{"product_id":"tr4r","title":"TR4R - 4 Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eTR4R - 4 Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKeep your electrical systems running safely and efficiently with the Mersen TR4R Tri-Onic Class RK5 Time-Delay Fuse. Designed for precision and reliability, this 4-amp fuse provides strong overcurrent protection for both industrial and commercial electrical applications. Its dual-element, time-delay design allows it to handle short bursts of current — such as motor startups or transformer energizing — without interrupting power unnecessarily. That means your equipment gets the protection it needs without sacrificing uptime or performance. Built to perform under demanding conditions, the TR4R fuse offers dependable service you can count on day after day.\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\u003eHandles Startup Surges Smoothly –\u003c\/strong\u003e The time-delay feature allows temporary inrush currents to pass safely, helping motors and transformers start without unwanted shutdowns.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtects Equipment During Faults –\u003c\/strong\u003e Its current-limiting ability reduces the amount of energy let through during short circuits, helping to minimize damage and downtime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Misapplication –\u003c\/strong\u003e The rejection-style base ensures the right fuse is always used in compatible fuse blocks, improving safety and ease of maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for Tough Environments –\u003c\/strong\u003e The fiberglass-reinforced body and silica filler enhance stability and provide excellent arc quenching performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy to Identify –\u003c\/strong\u003e Clear labeling with a metal-embossed catalog number and date code simplifies inspection, replacement, and recordkeeping.\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\u003eVoltage Rating:\u003c\/strong\u003e 250 VAC \/ 160 VDC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e 4 Amps\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Rating:\u003c\/strong\u003e 200 kA AC \/ 20 kA DC\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\u003eSpeed\/Characteristic:\u003c\/strong\u003e Time-Delay\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Clip\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Type:\u003c\/strong\u003e Ferrule (Copper)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e PolyTube (Fiberglass)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 14.3 mm (Diameter) x 50.8 mm (Length)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.0168 kg\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\u003eROHS Compliant:\u003c\/strong\u003e Yes\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL Listed:\u003c\/strong\u003e Standard 248-12, File E2137\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCSA Certified:\u003c\/strong\u003e Standard C22.2 No. 248.12\u003cbr\u003e\n\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 Mersen TR4R fuse is ideal for a wide range of electrical setups where safety and reliability are top priorities. It’s especially well-suited for:\u003c\/li\u003e\n\u003cli\u003eMotor Circuits\u003c\/li\u003e\n\u003cli\u003eTransformers\u003c\/li\u003e\n\u003cli\u003eService Entrance Equipment\u003c\/li\u003e\n\u003cli\u003eFeeders and Branch Circuits\u003c\/li\u003e\n\u003cli\u003eGeneral-Purpose Industrial and Commercial Systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cblockquote\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003e\u003cbr\u003e\u003cbr\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.\u003cstrong\u003e CIRCUIT BREAKER SUPERSTORE®\u003c\/strong\u003e is an independent reseller and is \u003cstrong\u003enot \u003c\/strong\u003ean authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do \u003cstrong\u003enot\u003c\/strong\u003e apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eMersen® is a registered trademark of Mersen S.A. Products sold are surplus, used, or refurbished and are \u003cstrong\u003eNOT \u003c\/strong\u003esupplied by Mersen S.A. or its affiliates.\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":50459296530731,"sku":"TR4R","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459296563499,"sku":"TR4R  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/tr4r","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}