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The panel mount fuse holders clips and accessories<\/strong> series is a classic panel-installed circuit protection solution for 5\u00d720mm cartridge fuses. This 5x20mm panel mount fuse holder adopts high-temperature bakelite insulating base paired with 0.5mm phosphor bronze conductive terminals, delivering reliable insulation performance, stable contact and durable overcurrent protection for low-voltage AC and DC circuits. With standard panel cutout design and matching accessory compatibility, it is widely used in industrial control equipment, switching power supplies, power distribution units and instrumentation front panels.<\/p>\n Compared with PCB mount fuse clips, this panel type model provides more flexible installation positions and easier daily maintenance. Its bakelite housing has outstanding thermal stability and arc resistance, making it a standard protection solution for low-voltage control circuits and bench-top power supply units. The matching clips and accessories ensure consistent assembly quality and long-term reliable operation.<\/p>\n When selecting panel mount fuse holders, clips and accessories, first confirm the fuse size, system rated voltage and operating current. Choose a 5x20mm fuse with appropriate current rating based on actual load, and reserve a 1.25\u20131.5 times safety margin to prevent overheating during continuous operation. For equipment requiring front-panel fuse replacement, panel mount models are the preferred choice as they allow quick fuse replacement without opening the equipment enclosure. For arc suppression and insulation-sensitive scenarios, bakelite housing models are recommended for better high-temperature resistance and operational safety. Matching clips and accessories ensure consistent assembly and long-term contact stability.<\/p>\n 1. Select a 5x20mm cartridge fuse with correct current and voltage rating according to circuit protection requirements.<\/p>\n 2. Drill a standard mounting hole on the equipment panel, insert the fuse holder from the front side, and tighten the fixing nut from the back to ensure firm installation.<\/p>\n 3. Connect circuit wires tightly to the rear terminals and apply proper insulation treatment to prevent short circuit hazards.<\/p>\n 4. Insert the fuse fully into the holder and tighten the end cap to ensure reliable contact and insulation performance.<\/p>\n 5. Do not operate beyond the rated voltage and current range to prevent insulation breakdown and safety risks.<\/p>\n 6. Disconnect the power supply completely before fuse replacement to avoid electric shock and short circuit damage.<\/p>\n 7. Inspect terminals, clips and fuses periodically for looseness, oxidation or overheating signs, and replace components promptly if abnormalities are found.<\/p>\nCore Product Features<\/h2>\n
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Full Technical Specifications<\/h2>\n
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\n Specification Item<\/th>\n Parameter Value<\/th>\n<\/tr>\n \n Model<\/td>\n R3-12<\/td>\n<\/tr>\n \n Compatible Fuse<\/td>\n 5 \u00d7 20mm glass \/ ceramic cartridge fuse<\/td>\n<\/tr>\n \n Rated Current<\/td>\n 10A<\/td>\n<\/tr>\n \n Rated Voltage<\/td>\n 250V AC \/ DC<\/td>\n<\/tr>\n \n Breaking Capacity<\/td>\n 50A<\/td>\n<\/tr>\n \n Power Frequency Withstand Voltage<\/td>\n 3000V AC<\/td>\n<\/tr>\n \n Housing Material<\/td>\n Bakelite, UL94 V0 flame retardant<\/td>\n<\/tr>\n \n Terminal Material<\/td>\n 0.5mm thick phosphor bronze<\/td>\n<\/tr>\n \n Contact Resistance<\/td>\n \uff1c 5 m\u03a9<\/td>\n<\/tr>\n \n Insulation Resistance<\/td>\n \uff1e 100 M\u03a9<\/td>\n<\/tr>\n \n Mounting Method<\/td>\n Panel mount, threaded nut fixing<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Selection & Application Guidance<\/h2>\n
Typical Application Scenarios<\/h2>\n
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Installation & Maintenance Instructions<\/h2>\n