The part number **0031.1663** refers to a high-quality **fuse holder** manufactured by **Schurter**, a leading Swiss manufacturer of electronic components. This specific part belongs to the **FEU series**. --- ### 1. Technical Specifications The 0031.1663 is a panel-mount fuse holder designed for robustness and safety in industrial and commercial applications. | Feature | Specification | | :--- | :--- | | **Manufacturer** | Schurter | | **Mounting Type** | Panel Mount (Front Side) | | **Fuse Size Accepted** | 5 x 20 mm | | **Rated Voltage** | 250 VAC (VDE), 600 VAC/DC (UL/CSA) | | **Rated Current** | 10 A (VDE), 16 A (UL/CSA) | | **Degree of Protection** | IP 40 | | **Terminal Type** | Solder or Quick-Connect (4.8 x 0.5 mm) | | **Cap Type** | Fingergrip (Screw-on) | --- ### 2. Key Components & Materials * **Housing:** Made of Thermoplastic (UL 94V-0), which is flame retardant. * **Terminals:** Copper alloy, tin-plated for excellent solderability and conductivity. * **Safety Design:** Designed to be "Shock-safe," meaning live parts cannot be touched when the fuse carrier is removed or when the holder is closed. --- ### 3. Application Use Cases This component is commonly used in power supplies and medical devices where reliability is critical. * **Industrial Automation:** Protecting control circuits from overcurrent. * **Medical Equipment:** Due to its high safety ratings and compliance with IEC standards. * **Audio/Video Gear:** Used in high-end amplifiers and power distributors. * **Laboratory Instruments:** Ensures sensitive measurement tools are fused correctly. --- ### 4. Dimensional Data The part requires a specific cutout for installation: * **Mounting Hole:** Circular with "flats" (D-shape) to prevent the holder from rotating when the cap is tightened. * **Panel Thickness:** Generally accommodates panels between 0.8mm and 8.0mm.