Five fast-acting ceramic fuses, each 10 x 38 mm, rated up to 500 V. Available current options: 0.5 A, 1 A, 2 A, 4 A, 5 A, 6 A, 8 A, 10 A, 16 A, 20 A, and 32 A. Variants RO15, RT18, RT14 exist; the selected variant is 4 A, 10 x 38 (10x38 4A), color coded for easy identification. Why you need these fuses Fast overcurrent response protects power supplies, sensitive electronics, and control circuits from damage caused by short circuits and overloads. Ceramic construction provides superior heat resistance and mechanical durability compared with glass fuses, improving reliability under thermal stress. High voltage rating (up to 500 V) makes them suitable for demanding and higher-voltage applications. Standard 10 x 38 mm size fits common fuse holders and PCB clips for easy replacement and installation. Color-coded bodies allow quick, unambiguous identification of amperage during maintenance and inventory. Key features Form factor: 10 x 38 mm ceramic body Speed: fast-acting (rapid blow) Voltage rating: up to 500 V Available currents: 0.5 A, 1 A, 2 A, 4 A, 5 A, 6 A, 8 A, 10 A, 16 A, 20 A, 32 A Variants: RO15, RT18, RT14 (selected: 10x38 4 A) Identification: color coded by amperage for easy visual selection How this solves problems Prevents component and board damage by interrupting fault currents quickly. Reduces downtime by using a common, standardized size that is easy to replace from stock. Improves safety and reliability in systems exposed to higher operating voltages or thermal cycling, thanks to the ceramic body. Compatibility and performance Compact 10 x 38 mm size is compatible with standard fuse holders, clips, and PCB mount assemblies. Fast-acting characteristic is ideal where rapid interruption of fault current is required to protect sensitive electronics. Ceramic casing increases tolerance to heat and shock compared with glass equivalents. Typical applications Power supplies and adapters for consumer electronics and industrial equipment Audio amplifiers and other sensitive electronic devices where quick clearing of faults protects components Industrial control panels, motor drives, and automation equipment requiring reliable overcurrent protection at higher voltages What’s included Pack of five fast-acting ceramic fuses, 10 x 38 mm each Selected variant: 4 A, 10 x 38 (10x38 4A), color coded for easy ID Use these fuses where you need compact, fast-acting overcurrent protection with high voltage capability, durable ceramic construction, and clear amperage identification.