specifically engineered to handle inductive loads. It accommodates temporary inrush currents—common in motor starts or transformer energization—while providing robust overcurrent protection during fault conditions. This prevents unnecessary downtime and extends the lifespan of connected equipment. - **Dual Configuration Options:** Available in both standard and indicating versions, the 229 Series offers flexibility for diverse applications. The indicating variant features a unique glass body that discolors upon opening, providing immediate visual confirmation of a blown fuse. This eliminates the need for time-consuming circuit testing, reducing troubleshooting time and improving operational efficiency in critical systems. - **Rugged Glass Construction:** Housed in a durable glass body, the 229 Series fuse ensures reliable operation in harsh environments. The glass material provides excellent thermal stability and visibility, allowing technicians to inspect the fuse element for signs of degradation or failure. This construction also enhances the indicating feature’s effectiveness by making discoloration clearly visible. - **Industry-Tested Reliability:** Littelfuse, a global leader in circuit protection solutions, designs the 229 Series to meet stringent industrial standards. The fuse’s performance is validated through rigorous testing, ensuring consistent operation across a wide range of voltages and ambient conditions. This reliability is critical for applications in power distribution, HVAC systems, industrial machinery, and renewable energy installations. **Typical Applications:** The 229 Series Slo-Blo Fuse is widely used in applications where inductive loads generate transient currents. Common use cases include: - **Motor Protection:** Used in fractional horsepower motors, pumps, and fans to handle startup surges while protecting against overloads. - **Transformer and Solenoid Circuits:** Ideal for transformers, relays, and solenoid valves where inrush currents can exceed steady-state ratings. - **Power Supplies and Converters:** Provides overcurrent protection in switch-mode power supplies (SMPS), battery chargers, and DC-DC converters. - **Automotive and Transportation:** Suitable for vehicle electrical systems, including lighting circuits, heating systems, and auxiliary power units (APUs). - **Industrial Control Panels:** Used in PLCs, motor starters, and control circuits where space constraints and reliability are paramount. **Selection and Installation Guidelines:** When selecting a fuse for an application, professionals must consider the load type, inrush current characteristics, and environmental conditions. The 229 Series is optimized for time-delay applications, making it a superior choice over fast-acting fuses in inductive circuits. For installations, ensure the fuse is rated for the system voltage and current, and that the mounting configuration (axial leads or cartridge) matches the application’s requirements. The indicating version is particularly useful in hard-to-access panels or remote locations where quick fault identification is essential. **Why Choose Littelfuse?** Littelfuse has been a trusted name in circuit protection for over a century, with a reputation for innovation and quality. The 229 Series 2AG Slo-Blo Fuse exemplifies the company’s commitment to delivering high-performance solutions that address real-world challenges. Whether for industrial automation, renewable energy, or consumer electronics, Littelfuse fuses are engineered to meet the demands of modern electrical systems, ensuring safety, reliability, and longevity. With global distribution and technical support, Littelfuse provides the expertise and resources needed to implement robust protection strategies in any application.