{"product_id":"flsr225","title":"FLSR225 - 225 Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eFLSR225 - 225 Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNeed to replace a 225A Class RK5 fuse? The FLSR225 offers a specific combination of ratings worth checking before you make the swap. It is a 225-amp, 600V AC Class RK5 time-delay fuse with dual-element construction and a knife-blade design. The FLSR225 is also rated up to 300V DC, with a 20 kA interrupting rating at 300V DC, and it installs in a compatible fuse block, clip, or holder. If you're replacing an existing FLSR225, don't match on amperage alone—the Class RK5 designation, voltage, time-delay characteristic, interrupting requirements, knife-blade configuration, and mounting arrangement all deserve a quick check.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e225A continuous current rating – Made for applications specifically calling for a 225-amp fuse.\u003c\/li\u003e\n\u003cli\u003e600 V AC maximum rating – Suitable for compatible AC equipment operating within the published voltage range.\u003c\/li\u003e\n\u003cli\u003e300V DC maximum rating – Can also be used in correctly specified DC applications up to 300V.\u003c\/li\u003e\n\u003cli\u003eClass RK5 construction – An essential specification to check when you're matching an existing fuse or equipment requirement.\u003c\/li\u003e\n\u003cli\u003eTime-delay performance – Helps accommodate appropriate temporary startup and inrush currents that could cause a fast-acting fuse to open sooner.\u003c\/li\u003e\n\u003cli\u003eDual-element design – Delivers the operating characteristics associated with this time-delay fuse family.\u003c\/li\u003e\n\u003cli\u003eKnife-blade style – Fits compatible fuse blocks, clips, and holders designed for this configuration.\u003c\/li\u003e\n\u003cli\u003eNon-indicating design – The standard FLSR225 does not include an indication feature.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog Number:\u003c\/strong\u003e FLSR225\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e FLSR\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class:\u003c\/strong\u003e Class RK5\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Type:\u003c\/strong\u003e Dual-Element Time-Delay Fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Current Rating:\u003c\/strong\u003e 225A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum AC Voltage:\u003c\/strong\u003e 600V AC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum DC Voltage:\u003c\/strong\u003e 300V DC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpening:\u003c\/strong\u003e Slo-Blo \/ Time Lag (T) \/ Time Delay\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize \/ Configuration:\u003c\/strong\u003e Knife-Blade\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFamily Style:\u003c\/strong\u003e Dual Element Fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndicating:\u003c\/strong\u003e No\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Interrupting Rating:\u003c\/strong\u003e 20 kA at 300V DC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Listed AC Interrupt Amperage:\u003c\/strong\u003e 200,000A and 300,000A at 600V AC*\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Method:\u003c\/strong\u003e Fuse Block \/ Clip \/ Holder\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePG Holder:\u003c\/strong\u003e LFR60400 Series\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\u003cp\u003eFor the FLSR225, the supplied product information confirms it is Class RK5. Still, it does not provide enough catalog-specific information to accurately list individual UL, CSA, RoHS, or other certification and material-compliance declarations.\u003cbr\u003e\u003cbr\u003eFor a job where a particular certification or material standard is mandatory, check the current documentation for the exact FLSR225 before installation. That's especially important with electrical protection products—you want the certification attached to the exact catalog number you're using, not an assumption based on a similar fuse in the same family.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe FLSR225 is best considered when the equipment specification calls for a 225A, Class RK5, time-delay fuse with a knife-blade configuration. Its time-delay behavior becomes particularly useful in correctly matched equipment where a temporary rise in current is normal during startup or operation. Instead of treating every brief current increase like an immediate reason to open, the time-delay characteristic provides tolerance for appropriate short-duration inrush.\u003cbr\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.\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\u003eLittelfuse® is a registered trademark of Littelfuse, Inc. Products sold are surplus, used, or refurbished and are \u003cstrong\u003eNOT \u003c\/strong\u003esupplied by Littelfuse, Inc. or its affiliates.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"New In Box","offer_id":50459187577131,"sku":"FLSR225","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459187609899,"sku":"FLSR225  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/flsr225","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}