Glass fuses (Glassicherungen) What it does Protects electrical circuits by interrupting current flow when a fault or overload occurs. Transparent glass body allows quick visual inspection to see if the fuse element has melted. Key benefits Clear visual check: the glass tube makes failure obvious without disassembly. Simple replacement: standard cartridge shape fits common fuse clips and holders. Reliable protection: metal end caps and a visible fuse element provide consistent interruption of overcurrent conditions. Compact and low-profile: suitable for confined spaces in electronic equipment and small appliances. Important attributes Function: overcurrent protection / circuit interruption. Material: clear glass tube with metal end caps and an internal fuse wire. Compatibility: designed to fit standard cylindrical fuse clips and cartridge holders used in electronics and electrical devices. Size and ratings: manufactured in common cartridge formats; select the appropriate physical size and current/voltage rating for your application. Performance: predictable visual indication of a blown fuse and stable electrical behavior when installed correctly. Practical use scenarios Consumer electronics: replacement in radios, audio amplifiers, small power supplies and other electronic devices where a visible fuse is preferred. Lighting and household fixtures: protection for lamp circuits, transformered fixtures, and control modules that accept cartridge fuses. Industrial controls and test equipment: temporary protection or maintenance replacements in control panels and bench equipment using cylindrical fuse holders. Installation and safety tips Always replace with the same size and current/voltage rating as the original fuse. Power down and isolate the circuit before replacing a fuse. Use proper fuse holders or clips to ensure secure contact and avoid overheating. If fuses blow repeatedly, investigate the underlying fault rather than repeatedly replacing fuses. Choose glass fuses when you need straightforward, visible overcurrent protection that is easy to inspect and replace in a wide range of electronic and electrical applications.