{"product_id":"frs-r-125","title":"FRS-R-125 - 125 Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eFRS-R-125 - 125 Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMeet the FRS‑R‑125 from Eaton Bussmann — a high‑performance, dual‑element Class RK5 time‑delay fuse rated at 125 amps, engineered for dependable overcurrent protection in demanding commercial and industrial power systems. With support for up to 600 VAC and 300 VDC, it’s built to guard motors, transformers, and branch circuits reliably against both overloads and short circuits. Its 10‑second delay at 500 % of rated current enables safe handling of motor inrushes and equipment startups without nuisance trips, making it an ideal choice when rugged performance and long device life matter.\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\u003eTime‑Delay Dual‑Element Design:\u003c\/strong\u003e Allows the fuse to withstand short bursts of inrush current (e.g., during motor startup) before opening, reducing unwanted trips and extending system uptime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Interrupting Capacity:\u003c\/strong\u003e With a 200 kA interrupt rating at 600 VAC and 20 kA at 300 VDC, this fuse handles severe fault conditions without failing catastrophically.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Limiting Action:\u003c\/strong\u003e Minimizes let‑through energy during fault events, protecting downstream equipment and reducing stress on your system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlade‑End Connection:\u003c\/strong\u003e Designed for simple installation and replacement in compatible RK5 fuse blocks, helping reduce labor time and maintenance cost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Form \u0026amp; Long Service Life:\u003c\/strong\u003e Engineered for extended dependability under industrial conditions.\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\u003eAmperage Rating:\u003c\/strong\u003e 125 A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600 VAC \/ 300 VDC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Rating:\u003c\/strong\u003e 200 kA at 600 VAC \/ 20 kA at 300 VDC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTime Delay:\u003c\/strong\u003e Minimum 10 seconds at 500% of rated current\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class:\u003c\/strong\u003e RK5\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type:\u003c\/strong\u003e Blade‑end × Blade‑end\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApproximate Dimensions \u0026amp; Weight:\u003c\/strong\u003e ~9.63 in length × ~1.6 in diameter, ~1.05 lb (for 125A version)\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\u003cstrong\u003eComplies with UL 248‑12 and CSA C22.2 No. 248.12 standards for Class RK5 fuses.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCE‑Marked, indicating compliance with applicable European directives.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDual‑element construction and current‑limiting design align with Eaton’s strategic emphasis on energy‑efficient protection.\u003c\/strong\u003e\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\u003eThis Fuse is particularly well‑suited for applications where both reliable overload protection and robust short‑circuit response matter: motor control centers, combination starters, HVAC systems, lighting panels, and other industrial power distribution systems that experience high inrush currents or disruptive load events. Because of its time‑delay and current‑limiting features, you can often specify closer to full‑load amp values, optimize switchgear sizing, and reduce system cost.\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":50459192918315,"sku":"FRS-R-125","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459192951083,"sku":"FRS-R-125  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0848\/0758\/1995\/files\/FRSR125_02copy_1.png?v=1745356965","url":"https:\/\/store.circuitbreakersuperstore.com\/products\/frs-r-125","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}