{"product_id":"frs-r-20","title":"FRS-R-20 - 20Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eFRS-R-20 - 20Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMeet the FRS‑R‑20 from the renowned Eaton Bussmann series—a 20-amp, dual‑element, time‑delay fuse crafted for demanding industrial and commercial applications. If your system needs to handle motor start surges, transformer energizing, and other abrupt inrush events without nuisance tripping, this fuse delivers. Rated at 600 Vac \/ 300 Vdc, and capable of interrupting 200 kA in AC and 20 kA in DC fault conditions, the FRS‑R‑20 provides peace of mind by limiting fault let‑through energy, protecting downstream equipment, and helping maximize uptime. With a built‑in 10‑second delay at 500 % of rated current, you get dependable protection that tolerates benign surges while immediately responding to dangerous overloads—an essential safeguard for mission‑critical motor control centers, panelboards, HVAC systems, and other heavy loads.\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 Lets you avoid nuisance trips during harmless inrushes, such as motor startups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent‑limiting performance:\u003c\/strong\u003e Drastically reduces let‑through energy (I²t) during fault events, protecting sensitive downstream components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh interrupting ratings:\u003c\/strong\u003e 200 kA at 600 Vac, 20 kA at 300 Vdc mean the fuse can safely clear large faults with minimal collateral stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for heavy‑duty environments:\u003c\/strong\u003e Ideal for motors, transformers, inductive loads, and systems where reliability and protection matter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact cartridge format:\u003c\/strong\u003e Fits standard holders (cartridge style) and integrates easily into existing industrial or commercial power distribution 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 FRS‑R‑20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 20 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600 Vac \/ 300 Vdc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Rating:\u003c\/strong\u003e 200 kA AC (600 Vac) \/ 20 kA DC (300 Vdc)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTime Delay:\u003c\/strong\u003e Minimum 10 seconds at 500% of rated current (inrush tolerance)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Type:\u003c\/strong\u003e Class RK5, dual‐element, time‑delay, non‑indicating (standard)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Approximately 5.0 in length and 0.81 in diameter for the 20 A version.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e ~0.16 lb (0.16 lb quoted; actual manufacturer may vary slightly)\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\u003eUL 248‑12 certified:\u003c\/strong\u003e (Class RK5 fuses)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCSA C22.2 No. 248.12 certified\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCE marked:\u003c\/strong\u003e For applicable international markets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e While the manufacturer does not always list lead‑free\/RoHS status for this specific model, consult Eaton’s full datasheet for your region if that’s a requirement in your facility.\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 thrives in applications where heavy loads and transient inrush currents are the norm—not the exception. Use it in motor control centers, industrial panelboards, HVAC units, machine disconnects, and branch circuits where you want to minimize downtime and maximize protection. It’s especially well-suited when you need a fuse that can “ride through” brief surges without tripping but instantly act when there’s a real fault.\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":50459193540907,"sku":"FRS-R-20","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459193573675,"sku":"FRS-R-20  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0848\/0758\/1995\/files\/FRSR10copy_c514ee2f-16bb-4376-a650-16a132e51338.png?v=1748458252","url":"https:\/\/store.circuitbreakersuperstore.com\/products\/frs-r-20","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}