{"product_id":"siguranta-rapida-4a-ceramica-fuzabila-dimensiune-5x20mm-set-100-buc","title":"Fast-Acting Fuse 4A, Ceramic, Fusible, 5x20mm, Set of 100 pcs","description":"\u003cdiv class=\"cl-desc\"\u003e\n\n\u003cdiv class=\"cl-intro\"\u003e\n\n\u003ch2\u003e4A 5x20mm Fast Ceramic Fuse for Equipment Protection\u003c\/h2\u003e\n\n\u003cp\u003eSet of 100 fast-acting ceramic fuses, ideal for protecting power supplies, LED equipment, and electronic devices against overcurrent and short circuits. Standard 5x20mm size, compatible with most household and industrial devices requiring 4A protection.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"cl-benefits\"\u003e\n\n\u003ch2\u003eWhat you get with this product\u003c\/h2\u003e\n\n\u003cul\u003e\n\n\u003cli\u003eFast overcurrent protection — instantly interrupts the circuit when exceeding 4A, preventing damage to expensive equipment\u003c\/li\u003e\n\n\u003cli\u003eComplete set of 100 pieces — sufficient stock for long-term maintenance, ideal for workshops, service centers, or intensive home use\u003c\/li\u003e\n\n\u003cli\u003eUniversal compatibility — standard 5x20mm size, mounts in any classic fuse holder\u003c\/li\u003e\n\n\u003cli\u003eDurable ceramic construction — withstands high temperatures without cracking, more reliable than glass variants\u003c\/li\u003e\n\n\u003cli\u003eWide applicability — suitable for power supplies, stabilizers, televisions, audio equipment, transformers, and LED lighting systems\u003c\/li\u003e\n\n\u003cli\u003eExceptional value for money — bulk purchase at an affordable price, reducing maintenance costs\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"cl-how\"\u003e\n\n\u003ch2\u003eHow it works and how to install\u003c\/h2\u003e\n\n\u003cp\u003eThe fuse is installed in the dedicated holder of the electrical appliance, in series with the power supply circuit. The internal metal conductor wire melts instantly when the current exceeds 4A, interrupting the circuit and protecting the components. Replacement is simple: disconnect the appliance from the mains, remove the blown fuse from the holder, and insert a new one, observing the same amperage value.\u003c\/p\u003e\n\n\u003cp\u003eThe fuse's condition can be visually checked through the metal caps or with a multimeter set to continuity. Never replace with higher amperage fuses — risk of fire and equipment damage.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"cl-faq\"\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdiv class=\"cl-faq-item\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use these fuses for 12V LED lighting systems?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eYes, they are perfect for protecting LED power supplies and drivers that operate at 12V or 24V, as long as the consumption does not exceed 4A.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"cl-faq-item\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between a fast and a slow-blow fuse?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA fast-blow fuse trips instantly when the nominal current is exceeded, making it ideal for sensitive electronic equipment. A slow-blow fuse tolerates a short current surge at startup, used for motors or transformers.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"cl-faq-item\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow do I know if the fuse has blown?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eVisually, the internal metallic wire will be broken, visible through the ceramic capsule. For a reliable check, use a multimeter on the continuity function — a good fuse will show almost zero resistance.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"cl-specs\"\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable\u003e\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\n\u003ctd\u003eFast ceramic fuse\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eNominal Current\u003c\/td\u003e\n\n\u003ctd\u003e4A\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMaximum Voltage\u003c\/td\u003e\n\n\u003ctd\u003e250V AC\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\n\u003ctd\u003e5 x 20 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\n\u003ctd\u003eCeramic\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eEnd Cap Material\u003c\/td\u003e\n\n\u003ctd\u003eNickel-plated metal\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eAction Type\u003c\/td\u003e\n\n\u003ctd\u003eFast blow (F)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eStandard\u003c\/td\u003e\n\n\u003ctd\u003eIEC 60127\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003ePackage Quantity\u003c\/td\u003e\n\n\u003ctd\u003e100 pieces\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eApplications\u003c\/td\u003e\n\n\u003ctd\u003ePower supplies, LED equipment, electronics, stabilizers\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"cl-warranty\"\u003e\n\n\u003ch2\u003eWarranty and Support\u003c\/h2\u003e\n\n\u003cp\u003eThe product benefits from a 24-month warranty according to current Romanian legislation. Right of return within 30 days of purchase. Fast delivery via national courier with telephone confirmation. For technical assistance, contact the CLASSLIGHTS team.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e","brand":"OEM","offers":[{"title":"Default Title","offer_id":56801613447499,"sku":"Q-16F035","price":8.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1032\/2067\/4891\/files\/Siguranta-de-ceramica_d9a28f3f-c39c-4e45-8917-e59d5554c418.jpg?v=1773834786","url":"https:\/\/classlights.eu\/hu-eu\/products\/siguranta-rapida-4a-ceramica-fuzabila-dimensiune-5x20mm-set-100-buc","provider":"ClassLights","version":"1.0","type":"link"}