{"product_id":"ferraz-shawmut-trs50r-50a-class-rk5-tri-onic-time-delay-fuse-600v-ac-300v-dc","title":"Ferraz Shawmut TRS50R — 50A Class RK5 Tri‑Onic Time‑Delay Fuse (600V AC \/ 300V DC)","description":"\u003ch2\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003cstrong\u003eFerraz Shawmut TRS50R\u003c\/strong\u003e is a \u003cstrong\u003e50‑amp, Class RK5, Tri‑Onic® time‑delay fuse\u003c\/strong\u003e engineered for reliable protection of motors, transformers, feeders, and branch circuits. This fuse provides \u003cstrong\u003ecurrent‑limiting performance\u003c\/strong\u003e to reduce fault energy and protect downstream equipment, while its \u003cstrong\u003etime‑delay element\u003c\/strong\u003e supports high inrush loads such as motor startups and transformer energizing without nuisance tripping.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAccording to multiple listings, the TRS50R is rated for \u003cstrong\u003e50A\u003c\/strong\u003e, \u003cstrong\u003e600V AC\u003c\/strong\u003e, and \u003cstrong\u003e300V DC\u003c\/strong\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec2\" aria-label=\"sec2, this will take you to\" tabindex=\"0\"\u003esec2\u003c\/span\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec10\" aria-label=\"sec10, this will take you to\" tabindex=\"0\"\u003esec10\u003c\/span\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec15\" aria-label=\"sec15, this will take you to\" tabindex=\"0\"\u003esec15\u003c\/span\u003e. It features \u003cstrong\u003edual‑element time‑delay construction\u003c\/strong\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec2\" aria-label=\"sec2, this will take you to\" tabindex=\"0\"\u003esec2\u003c\/span\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec10\" aria-label=\"sec10, this will take you to\" tabindex=\"0\"\u003esec10\u003c\/span\u003e, \u003cstrong\u003ecurrent‑limiting capability\u003c\/strong\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec10\" aria-label=\"sec10, this will take you to\" tabindex=\"0\"\u003esec10\u003c\/span\u003e, and a \u003cstrong\u003e5.5-inch length with 1.06-inch diameter\u003c\/strong\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec10\" aria-label=\"sec10, this will take you to\" tabindex=\"0\"\u003esec10\u003c\/span\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec15\" aria-label=\"sec15, this will take you to\" tabindex=\"0\"\u003esec15\u003c\/span\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis fuse is part of the \u003cstrong\u003eTri‑Onic TRS‑R series\u003c\/strong\u003e, designed specifically for industrial motor circuits and general-purpose overcurrent protection\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec14\" aria-label=\"sec14, this will take you to\" tabindex=\"0\"\u003esec14\u003c\/span\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec21\" aria-label=\"sec21, this will take you to\" tabindex=\"0\"\u003esec21\u003c\/span\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e⭐ \u003cstrong\u003eKey Features \u0026amp; Benefits\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e50A, 600VAC \/ 300VDC rating\u003c\/strong\u003e for industrial circuits\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec10\" aria-label=\"sec10, this will take you to\" tabindex=\"0\"\u003esec10\u003c\/span\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec15\" aria-label=\"sec15, this will take you to\" tabindex=\"0\"\u003esec15\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTri‑Onic® dual‑element time‑delay\u003c\/strong\u003e handles motor and transformer inrush currents\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec10\" aria-label=\"sec10, this will take you to\" tabindex=\"0\"\u003esec10\u003c\/span\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec18\" aria-label=\"sec18, this will take you to\" tabindex=\"0\"\u003esec18\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCurrent‑limiting design\u003c\/strong\u003e reduces peak let‑through energy\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec10\" aria-label=\"sec10, this will take you to\" tabindex=\"0\"\u003esec10\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eClass RK5 fuse\u003c\/strong\u003e compatible with standard RK5 fuse blocks\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec2\" aria-label=\"sec2, this will take you to\" tabindex=\"0\"\u003esec2\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e5.5\" length × 1.06\" diameter\u003c\/strong\u003e standard cartridge size\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec10\" aria-label=\"sec10, this will take you to\" tabindex=\"0\"\u003esec10\u003c\/span\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec15\" aria-label=\"sec15, this will take you to\" tabindex=\"0\"\u003esec15\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eEngineered for motors, transformers, feeders, and branch circuits\u003c\/strong\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec14\" aria-label=\"sec14, this will take you to\" tabindex=\"0\"\u003esec14\u003c\/span\u003e[sec21](#sentenceindex-sec21]\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e🔧 \u003cstrong\u003eUses \/ Applications\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMotor circuit protection (high inrush loads)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTransformer protection\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFeeder and branch‑circuit protection\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eService entrance equipment\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial control panels\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHVAC, pumps, and manufacturing equipment\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e📊 \u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv role=\"group\" aria-label=\"Scrollable table\" tabindex=\"0\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth scope=\"col\"\u003e\u003cstrong\u003eDetail\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eFerraz Shawmut \/ Mersen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eTRS‑R (Tri‑Onic®)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eTRS50R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAmp Rating\u003c\/th\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eVoltage Rating\u003c\/th\u003e\n\u003ctd\u003e600V AC \/ 300V DC\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec10\" aria-label=\"sec10, this will take you to\" tabindex=\"0\"\u003esec10\u003c\/span\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec15\" aria-label=\"sec15, this will take you to\" tabindex=\"0\"\u003esec15\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFuse Class\u003c\/th\u003e\n\u003ctd\u003eRK5\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec2\" aria-label=\"sec2, this will take you to\" tabindex=\"0\"\u003esec2\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eType\u003c\/th\u003e\n\u003ctd\u003eDual‑Element, Time‑Delay\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec2\" aria-label=\"sec2, this will take you to\" tabindex=\"0\"\u003esec2\u003c\/span\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec10\" aria-label=\"sec10, this will take you to\" tabindex=\"0\"\u003esec10\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBody Style\u003c\/th\u003e\n\u003ctd\u003eCartridge Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e1.06\" × 5.5\"\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec10\" aria-label=\"sec10, this will take you to\" tabindex=\"0\"\u003esec10\u003c\/span\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec15\" aria-label=\"sec15, this will take you to\" tabindex=\"0\"\u003esec15\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFeatures\u003c\/th\u003e\n\u003ctd\u003eCurrent‑Limiting\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec10\" aria-label=\"sec10, this will take you to\" tabindex=\"0\"\u003esec10\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eApplications\u003c\/th\u003e\n\u003ctd\u003eMotors, transformers, feeders, branch circuits\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec14\" aria-label=\"sec14, this will take you to\" tabindex=\"0\"\u003esec14\u003c\/span\u003e\u003cspan role=\"button\" data-url=\"https:\/\/#sentenceindex-sec21\" aria-label=\"sec21, this will take you to\" tabindex=\"0\"\u003esec21\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e🔄 \u003cstrong\u003eCross‑Reference \/ Interchange Table\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv role=\"group\" aria-label=\"Scrollable table\" tabindex=\"0\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth scope=\"col\"\u003e\u003cstrong\u003eEquivalent \/ Related Part Numbers\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFerraz Shawmut \/ Mersen\u003c\/th\u003e\n\u003ctd\u003eTRS50R (OEM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBussmann\u003c\/th\u003e\n\u003ctd\u003eFRS‑R‑50 (verify Class RK5 match)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eLittelfuse\u003c\/th\u003e\n\u003ctd\u003eFLSR50 (verify dimensions \u0026amp; interrupt rating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eGeneral Replacement\u003c\/th\u003e\n\u003ctd\u003eMust match \u003cstrong\u003eClass RK5\u003c\/strong\u003e, \u003cstrong\u003e50A\u003c\/strong\u003e, \u003cstrong\u003e600V\u003c\/strong\u003e, \u003cstrong\u003etime‑delay\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"E166","offers":[{"title":"Default Title","offer_id":48878673690843,"sku":"WALL NND31B","price":11.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0504\/9578\/3088\/files\/rn-image_picker_lib_temp_561d972f-270d-4cdd-9964-c6579da172b3.jpg?v=1781553597","url":"https:\/\/freemanliquidators.com\/products\/ferraz-shawmut-trs50r-50a-class-rk5-tri-onic-time-delay-fuse-600v-ac-300v-dc","provider":"Freeman Liquidators","version":"1.0","type":"link"}