{"product_id":"bussmann-fwh-125b-fuse","title":"Bussmann FWH-125B Fuse","description":"\u003cstyle\u003e\n.nxs-industrial-product-page {\n--industrial-navy: #082f49;\n    --industrial-blue: #0b4f7c;\n    --industrial-blue-2: #0f6ea8;\n    --industrial-blue-3: #1784c1;\n    --industrial-cyan: #38bdf8;\n    --steel-blue: #dcebf5;\n    --steel-blue-2: #edf6fb;\n    --steel-line: #c9dce9;\n    --surface: #ffffff;\n    --surface-soft: #f7fbfe;\n    --text-main: #173042;\n    --text-muted: #5e7382;\n    --shadow-soft: 0 10px 30px rgba(8, 47, 73, 0.08);\n    --shadow-hover: 0 16px 36px rgba(8, 79, 124, 0.15);\n    --radius-lg: 14px;\n    --radius-md: 10px;\n}\n\n.nxs-industrial-product-page, .nxs-industrial-product-page * {\nmargin: 0;\n    padding: 0;\n    box-sizing: border-box;\n    font-family: Arial, Helvetica, sans-serif;\n}\n\n.nxs-industrial-product-page {\nbackground-color: #f3f8fb;\n    background-image:\n        linear-gradient(180deg, #eef6fb 0, #f7fafc 320px, #eef3f7 100%),\n        linear-gradient(rgba(15, 110, 168, 0.025) 1px, transparent 1px),\n        linear-gradient(90deg, rgba(15, 110, 168, 0.025) 1px, transparent 1px);\n    background-size: auto, 34px 34px, 34px 34px;\n    position: relative;\n    isolation: isolate;\n    overflow: hidden;\n    color: var(--text-main);\n    line-height: 1.75;\n    -webkit-font-smoothing: antialiased;\n}\n\n.nxs-industrial-product-page .container {\nwidth: 92%;\n    max-width: 1120px;\n    margin: 0 auto;\n    padding-bottom: 34px;\n}\n\n.nxs-industrial-product-page main {\npadding-top: 8px;\n}\n\n.nxs-industrial-product-page .section {\nposition: relative;\n    overflow: hidden;\n    background: var(--surface);\n    margin: 22px auto;\n    padding: 36px 30px;\n    border: 1px solid var(--steel-line);\n    border-radius: var(--radius-lg);\n    box-shadow: var(--shadow-soft);\n}\n\n.nxs-industrial-product-page .section::before {\ncontent: \"\";\n    position: absolute;\n    left: 0;\n    top: 0;\n    width: 5px;\n    height: 100%;\n    background: linear-gradient(180deg, var(--industrial-blue-3), var(--industrial-blue));\n}\n\n.nxs-industrial-product-page .section h2 {\nposition: relative;\n    display: inline-flex;\n    align-items: center;\n    gap: 10px;\n    font-size: 25px;\n    line-height: 1.3;\n    color: var(--industrial-navy);\n    margin-bottom: 24px;\n    letter-spacing: -0.2px;\n}\n\n.nxs-industrial-product-page .section h2::before {\ncontent: \"\";\n    width: 28px;\n    height: 4px;\n    flex: 0 0 28px;\n    border-radius: 999px;\n    background: linear-gradient(90deg, var(--industrial-blue-2), var(--industrial-cyan));\n}\n\n.nxs-industrial-product-page .section p {\ncolor: var(--text-main);\n}\n\n.nxs-industrial-product-page .spec-table {\nwidth: 100%;\n    border-collapse: separate;\n    border-spacing: 0;\n    overflow: hidden;\n    border: 1px solid var(--steel-line);\n    border-radius: var(--radius-md);\n    background: #fff;\n}\n\n.nxs-industrial-product-page .spec-table tr {\ntransition: background-color 0.2s ease, transform 0.2s ease;\n}\n\n.nxs-industrial-product-page .spec-table tr:nth-child(even) {\nbackground: #f7fbfe;\n}\n\n.nxs-industrial-product-page .spec-table tr:hover {\nbackground: #eaf5fb;\n}\n\n.nxs-industrial-product-page .spec-table td {\npadding: 13px 16px;\n    border-bottom: 1px solid #dbe7ef;\n    vertical-align: top;\n    color: #294658;\n}\n\n.nxs-industrial-product-page .spec-table tr:last-child td {\nborder-bottom: none;\n}\n\n.nxs-industrial-product-page .spec-table td:first-child {\nposition: relative;\n    width: 38%;\n    font-weight: 700;\n    color: #0b456d;\n    background: rgba(220, 235, 245, 0.42);\n}\n\n.nxs-industrial-product-page .spec-table td:first-child::after {\ncontent: \"\";\n    position: absolute;\n    top: 22%;\n    right: 0;\n    width: 1px;\n    height: 56%;\n    background: #c7dce9;\n}\n\n.nxs-industrial-product-page .features {\ndisplay: grid;\n    grid-template-columns: repeat(auto-fit, minmax(235px, 1fr));\n    gap: 18px;\n}\n\n.nxs-industrial-product-page .card {\nposition: relative;\n    overflow: hidden;\n    min-height: 100%;\n    background: linear-gradient(180deg, #ffffff 0%, #f4f9fc 100%);\n    padding: 22px 20px 21px;\n    border: 1px solid #d5e4ee;\n    border-radius: var(--radius-md);\n    box-shadow: 0 6px 18px rgba(8, 47, 73, 0.055);\n    transition:\n        transform 0.22s ease,\n        box-shadow 0.22s ease,\n        border-color 0.22s ease;\n}\n\n.nxs-industrial-product-page .card::before {\ncontent: \"\";\n    position: absolute;\n    left: 0;\n    top: 0;\n    width: 100%;\n    height: 4px;\n    background: linear-gradient(90deg, var(--industrial-blue), var(--industrial-cyan));\n}\n\n.nxs-industrial-product-page .card::after {\ncontent: \"\";\n    position: absolute;\n    width: 74px;\n    height: 74px;\n    right: -28px;\n    bottom: -30px;\n    border: 1px solid rgba(15, 110, 168, 0.12);\n    border-radius: 50%;\n    transition: transform 0.22s ease;\n}\n\n.nxs-industrial-product-page .card:hover {\ntransform: translateY(-4px);\n    border-color: #a9cadf;\n    box-shadow: var(--shadow-hover);\n}\n\n.nxs-industrial-product-page .card:hover::after {\ntransform: scale(1.25);\n}\n\n.nxs-industrial-product-page .card h3 {\nposition: relative;\n    color: var(--industrial-blue);\n    font-size: 18px;\n    line-height: 1.35;\n    margin-bottom: 10px;\n    padding-left: 14px;\n}\n\n.nxs-industrial-product-page .card h3::before {\ncontent: \"\";\n    position: absolute;\n    left: 0;\n    top: 0.25em;\n    width: 4px;\n    height: 1em;\n    border-radius: 4px;\n    background: var(--industrial-blue-3);\n}\n\n.nxs-industrial-product-page .card p {\ncolor: #526a79;\n    font-size: 15px;\n}\n\n.nxs-industrial-product-page .section ul {\ndisplay: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 11px 18px;\n    padding-left: 0;\n    list-style: none;\n}\n\n.nxs-industrial-product-page .section li {\nposition: relative;\n    margin: 0;\n    padding: 12px 14px 12px 38px;\n    background: var(--surface-soft);\n    border: 1px solid #dbe8f0;\n    border-radius: 8px;\n    color: #365264;\n}\n\n.nxs-industrial-product-page .section li::before {\ncontent: \"\";\n    position: absolute;\n    left: 15px;\n    top: 50%;\n    width: 9px;\n    height: 9px;\n    transform: translateY(-50%) rotate(45deg);\n    background: var(--industrial-blue-2);\n    box-shadow: 0 0 0 4px rgba(15, 110, 168, 0.1);\n}\n\n.nxs-industrial-product-page .section:nth-of-type(4) p {\npadding: 18px 20px;\n    background: linear-gradient(135deg, #edf7fc, #f9fcfe);\n    border: 1px solid #cfe4f1;\n    border-left: 4px solid var(--industrial-blue-2);\n    border-radius: 9px;\n    color: #355267;\n}\n\n.nxs-industrial-product-page .section:last-of-type {\ncounter-reset: faq;\n}\n\n.nxs-industrial-product-page .section:last-of-type \u003e p {\nposition: relative;\n    margin: 0;\n    padding: 18px 18px 18px 54px;\n    background: #f8fbfd;\n    border: 1px solid #d8e6ef;\n    border-radius: 9px;\n    box-shadow: 0 4px 12px rgba(8, 47, 73, 0.035);\n    transition: border-color 0.2s ease, background-color 0.2s ease;\n    counter-increment: faq;\n}\n\n.nxs-industrial-product-page .section:last-of-type \u003e p:hover {\nbackground: #f1f8fc;\n    border-color: #bfd8e7;\n}\n\n.nxs-industrial-product-page .section:last-of-type \u003e p::before {\ncontent: counter(faq, decimal-leading-zero);\n    position: absolute;\n    left: 15px;\n    top: 17px;\n    min-width: 28px;\n    height: 28px;\n    display: inline-flex;\n    align-items: center;\n    justify-content: center;\n    border-radius: 6px;\n    background: var(--industrial-blue);\n    color: #fff;\n    font-size: 11px;\n    font-weight: 700;\n    letter-spacing: 0.3px;\n    box-shadow: 0 5px 12px rgba(8, 79, 124, 0.18);\n}\n\n.nxs-industrial-product-page .section:last-of-type \u003e p strong {\ndisplay: inline-block;\n    color: #0b456d;\n    margin-bottom: 5px;\n    line-height: 1.4;\n}\n\n.nxs-industrial-product-page .section:last-of-type \u003e br {\ndisplay: block;\n    content: \"\";\n    margin: 10px 0;\n}\n\n@media (max-width: 760px) {\n.nxs-industrial-product-page .container {\nwidth: 100%;\n        padding: 0 12px 24px;\n}\n\n.nxs-industrial-product-page .section {\npadding: 26px 17px 24px;\n        margin: 14px auto;\n        border-radius: 11px;\n}\n\n.nxs-industrial-product-page .section::before {\nwidth: 4px;\n}\n\n.nxs-industrial-product-page .section h2 {\nfont-size: 21px;\n        margin-bottom: 18px;\n}\n\n.nxs-industrial-product-page .section h2::before {\nwidth: 20px;\n        flex-basis: 20px;\n}\n\n.nxs-industrial-product-page .spec-table {\ndisplay: table;\n        table-layout: fixed;\n}\n\n.nxs-industrial-product-page .spec-table td {\npadding: 11px 9px;\n        font-size: 13px;\n        line-height: 1.55;\n        overflow-wrap: anywhere;\n}\n\n.nxs-industrial-product-page .spec-table td:first-child {\nwidth: 42%;\n}\n\n.nxs-industrial-product-page .features {\ngrid-template-columns: 1fr;\n        gap: 12px;\n}\n\n.nxs-industrial-product-page .card {\npadding: 18px 17px;\n}\n\n.nxs-industrial-product-page .card:hover {\ntransform: none;\n}\n\n.nxs-industrial-product-page .section ul {\ngrid-template-columns: 1fr;\n        gap: 9px;\n}\n\n.nxs-industrial-product-page .section li {\npadding: 11px 12px 11px 36px;\n        font-size: 14px;\n}\n\n.nxs-industrial-product-page .section:last-of-type \u003e p {\npadding: 16px 14px 16px 48px;\n        font-size: 14px;\n}\n\n.nxs-industrial-product-page .section:last-of-type \u003e p::before {\nleft: 12px;\n        top: 15px;\n        min-width: 26px;\n        height: 26px;\n        font-size: 10px;\n}\n}\n\n@media (prefers-reduced-motion: reduce) {\n.nxs-industrial-product-page, .nxs-industrial-product-page *, .nxs-industrial-product-page *::before, .nxs-industrial-product-page *::after {\ntransition: none !important;\n}\n}\n\u003c\/style\u003e\n\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\u003cdiv class=\"container\"\u003e\u003cmain\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBussmann\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eFWH-125B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eFuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eEaton Bussmann FWH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Type\u003c\/td\u003e\n\u003ctd\u003eHigh Speed Cylindrical Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Current\u003c\/td\u003e\n\u003ctd\u003e125 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Voltage AC\u003c\/td\u003e\n\u003ctd\u003e500 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Voltage DC\u003c\/td\u003e\n\u003ctd\u003e500 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaking Capacity (AC)\u003c\/td\u003e\n\u003ctd\u003e200 kAIC at 1000 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaking Capacity (DC)\u003c\/td\u003e\n\u003ctd\u003e50 kAIC at 500 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUtilization Category\u003c\/td\u003e\n\u003ctd\u003eClass aR (semiconductor protection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-arc I2t\u003c\/td\u003e\n\u003ctd\u003e800 A2s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClearing I2t\u003c\/td\u003e\n\u003ctd\u003e3500 A2s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Loss\u003c\/td\u003e\n\u003ctd\u003e25 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Shape\u003c\/td\u003e\n\u003ctd\u003eCenter bolted tags, cylindrical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eBlade end x blade end\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eStud, M8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCenter-to-Center Distance\u003c\/td\u003e\n\u003ctd\u003e74.09 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Length\/Depth\u003c\/td\u003e\n\u003ctd\u003e91 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Height\u003c\/td\u003e\n\u003ctd\u003e30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Width\u003c\/td\u003e\n\u003ctd\u003e30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Weight\u003c\/td\u003e\n\u003ctd\u003e152 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL Recognized, CSA Certified, CE Marked, RoHS Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\u003ch3\u003e125 A High-Speed Cylindrical Fuse\u003c\/h3\u003e\n\u003cp\u003eEaton Bussmann FWH series high-speed fuse with a 125 A rating, Class aR, designed for semiconductor and DC common bus protection.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003e500 VAC \/ 500 VDC Rating\u003c\/h3\u003e\n\u003cp\u003eRated 500 VAC and 500 VDC for dual AC\/DC protection in power conversion and drive circuits.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003e200 kAIC AC Breaking Capacity\u003c\/h3\u003e\n\u003cp\u003e200 kAIC at 1000 VAC and 50 kAIC at 500 VDC provide high fault current interruption for demanding applications.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eCenter Bolted Blade Terminals\u003c\/h3\u003e\n\u003cp\u003eCylindrical body with center bolted tags, blade-end connections, and M8 stud mounting for secure high-current installations.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eUL Recognized and CSA Certified\u003c\/h3\u003e\n\u003cp\u003eCarries UL Recognition, CSA Certification, and CE marking for use in North American and international equipment.\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSemiconductor protection\u003c\/li\u003e\n\u003cli\u003eDC common bus\u003c\/li\u003e\n\u003cli\u003eDC drives\u003c\/li\u003e\n\u003cli\u003ePower converters and rectifiers\u003c\/li\u003e\n\u003cli\u003eIndustrial power electronics\u003c\/li\u003e\n\u003cli\u003eAC and DC high-energy circuits\u003c\/li\u003e\n\u003cli\u003eFWH series fuse replacement\u003c\/li\u003e\n\u003cli\u003eDrive and rectifier maintenance projects\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Bussmann FWH-125B Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Bussmann FWH-125B?\u003c\/strong\u003e\nThe Bussmann FWH-125B is a high-speed cylindrical fuse from the Eaton Bussmann FWH series, rated 125 A at 500 VAC \/ 500 VDC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the voltage rating of the FWH-125B?\u003c\/strong\u003e\nIt is rated 500 VAC and 500 VDC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the breaking capacity of the FWH-125B?\u003c\/strong\u003e\nThe FWH-125B has a 200 kAIC breaking capacity at 1000 VAC and 50 kAIC at 500 VDC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat class is the FWH-125B?\u003c\/strong\u003e\nIt is Class aR, intended for semiconductor protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the power loss of the FWH-125B?\u003c\/strong\u003e\nThe published power loss is 25 W.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the FWH-125B?\u003c\/strong\u003e\nThe fuse is 91 mm long, 30 mm high, and 30 mm wide, with an M8 stud mounting and 74.09 mm center-to-center connection distance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat certifications does the FWH-125B carry?\u003c\/strong\u003e\nIt is UL Recognized, CSA Certified, CE Marked, and RoHS Compliant.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the pre-arc I2t of the FWH-125B?\u003c\/strong\u003e\nThe pre-arc I2t is 800 A2s, and the clearing I2t is 3500 A2s.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere is the FWH-125B typically applied?\u003c\/strong\u003e\nTypical applications include semiconductor protection, DC common bus, DC drives, and power converters\/rectifiers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering an FWH-125B?\u003c\/strong\u003e\nConfirm the catalog number, voltage and current ratings, mounting configuration, and certification requirements against the application.\u003c\/p\u003e\u003c\/section\u003e\u003c\/main\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Eaton Bussmann","offers":[{"title":"Default Title","offer_id":67887886630991,"sku":"LL1-BSM-FWH-125B","price":32.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/FWH-125B-01-_01.jpg?v=1793094443","url":"https:\/\/yunshuotrade.com\/products\/bussmann-fwh-125b-fuse","provider":"yunshuotrade","version":"1.0","type":"link"}