{"product_id":"flsr004-id","title":"FLSR004-ID - 4 Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eFLSR004-ID - 4 Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen you need precision protection for critical and sensitive equipment, the Littelfuse FLSR004ID delivers. This 4-amp, dual‑element time‑delay cartridge fuse is built to handle the rigors of industrial control panels, motor‑driven systems, switchboards, and manufacturing automation. With its 600 V AC\/300 V DC voltage ratings and a high interrupting capability, the FLSR004ID gives you dependable defense against both overloads and short‑circuits. The built‑in blown‑fuse indicator adds a visual cue for quicker troubleshooting and less downtime in demanding environments.\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 \/ Slo‑Blo Design:\u003c\/strong\u003e Handles temporary inrush currents (such as motor starts) without unnecessary blowing, minimizing service interruptions and replacement costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Voltage Capability:\u003c\/strong\u003e Rated for up to 600 V AC and 300 V DC, giving versatility across a wide range of industrial systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Cartridge Style Construction:\u003c\/strong\u003e The standard 13\/16\"×5\" barrel provides secure mounting in fuse holders and panels, supporting safe, standardized installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual Indicating Feature:\u003c\/strong\u003e The built‑in indicator window clearly shows when the fuse has operated, enabling faster diagnosis and less downtime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Dual‑Element \u0026amp; Current‑Limiting Protection:\u003c\/strong\u003e Helps restrict fault current and provides superior protection under overload and short‑circuit conditions.\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 4 Amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Ratings:\u003c\/strong\u003e 600 V AC \/ 300 V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Rating:\u003c\/strong\u003e Up to 200 kA AIC at 600 V AC; 20 kA at 300 V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class:\u003c\/strong\u003e Class RK5 (UL 248‑12)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Single‑barrel industrial cartridge style\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpening Characteristic:\u003c\/strong\u003e Time‑delay (also referred to as “slo‑blo”) dual‑element\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)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCSA Certified:\u003c\/strong\u003e (File LR29862)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned to help meet environmental standards:\u003c\/strong\u003e (check with manufacturer for full RoHS and material disclosures)\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\u003eLow‑amperage motor protection such as small drive systems or auxiliary motors.\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels and feeders where inrush currents may occur — the time‑delay design prevents nuisance opening.\u003c\/li\u003e\n\u003cli\u003eCommercial and industrial electronic equipment requires reliable protection in demanding environments.\u003c\/li\u003e\n\u003cli\u003ePower distribution systems in manufacturing, process automation, machine tools, or other critical loads where quick fault indication adds value.\u003c\/li\u003e\n\u003cli\u003eSensitive circuits where the visual status of the fuse (indicating feature) helps maintenance teams act faster and reduce downtime.\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":50459182793003,"sku":"FLSR004-ID","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459182825771,"sku":"FLSR004-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\/flsr004-id","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}