{"product_id":"eaton-bussmann-fwx-400a-400a-high-speed-fuse-stud-mount-600v","title":"Eaton Bussmann FWX-400A 400A High Speed Fuse – Stud Mount – 600V","description":"\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] 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-69f38d39-f654-83e8-b941-44eeb6cb23a1-11\" data-testid=\"conversation-turn-188\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--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 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=\"aac91031-ff76-47ff-873c-14eeb38cecdd\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" 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\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"123\" data-end=\"575\"\u003eThe Eaton Bussmann FWX-400A is a high-speed fuse designed for semiconductor protection in industrial power electronic systems. With a 400A RMS rating, it provides fast-acting fault interruption to protect sensitive equipment such as DC drives, rectifiers, and power converters. Its stud-mount configuration with blade end connections ensures secure installation and reliable performance in high-demand electrical environments.\u003c\/p\u003e\n\u003cp data-start=\"582\" data-end=\"604\"\u003e\u003cstrong data-start=\"582\" data-end=\"604\"\u003eVoltage and Rating\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"606\" data-end=\"746\"\u003e\n\u003cli data-section-id=\"5nfsyq\" data-start=\"606\" data-end=\"634\"\u003eCurrent Rating: 400A RMS\u003c\/li\u003e\n\u003cli data-section-id=\"yfiya8\" data-start=\"635\" data-end=\"660\"\u003eVoltage Rating: 600 V\u003c\/li\u003e\n\u003cli data-section-id=\"1825af1\" data-start=\"661\" data-end=\"715\"\u003eInterrupt Rating: 200 kAIC (VAC), 50 kAIC @ 250VDC\u003c\/li\u003e\n\u003cli data-section-id=\"z7yglg\" data-start=\"716\" data-end=\"746\"\u003eFuse Type: High Speed Fuse\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"753\" data-end=\"775\"\u003e\u003cstrong data-start=\"753\" data-end=\"775\"\u003eKey Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"777\" data-end=\"1107\"\u003e\n\u003cli data-section-id=\"1y8y66g\" data-start=\"777\" data-end=\"809\"\u003eManufacturer: Eaton Bussmann\u003c\/li\u003e\n\u003cli data-section-id=\"1s0vor8\" data-start=\"810\" data-end=\"838\"\u003eCatalog Number: FWX-400A\u003c\/li\u003e\n\u003cli data-section-id=\"1p8i4qy\" data-start=\"839\" data-end=\"872\"\u003eProduct Type: High Speed Fuse\u003c\/li\u003e\n\u003cli data-section-id=\"10mfdjj\" data-start=\"873\" data-end=\"907\"\u003eFuse Indicator: Non-Indicating\u003c\/li\u003e\n\u003cli data-section-id=\"he2kpo\" data-start=\"908\" data-end=\"939\"\u003eMounting Method: Stud Mount\u003c\/li\u003e\n\u003cli data-section-id=\"exxroj\" data-start=\"940\" data-end=\"982\"\u003eConnection Type: Blade End x Blade End\u003c\/li\u003e\n\u003cli data-section-id=\"gp4vr1\" data-start=\"983\" data-end=\"1065\"\u003eApplication: Semiconductor Protection, DC Drives, Power Converters, Rectifiers\u003c\/li\u003e\n\u003cli data-section-id=\"1qcitnj\" data-start=\"1066\" data-end=\"1107\"\u003eCompliance: CE Marked, RoHS Compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1114\" data-end=\"1142\"\u003e\u003cstrong data-start=\"1114\" data-end=\"1142\"\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1144\" data-end=\"1386\"\u003e\n\u003cli data-section-id=\"t184ld\" data-start=\"1144\" data-end=\"1165\"\u003eWatt Losses: 44 W\u003c\/li\u003e\n\u003cli data-section-id=\"1oecpsf\" data-start=\"1166\" data-end=\"1233\"\u003eInterrupt Characteristics: Fast-acting semiconductor protection\u003c\/li\u003e\n\u003cli data-section-id=\"vbgaa9\" data-start=\"1234\" data-end=\"1304\"\u003eElectrical Performance: High fault current interruption capability\u003c\/li\u003e\n\u003cli data-section-id=\"15jg4z8\" data-start=\"1305\" data-end=\"1357\"\u003eConstruction Type: Industrial-grade fuse element\u003c\/li\u003e\n\u003cli data-section-id=\"fs7089\" data-start=\"1358\" data-end=\"1386\"\u003ePackaging Type: Standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1393\" data-end=\"1413\"\u003e\u003cstrong data-start=\"1393\" data-end=\"1413\"\u003ePhysical Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1415\" data-end=\"1530\"\u003e\n\u003cli data-section-id=\"17v8j3i\" data-start=\"1415\" data-end=\"1447\"\u003eProduct Length\/Depth: 4.3 in\u003c\/li\u003e\n\u003cli data-section-id=\"1jbh4jg\" data-start=\"1448\" data-end=\"1475\"\u003eProduct Height: 1.63 in\u003c\/li\u003e\n\u003cli data-section-id=\"l42a6c\" data-start=\"1476\" data-end=\"1502\"\u003eProduct Width: 1.62 in\u003c\/li\u003e\n\u003cli data-section-id=\"14uqsz0\" data-start=\"1503\" data-end=\"1530\"\u003eProduct Weight: 0.46 lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1537\" data-end=\"1553\"\u003e\u003cstrong data-start=\"1537\" data-end=\"1553\"\u003eProduct Data\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1555\" data-end=\"1716\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"1y8y66g\" data-start=\"1555\" data-end=\"1587\"\u003eManufacturer: Eaton Bussmann\u003c\/li\u003e\n\u003cli data-section-id=\"1384iur\" data-start=\"1588\" data-end=\"1609\"\u003eUPC: 051712150712\u003c\/li\u003e\n\u003cli data-section-id=\"t3ek62\" data-start=\"1610\" data-end=\"1640\"\u003eCategory: High Speed Fuses\u003c\/li\u003e\n\u003cli data-section-id=\"s1scal\" data-start=\"1641\" data-end=\"1689\"\u003eCertifications: UL Recognized, CSA Certified\u003c\/li\u003e\n\u003cli data-section-id=\"1lc1dzt\" data-start=\"1690\" data-end=\"1716\" data-is-last-node=\"\"\u003eWarranty: Not Applicable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Eaton Bussmann","offers":[{"title":"NEW","offer_id":48346477560057,"sku":"FWX-400A","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/FWP-400A_C_4db47a18-37d7-4151-a9ba-97ebf502650a.jpg?v=1777800564","url":"https:\/\/mycircuitbreakers.com\/products\/eaton-bussmann-fwx-400a-400a-high-speed-fuse-stud-mount-600v","provider":"My Circuit Breakers","version":"1.0","type":"link"}