The Littelfuse 03450603H is a shock-safe fuseholder designed for use with 3AG (1/4" x 1 1/4") or 5 x 20mm fuses. It's specifically engineered for printed circuit board (PCB) mounting, offering a secure and reliable solution for fuse protection in various industrial applications. The design adheres to IEC Standards 60127 and 60065, ensuring safety and performance. It features a fuse extractor type knob and is available with various approvals including Underwriters Laboratories, CSA, and VDE, making it suitable for a wide range of electrical systems.