{"product_id":"flsr17-5-id","title":"FLSR17.5-ID - 17½ Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eFLSR17.5-ID - 17½ Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUpgrade your protection strategy with the Littelfuse FLSR17.5ID 17½ Amp 600 V Time‑Delay Class RK5 Indicating Fuse. Designed for demanding industrial and commercial systems, this dual‑element cartridge fuse delivers high performance, built‑in visual status indication, and high fault‑interruption capacity. Whether you’re covering motor control centers, HVAC units, or panel‑board feeders, the FLSR17.5ID gives your operation the kind of trustworthy protection that keeps equipment safe and downtime low.\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 Combines the advantages of a slow‑blow (time‑delay) element with current‑limiting functionality. This means the fuse tolerates harmless surges (such as motor starts) yet swiftly responds to short‑circuit events—helping protect both short‑term and sustained overload conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt‑In Visual Indicator:\u003c\/strong\u003e The “ID” version features a visual window that clearly shows when the fuse has operated (blown). Quick, on‑the‑spot diagnostics save time, reduce service calls, and eliminate the guesswork of maintenance inspection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Interrupt Rating:\u003c\/strong\u003e With interrupt ratings of approximately 200,000 A at 600 V AC and 20,000 A at 300 V DC, the FLSR17.5ID is engineered to manage high fault currents and provide real protection in serious fault events.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCartridge Construction \u0026amp; Compact Size:\u003c\/strong\u003e The cylindrical, cartridge‑style fuse fits standard Class RK5 holders and fuse blocks—making installation straightforward and replacement efficient.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperational Efficiency \u0026amp; Lower Maintenance Costs:\u003c\/strong\u003e Because the unit enables faster diagnosis (via visual indication) and a high level of fault management, it helps reduce unplanned downtime, limit equipment damage, and ultimately lower your service and replacement expenses over time.\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\u003eContinuous Current Rating:\u003c\/strong\u003e 17.5 Amps\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\n\u003cul\u003e\n\u003cli\u003e~200,000 A at 600 V AC\u003c\/li\u003e\n\u003cli\u003e~20,000 A at 300 V DC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class \u0026amp; Family:\u003c\/strong\u003e Class RK5, FLSR_ID Series (indicating)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle \/ Construction:\u003c\/strong\u003e Dual‑element time‑delay cartridge fuse with visual indicator window\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e Approximately 13\/16″ diameter × 5″ length (for 17.5 A version)\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\u003eUL Listed to UL 248‑12 (Class RK5)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCSA Certified (File No. LR29862)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRoHS‑compliant and manufactured using conscientious processes and materials to support modern environmental standards.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePatented visual‑indication design supports enhanced safety, improved fault visibility, and quicker maintenance workflows.\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\u003eMotor control centers (MCCs) and branch circuits driving pumps, compressors or conveyors\u003c\/li\u003e\n\u003cli\u003eHVAC and refrigeration systems where inrush currents are present, and reliability is essential\u003c\/li\u003e\n\u003cli\u003eElectrical distribution panels and feeders in manufacturing plants, processing facilities, or heavy‑duty equipment installations\u003c\/li\u003e\n\u003cli\u003eSwitchboard mains or feeders where fault‑current potential is high and a fast indication of fuse status helps keep operations running\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":50459187216683,"sku":"FLSR17.5-ID","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459187249451,"sku":"FLSR17.5-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\/flsr17-5-id","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}