{"product_id":"ferraz-shawmut-a70qs450-4-amp-trap-semiconductor-fuse","title":"Ferraz Shawmut A70QS450-4 Amp Trap Semiconductor Fuse","description":"\u003cdiv class=\"\" data-turn-id-container=\"request-6a6308a9-f77c-83ec-ad83-367f74359219-5\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a6308a9-f77c-83ec-ad83-367f74359219-5\" data-turn-id-container=\"request-6a6308a9-f77c-83ec-ad83-367f74359219-5\" data-testid=\"conversation-turn-452\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-15 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"45f93ad1-50a6-4654-bb83-bb0caae2c89d\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"streaming-animation markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"18\" data-end=\"751\"\u003eThe Ferraz Shawmut A70QS450-4 Fuse is a high-speed Amp-Trap® Form 101 semiconductor fuse rated at 450 Amps and 700 VAC\/700 VDC, designed to provide ultra-fast overcurrent and short-circuit protection for power semiconductor devices. Commonly installed in variable frequency drives (VFDs), inverters, UPS systems, rectifiers, DC \u003ca href=\"https:\/\/plgautomation.com\/collections\/drives-motor-control\"\u003edrives\u003c\/a\u003e, and industrial power conversion equipment where low I²t performance is critical for semiconductor protection. Maintenance technicians and \u003ca href=\"https:\/\/plgautomation.com\/collections\/hmi-operator-interfaces\"\u003esystem integrators\u003c\/a\u003e use this fuse for equipment repair, retrofit, expansion, and replacement to protect IGBTs, SCRs, diodes, and other semiconductor components, improve system reliability, and minimize production downtime. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"753\" data-end=\"770\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"772\" data-end=\"1237\"\u003eThe Ferraz Shawmut A70QS450-4 Fuse is used to protect high-power semiconductor devices against overload and short-circuit faults in industrial power electronic systems. It is commonly utilized in motor drives, uninterruptible power supplies (UPS), battery chargers, induction heating equipment, renewable energy inverters, welding machines, and DC power conversion systems requiring high-speed current-limiting fuse protection. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1239\" data-end=\"1268\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1270\" data-end=\"1806\"\u003e• Manufacturer: Ferraz Shawmut (Now Mersen)\u003cbr data-start=\"1313\" data-end=\"1316\"\u003e• Part Number: A70QS450-4\u003cbr data-start=\"1341\" data-end=\"1344\"\u003e• Product Type: High-Speed Semiconductor Fuse\u003cbr data-start=\"1389\" data-end=\"1392\"\u003e• Series: Amp-Trap® A70QS Form 101\u003cbr data-start=\"1426\" data-end=\"1429\"\u003e• Current Rating: 450 A\u003cbr data-start=\"1452\" data-end=\"1455\"\u003e• Voltage Rating: 700 VAC \/ 700 VDC\u003cbr data-start=\"1490\" data-end=\"1493\"\u003e• Interrupting Rating: 200 kA AC \/ 100 kA DC\u003cbr data-start=\"1537\" data-end=\"1540\"\u003e• Frequency: 50\/60 Hz\u003cbr data-start=\"1561\" data-end=\"1564\"\u003e• Fuse Style: Bolted Blade (Form 101)\u003cbr data-start=\"1601\" data-end=\"1604\"\u003e• Fuse Type: Fast-Acting, Current-Limiting\u003cbr data-start=\"1646\" data-end=\"1649\"\u003e• Application: Semiconductor Protection\u003cbr data-start=\"1688\" data-end=\"1691\"\u003e• Mounting Style: Bolt-On\u003cbr data-start=\"1716\" data-end=\"1719\"\u003e• Standards: UL Recognized, RoHS, REACH Compliant \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"1808\" data-end=\"1832\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1834\" data-end=\"1941\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Mersen A70QS450-4K\u003cbr data-start=\"1854\" data-end=\"1857\"\u003e• Mersen A70QS450-4IL\u003cbr data-start=\"1878\" data-end=\"1881\"\u003e• Mersen A70QS450-4KIL\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"PLG Automation ","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51727269331246,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_1ae768dd-de4a-4475-a8d6-17a693d12fec.jpg?v=1770582266","url":"https:\/\/plgautomation.com\/products\/ferraz-shawmut-a70qs450-4-amp-trap-semiconductor-fuse","provider":"PLG Automation ","version":"1.0","type":"link"}