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El 6x30mm panel fuse holder<\/strong> is a medium-current panel-installed circuit protection component for low-voltage electrical systems. This 6x30mm panel fuse holder adopts high-quality PBT insulating base paired with 0.8mm thick phosphor bronze conductive terminals, delivering higher current carrying capacity, stable contact and reliable overcurrent protection for AC and DC circuits. With standard panel cutout design and flame retardant housing, it is widely used in industrial control equipment, switching power supplies, power distribution units and instrumentation panels.<\/p>\n Compared with 15A small-size panel fuse holders, this model adopts 0.8mm thickened terminals with higher current carrying capacity, which is more suitable for medium-power industrial power supply and control circuits. Its PBT flame retardant housing adapts to the working environment of various indoor electrical equipment, and is a standard protection solution for low-voltage control circuits and power supply units.<\/p>\n When selecting a 6x30mm panel fuse holder, first confirm the fuse size, system rated voltage and operating current. For medium-power circuits above 15A, this 0.8mm thickened terminal model is recommended for higher current carrying capacity and lower temperature rise. Choose a 6x30mm 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 flame retardant and insulation-sensitive scenarios, prioritize products with UL94 V0 grade housing and high insulation resistance to ensure operational safety.<\/p>\n 1. Select a 6x30mm 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 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 R3-55A<\/td>\n<\/tr>\n \n Compatible Fuse<\/td>\n 6 \u00d7 30mm glass \/ ceramic cartridge fuse<\/td>\n<\/tr>\n \n Rated Current<\/td>\n 20A<\/td>\n<\/tr>\n \n Rated Voltage<\/td>\n 250V \/ 125V 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 PBT, UL94 V0 flame retardant<\/td>\n<\/tr>\n \n Terminal Material<\/td>\n 0.8mm 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