{"product_id":"flsr012-id","title":"FLSR012-ID - 12Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eFLSR012-ID - 12Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen system uptime is critical, the Littelfuse FLSR012ID 12 Amp 600‑Volt Time Delay Class RK5 Indicating Fuse delivers dependable protection while streamlining maintenance. Designed for industrial‑ and commercial‑power applications, this dual‑element, time‑delay fuse handles both short‑circuit and overload faults—reducing the risk of unexpected downtime. What sets it apart is the built‑in visual indicator: when the fuse opens, you can quickly spot the fault without tedious disassembly. That means faster diagnostics, fewer interruptions, and less hassle for your maintenance team—whether you’re running motor control centers, HVAC systems, heavy machinery, or electrical distribution panels.\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) design:\u003c\/strong\u003e Provides flexible protection by allowing brief surges (such as during motor starts) while still safeguarding against prolonged overloads and fault conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated visual blown‑fuse indicator:\u003c\/strong\u003e The window turns dark when the element has opened, enabling quick recognition of a failed fuse and minimizing operator downtime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh interrupting rating and current‑limiting behavior:\u003c\/strong\u003e At 600 V AC the interrupt rating is up to 200,000 A (symmetrical) and for 300 V DC it’s up to 20,000 A, offering premium fault‐clear performance in challenging applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTime‑delay (slo‑blo) capability:\u003c\/strong\u003e Helps prevent nuisance openings during transient events, while still reacting decisively to true fault conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCost‑efficient protection for mission‑critical systems:\u003c\/strong\u003e By reducing destructive fault currents and enabling rapid identification of failed components, it helps maximize system life and minimize repair costs.\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\u003eCurrent Rating:\u003c\/strong\u003e 12 Amps (continuous)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600 V AC \/ 300 V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Rating:\u003c\/strong\u003e 200 kA (600 V AC); 20 kA (300 V DC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class:\u003c\/strong\u003e Class RK5 dual‑element, time delay (Slo‑Blo)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndication Feature:\u003c\/strong\u003e Yes (visual indicator shows fuse has opened)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction Style:\u003c\/strong\u003e Industrial cartridge fuse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFamily Style:\u003c\/strong\u003e FLSR_ID Series (Indicating)\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 Listed:\u003c\/strong\u003e (File E81895) and CSA Certified (File LR29862) under applicable standards for low‑voltage fuses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS compliant:\u003c\/strong\u003e Material selection and manufacturing processes designed to meet modern environmental and safety guidelines. (Manufacturer’s standard reference)\u003c\/li\u003e\n\u003cli\u003eBuilt via quality-controlled processes and designed for reliable service in industrial power environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMotor control centers and branch circuits where motor inrush and transient loads exist\u003c\/li\u003e\n\u003cli\u003eHVAC, refrigeration and compressor systems that face short‑term startup surges\u003c\/li\u003e\n\u003cli\u003eHeavy machinery, manufacturing systems, and conveyor systems are vulnerable to overloads or short circuits\u003c\/li\u003e\n\u003cli\u003eElectrical distribution panels, switchboards, feeder circuits and service‑entrance protection where Class RK5 fuses are specified\u003c\/li\u003e\n\u003cli\u003eWater pumps, large fans, industrial motors, and systems requiring both high short‑circuit fault‑clear capability and visual maintenance feedback\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":50459184267563,"sku":"FLSR012-ID","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459184300331,"sku":"FLSR012-ID  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0848\/0758\/1995\/files\/FLSR15IDcopy.png?v=1745355868","url":"https:\/\/store.circuitbreakersuperstore.com\/products\/flsr012-id","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}