{"product_id":"jjn-400","title":"JJN-400 - 400Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eJJN-400 - 400Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eProtect your high‑power industrial equipment with the JJN‑400 fuse, built for demanding electrical environments and delivering consistent overcurrent protection when you need it most. With a 400 amp rating, this Class T fuse gives you current‑limiting performance that prevents damaging surges from impacting Variable Frequency Drives (VFDs), large motors or major power distribution systems. With an interrupting capacity of 200 kA at 300 VAC and 20 kA at 160 VDC, the JJN‑400 stands up to serious fault‑current events and clears them quickly and cleanly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast‑acting, current‑limiting design:\u003c\/strong\u003e Clears overcurrent events in a snap, helping protect sensitive equipment and minimize downtime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy‑duty bolted blade end × bolted blade end connection:\u003c\/strong\u003e Provides solid, stable contact for high‑amperage environments and helps reduce maintenance headaches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon‑indicating type:\u003c\/strong\u003e Simple design, reliable performance – ideal where ongoing monitoring isn’t required but protection is essential.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh interrupt rating:\u003c\/strong\u003e 200 kA at 300 VAC and 20 kA at 160 VDC ensure that even extreme fault currents get handled safely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear specification for sizing:\u003c\/strong\u003e 400‑amp rating makes selection straightforward for large loads, motor controls, and other power‑critical systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog Number:\u003c\/strong\u003e JJN‑400\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 400 Amps\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 300 VAC \/ 160 VDC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Capacity:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e200 kA at 300 VAC\u003c\/li\u003e\n\u003cli\u003e20 kA at 160 VDC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class:\u003c\/strong\u003e Class T\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Type:\u003c\/strong\u003e Non‑Indicating\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type:\u003c\/strong\u003e Bolted blade end × bolted blade end\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eLength: approx. 2.75″\u003c\/li\u003e\n\u003cli\u003eHeight: 1″\u003c\/li\u003e\n\u003cli\u003eWidth: 1″\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e ≈ 0.25 lb\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Sold individually (1 unit)\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Compliance and Certifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCE Marked:\u003c\/strong\u003e Meets European quality and safety requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Manufactured without certain hazardous substances\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards Compliance:\u003c\/strong\u003e Conforms to UL 248‑15 and CSA C22.2 No. 248.15\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIf you’re running large‑scale VFDs, handling high‑capacity motor loads, managing substantial power distribution systems or protecting critical electrical infrastructure, the JJN‑400 is a dependable choice. It’s tailored to environments where fault currents are strong and equipment is both expensive and essential. Use it when you need a dependable, straightforward fuse solution that won’t compromise under pressure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\n\u003cdiv\u003e\n\u003cblockquote\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eUse of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. All trademarks and registered trademarks are the property of their respective owners.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mersen","offers":[{"title":"New In Box","offer_id":50459202847019,"sku":"JJN-400","price":94.0,"currency_code":"USD","in_stock":true},{"title":"Refurbished","offer_id":50459202879787,"sku":"JJN-400  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/jjn-400","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}