{"product_id":"1pcs-new-for-ferraz-shawmut-sc33ar69v13ctf-a1046960-1250a-690v-fuse","title":"1PCS NEW FOR Ferraz Shawmut SC33AR69V13CTF A1046960 1250A 690V Fuse","description":"\u003cstyle\u003e\n  \/* Base Container \u0026 Scope Isolation *\/\n  .koeed-wrapper {\n    width: 100%;\n    box-sizing: border-box;\n    color: #333333;\n    line-height: 1.6;\n  }\n  .koeed-wrapper *, .koeed-wrapper *::before, .koeed-wrapper *::after {\n    box-sizing: border-box;\n  }\n\n  \/* Headings \u0026 Typography *\/\n  .koeed-wrapper h2 {\n    color: #16c8c8;\n    border-left: 4px solid #16c8c8;\n    padding-left: 12px;\n    margin-top: 30px;\n    margin-bottom: 15px;\n    font-weight: 700;\n  }\n  .koeed-wrapper h3 {\n    color: #0056b3;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n\n  \/* Callout Blockquote *\/\n  .koeed-quote {\n    background-color: #f4fcfc;\n    border-left: 4px solid #16c8c8;\n    padding: 15px;\n    margin: 20px 0;\n  }\n\n  \/* Responsive Tables *\/\n  .koeed-table-responsive {\n    width: 100%;\n    overflow-x: auto;\n    margin-bottom: 25px;\n    border: 1px solid #eeeeee;\n  }\n  .koeed-table {\n    width: 100%;\n    border-collapse: collapse;\n    text-align: left;\n  }\n  .koeed-table th {\n    background-color: #f4fcfc;\n    color: #0056b3;\n    font-weight: 600;\n    padding: 12px;\n    border-bottom: 2px solid #eeeeee;\n  }\n  .koeed-table td {\n    padding: 12px;\n    border-bottom: 1px solid #eeeeee;\n  }\n  .koeed-table tr:nth-child(even) {\n    background-color: #fafafa;\n  }\n  .koeed-table tr:nth-child(odd) {\n    background-color: #ffffff;\n  }\n\n  \/* Bullet Points \u0026 Lists *\/\n  .koeed-list {\n    padding-left: 20px;\n    margin-bottom: 20px;\n  }\n  .koeed-list li {\n    margin-bottom: 8px;\n  }\n\n  \/* Interactive Tool Styles *\/\n  .koeed-tool-container {\n    background-color: #ffffff;\n    border: 2px solid #16c8c8;\n    border-radius: 6px;\n    padding: 25px;\n    margin: 30px 0;\n  }\n  .koeed-tool-grid {\n    display: grid;\n    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));\n    gap: 20px;\n    margin-bottom: 20px;\n  }\n  .koeed-input-group {\n    display: flex;\n    flex-direction: column;\n  }\n  .koeed-input-group label {\n    font-weight: 600;\n    margin-bottom: 6px;\n    color: #333333;\n  }\n  .koeed-input-group input, .koeed-input-group select {\n    padding: 10px;\n    border: 1px solid #eeeeee;\n    border-radius: 4px;\n    background-color: #fafafa;\n  }\n  .koeed-input-group input:focus, .koeed-input-group select:focus {\n    outline: none;\n    border-color: #16c8c8;\n    background-color: #ffffff;\n  }\n  .koeed-btn {\n    background-color: #16c8c8;\n    color: #ffffff;\n    border: none;\n    padding: 12px 20px;\n    border-radius: 4px;\n    cursor: pointer;\n    font-weight: 600;\n    transition: background-color 0.2s ease;\n  }\n  .koeed-btn:hover {\n    background-color: #0056b3;\n  }\n  .koeed-result-panel {\n    background-color: #f4fcfc;\n    border: 1px dashed #16c8c8;\n    padding: 15px;\n    margin-top: 20px;\n    border-radius: 4px;\n  }\n  .koeed-result-value {\n    font-size: 1.5em;\n    font-weight: 700;\n    color: #0056b3;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"koeed-wrapper\"\u003e\n\n  \u003c!-- SECTION 1: Engineer's Quick Brief --\u003e\n  \u003ch2\u003eEngineer's Quick Brief\u003c\/h2\u003e\n  \u003cdiv class=\"koeed-quote\"\u003e\n    \u003cul class=\"koeed-list\" style=\"margin-bottom: 0;\"\u003e\n      \u003cli\u003e\n\u003cstrong\u003eUltra-Fast Semiconductor Protection:\u003c\/strong\u003e Designed specifically as a square body PSC high-speed fuse to safeguard heavy-duty rectifiers, VFDs, and power converters against catastrophic short-circuit clearing events.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eExtreme Interrupting Rating:\u003c\/strong\u003e Engineered for direct high-capacity industrial grid deployment, safely managing severe sub-millisecond faults under \u003cstrong\u003e690V AC\u003c\/strong\u003e operational limits.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eMinimized Power Dissipation:\u003c\/strong\u003e Built with pure silver fuse elements and superior structural thermal cooling metrics to guarantee reduced voltage drop and lower ambient heat generation inside tight electrical enclosures.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SECTION 2: SEO Introduction --\u003e\n  \u003cp\u003eThe \u003cstrong\u003eFerraz Shawmut SC33AR69V13CTF\u003c\/strong\u003e (global catalog tracking reference \u003cstrong\u003eA1046960\u003c\/strong\u003e) is a high-performance, industrial-grade \u003cstrong\u003ehigh-speed square body fuse\u003c\/strong\u003e built for the definitive defense of solid-state electronics. Rated at a robust current capacity of \u003cstrong\u003e1250A\u003c\/strong\u003e and a maximum working potential of \u003cstrong\u003e690V\u003c\/strong\u003e, this specialized \u003cstrong\u003esemiconductor protection fuse\u003c\/strong\u003e limits let-through energy values ($I^2t$) to protect sensitive components like thyristors, IGBTs, and SCR arrays. Now manufactured under the premium Mersen umbrella, the SC33AR69V13CTF features reliable blade type or bolt-down terminal configurations, providing clean integration into low-latency electrical distribution networks.\u003c\/p\u003e\n\n  \u003c!-- SECTION 3: Technical Specifications --\u003e\n  \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n  \u003cdiv class=\"koeed-table-responsive\"\u003e\n    \u003ctable class=\"koeed-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eEngineering Parameter\u003c\/th\u003e\n          \u003cth\u003eTechnical Classification\u003c\/th\u003e\n          \u003cth\u003eOperational Value\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eBrand Manufacturer\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eOEM Brand Heritage\u003c\/td\u003e\n          \u003ctd\u003eFerraz Shawmut (Mersen)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eFactory Catalog Part Identifier\u003c\/td\u003e\n          \u003ctd\u003eSC33AR69V13CTF\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eSmart Product Code\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eUnique Material ID Reference\u003c\/td\u003e\n          \u003ctd\u003eA1046960\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eBody Size Configuration\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003ePhysical Frame Scale Standard\u003c\/td\u003e\n          \u003ctd\u003eSize 33 Architecture\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eRated Current ($I_n$)\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eContinuous Thermal Amperage Capacity\u003c\/td\u003e\n          \u003ctd\u003e1250A\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eRated Voltage ($U_n$)\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eMaximum Dielectric Arc Limit\u003c\/td\u003e\n          \u003ctd\u003e690V AC\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eFuse Class Utilization\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eOperational Tripping Slopes Category\u003c\/td\u003e\n          \u003ctd\u003eaR (Partial Range High-Speed Semiconductor Protection)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eTerminal Style\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eElectrical Interface Integration Type\u003c\/td\u003e\n          \u003ctd\u003eFlush-end blade tracking \/ End-mounting configuration style\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eInterrupting Rating (Breaking Capacity)\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eMaximum Safely Cleared Fault Current\u003c\/td\u003e\n          \u003ctd\u003e200 kA at 690V AC (Standard Operational Boundary)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eBody Material Matrix\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eStructural Enclosure Substrate\u003c\/td\u003e\n          \u003ctd\u003eHigh-strength ceramic body filled with high-purity quartz sand\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SECTION 4: Application Matrix --\u003e\n  \u003ch2\u003eApplication Matrix\u003c\/h2\u003e\n  \u003cdiv class=\"koeed-table-responsive\"\u003e\n    \u003ctable class=\"koeed-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eTarget Industrial System\u003c\/th\u003e\n          \u003cth\u003eDeployment Purpose\u003c\/th\u003e\n          \u003cth\u003eEngineering Value Delivered\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eHigh-Power Variable Frequency Drives (VFD)\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eDC bus short-circuit isolation\u003c\/td\u003e\n          \u003ctd\u003eFast sub-millisecond reaction prevents costly downstream inverter IGBT bridge damage during overcurrent spikes.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eIndustrial DC Rectifiers\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eSolid-state power device protection\u003c\/td\u003e\n          \u003ctd\u003eEnsures isolation of localized component failure modes before faults can propagate into multi-phase industrial transformers.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eUPS Systems \u0026amp; Soft Starters\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eCritical grid interface shielding\u003c\/td\u003e\n          \u003ctd\u003eMaintains precise low thermal let-through energy thresholds ($I^2t$) to shield delicate silicone control paths.\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SECTION 5: Koeed B2B Interactive Tool --\u003e\n  \u003ch2\u003eKoeed B2B Tool: High-Speed Fuse Thermal Derating Calibrator\u003c\/h2\u003e\n  \u003cp\u003eHigh-speed aR semiconductor fuses operate in demanding closed enclosures. Use this technical configuration utility to calculate the corrected operational continuous current limit based on environmental factors like ambient temperature and cooling air speed velocity inside your power panel.\u003c\/p\u003e\n  \n  \u003cdiv class=\"koeed-tool-container\"\u003e\n    \u003cdiv class=\"koeed-tool-grid\"\u003e\n      \u003cdiv class=\"koeed-input-group\"\u003e\n        \u003clabel for=\"koeed-ambient-temp\"\u003eAmbient Air Temperature (°C):\u003c\/label\u003e\n        \u003cinput type=\"number\" id=\"koeed-ambient-temp\" min=\"20\" max=\"70\" value=\"40\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"koeed-input-group\"\u003e\n        \u003clabel for=\"koeed-cooling-speed\"\u003eCooling Air Velocity (m\/s):\u003c\/label\u003e\n        \u003cselect id=\"koeed-cooling-speed\"\u003e\n          \u003coption value=\"1.0\"\u003eNatural Convection (Static Air)\u003c\/option\u003e\n          \u003coption value=\"1.1\" selected\u003eForced Air Speed 1.0 - 2.0 m\/s\u003c\/option\u003e\n          \u003coption value=\"1.22\"\u003eForced Air Speed \u0026gt; 2.5 m\/s\u003c\/option\u003e\n        \u003c\/select\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"koeed-input-group\"\u003e\n        \u003clabel for=\"koeed-nominal-current\"\u003eFuse Nominal Rating (A):\u003c\/label\u003e\n        \u003cinput type=\"number\" id=\"koeed-nominal-current\" value=\"1250\" readonly\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cbutton class=\"koeed-btn\" onclick=\"koeedCalculateFuseDerating()\"\u003eCompute Corrected Continuous Load\u003c\/button\u003e\n    \n    \u003cdiv class=\"koeed-result-panel\"\u003e\n      \u003cdiv\u003eMaximum Continuous Safe Operating Current ($I_{ob}$):\u003c\/div\u003e\n      \u003cdiv class=\"koeed-result-value\" id=\"koeed-fuse-output\"\u003e1187.5 A\u003c\/div\u003e\n      \u003cdiv style=\"margin-top: 8px; font-size: 0.85em; color: #666666;\" id=\"koeed-fuse-note\"\u003eCalculated using standardized thermal equations under standard IEC enclosures.\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cnoscript\u003e\n    \u003cdiv class=\"koeed-quote\"\u003e\n      \u003cstrong\u003eEngineering Deployment Note:\u003c\/strong\u003e When operating the Ferraz Shawmut SC33AR69V13CTF above a baseline ambient environment temperature of 40°C, an engineering calculation applying a factor of approximately 0.5% current restriction reduction per 1°C elevation is mandatory to preserve internal element stability.\n    \u003c\/div\u003e\n  \u003c\/noscript\u003e\n\n  \u003cscript\u003e\n    function koeedCalculateFuseDerating() {\n      var ambientTemp = parseFloat(document.getElementById('koeed-ambient-temp').value);\n      var speedFactor = parseFloat(document.getElementById('koeed-cooling-speed').value);\n      var nominalCurrent = 1250;\n      \n      if (isNaN(ambientTemp) || ambientTemp \u003c 0) {\n        alert(\"Please input a valid ambient working temperature.\");\n        return;\n      }\n      \n      var tempDerating = 1.0;\n      if (ambientTemp \u003e 40) {\n        tempDerating = 1.0 - ((ambientTemp - 40) * 0.006);\n      } else if (ambientTemp \u003c 40 \u0026\u0026 ambientTemp \u003e= 20) {\n        tempDerating = 1.0 + ((40 - ambientTemp) * 0.003);\n      }\n      \n      if (tempDerating \u003c 0.5) tempDerating = 0.5; \n      \n      var finalCurrent = nominalCurrent * tempDerating * (speedFactor === 1.0 ? 0.85 : (speedFactor === 1.1 ? 0.95 : 1.02));\n      \n      if (finalCurrent \u003e nominalCurrent * 1.05) {\n        finalCurrent = nominalCurrent * 1.05;\n      }\n      \n      document.getElementById('koeed-fuse-output').innerText = finalCurrent.toFixed(1) + \" Amperes (A)\";\n      document.getElementById('koeed-fuse-note').innerText = \"Combined Correction Factor: \" + (finalCurrent \/ nominalCurrent).toFixed(3) + \". Absolute continuous overcurrent tracking limit must not cross this boundary.\";\n    }\n  \u003c\/script\u003e\n\n  \u003c!-- SECTION 6: Troubleshooting \u0026 FAQ --\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \n  \u003ch3\u003eQ1: Can an aR class high-speed fuse like the SC33AR69V13CTF be used for standard motor branch circuit overload shielding?\u003c\/h3\u003e\n  \u003cp\u003eNo. Fuses marked with an **aR** classification provide partial-range protection optimized solely for short-circuit faults inside high-speed semiconductor environments. They cannot manage sustained low-level thermal overloads. For standard line-level installations, integrate an autonomous thermal overload relay or combine with a gG\/gM class distribution fuse network.\u003c\/p\u003e\n\n  \u003ch3\u003eQ2: Why must high-speed semiconductor fuses be torque-checked during panel maintenance?\u003c\/h3\u003e\n  \u003cp\u003eBecause semiconductor protection involves extremely high running currents up to 1250A. Any microscopic air gap or loose mounting bolt on the Size 33 flush-end terminals introduces parasitic contact resistance. This localized resistance acts as a heater, inducing premature element aging, nuisance trippings, and accelerated thermal fatigue.\u003c\/p\u003e\n\n  \u003ch3\u003eQ3: What causes a high-speed square body fuse to disfigure or show signs of external blackening?\u003c\/h3\u003e\n  \u003cp\u003eThis point points toward heavy arc energy dissipation inside the chamber during high-power short circuit extraction. The specialized high-purity quartz sand filling vaporizes to absorb the thermal energy and safely extinguish the electrical arc plasma. If external ceramic cracking or burning is visible, inspect all adjacent power semiconductor components for failure modes before mounting a replacement unit.\u003c\/p\u003e\n\n  \u003c!-- SECTION 7: Cross-Reference \u0026 Selection Guide --\u003e\n  \u003ch3\u003eCross-Reference Guide\u003c\/h3\u003e\n  \u003cp\u003eWhen executing maintenance cross-referencing or designing upgrade specifications, the following models feature corresponding form factors and electrical compatibility parameters:\u003c\/p\u003e\n  \u003cul class=\"koeed-list\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMersen \/ Ferraz Shawmut Legacy Reference:\u003c\/strong\u003e Replaces catalog part numbers matching the format PC33UD69V1250TF or specific variants within the A1046960 high-speed engineering ledger.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIndustry Competitor Alternates:\u003c\/strong\u003e Direct functional physical alignment with Size 3 high-speed square body flush-end fuses from Bussmann (such as 170M6416 or equivalent 1250A 690V AC series ratings). Always cross-check the let-through $I^2t$ parameters prior to hot-swapping operational industrial panels.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n\u003c\/div\u003e\n\n\u003c!-- Structured JSON-LD Data for AI Scraping Engines --\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"FAQPage\",\n      \"mainEntity\": [\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Can an aR class high-speed fuse like the SC33AR69V13CTF be used for standard motor branch circuit overload shielding?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"No. Fuses marked with an aR classification provide partial-range protection optimized solely for short-circuit faults inside high-speed semiconductor environments. They cannot manage sustained low-level thermal overloads.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Why must high-speed semiconductor fuses be torque-checked during panel maintenance?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Because semiconductor protection involves extremely high running currents up to 1250A. Any loose mounting bolt on the Size 33 flush-end terminals introduces parasitic contact resistance, leading to premature aging and nuisance trippings.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What causes a high-speed square body fuse to disfigure or show signs of external blackening?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"This points toward heavy arc energy dissipation inside the chamber during high-power short circuit extraction. The specialized high-purity quartz sand filling vaporizes to absorb the thermal energy and safely extinguish the electrical arc plasma.\"\n          }\n        }\n      ]\n    },\n    {\n      \"@type\": \"WebApplication\",\n      \"name\": \"High-Speed Fuse Thermal Derating Calibrator\",\n      \"applicationCategory\": \"BusinessApplication\",\n      \"operatingSystem\": \"All\",\n      \"browserRequirements\": \"Requires JavaScript. Requires HTML5.\",\n      \"description\": \"An interactive tool developed for industrial field technicians to calculate the corrected real-world safe carrying current thresholds for Mersen\/Ferraz Shawmut high-speed semiconductor square body fuses.\"\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"KOEED","offers":[{"title":"Default Title","offer_id":44006857670841,"sku":"305082811783","price":711.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/8476\/7929\/files\/s-l1600_dd91eef8-f309-4d77-9321-a718cc6338a6.jpg?v=1713826235","url":"https:\/\/koeed.com\/products\/1pcs-new-for-ferraz-shawmut-sc33ar69v13ctf-a1046960-1250a-690v-fuse","provider":"KOEED","version":"1.0","type":"link"}