{"product_id":"frn-r-350","title":"FRN-R-350 - 350Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eFRN-R-350 - 350Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe FRN‑R‑350 time‑delay, dual‑element fuse from the well‑known Eaton Bussmann line delivers dependable protection for demanding commercial and industrial circuits. Rated for 350 amps at 250 VAC and 125 VDC, it’s designed to keep your motor loads, transformer feeds, and other high‑inrush applications running smoothly under pressure. Using current‑limiting technology, this fuse significantly reduces let‑through energy in the event of a fault, helping protect downstream equipment and minimize collateral damage. With its blade‑end × blade‑end design and Class RK5 rating, the FRN‑R‑350 is built for serious performance—and built to be trusted.\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\u003eDual‑element time‑delay architecture:\u003c\/strong\u003e Offers overload protection and short‑circuit protection in one compact unit, simplifying design and inventory.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent‑limiting capability:\u003c\/strong\u003e Minimizes the peak let‑through energy (I²t) during fault conditions, helping preserve downstream equipment and reducing maintenance costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh fault‑current capacity:\u003c\/strong\u003e With an interrupt rating of 200 kA at 250 VAC and 20 kA at 125 VDC, it’s ready for severe fault conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon‑indicating design:\u003c\/strong\u003e Built for reliability when you don’t need a fuse that visually signals when it has blown.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass RK5 rating:\u003c\/strong\u003e A trusted standard in industrial circuit protection, giving you confidence that the component is up to the task.\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 FRN‑R‑350\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 350 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 250 VAC \/ 125 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Rating:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e200 kA at 250 VAC\u003c\/li\u003e\n\u003cli\u003e20 kA at 125 VDC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResponse Time:\u003c\/strong\u003e Approximately 10 seconds at 500% overload\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class:\u003c\/strong\u003e RK5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type:\u003c\/strong\u003e Blade end × blade end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Indicator:\u003c\/strong\u003e Non‑indicating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eLength: 8.63” (219 mm)\u003c\/li\u003e\n\u003cli\u003eWidth: 2.38” (60.5 mm)\u003c\/li\u003e\n\u003cli\u003eHeight: 2.38” (60.5 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approximately 1.95 lbs\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\u003eIndustry Standards:\u003c\/strong\u003e This fuse meets or exceeds major industry standards, providing assurance for installation in North American and beyond code‑compliant systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e It is CE‑marked for product safety and environmental compliance. It’s also UL 248‑12 compliant for fuse standards, tested to handle high fault currents with its Class RK5 rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe FRN‑R‑350 is ideal for harsh environments where large fault currents and short‑duration overloads are common. Typical applications include motor control centers, HVAC systems, power distribution panels, and large machinery disconnects. If your facility demands both uptime reliability and maximum protection for downstream assets, this fuse is engineered for the job.\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":50459190460715,"sku":"FRN-R-350","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459190493483,"sku":"FRN-R-350  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0848\/0758\/1995\/files\/FRNR400copy.png?v=1745357095","url":"https:\/\/store.circuitbreakersuperstore.com\/products\/frn-r-350","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}