{"product_id":"flsr090","title":"FLSR090 - 90Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eFLSR090 - 90Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMotors and transformers can ask a lot from a circuit the moment they're switched on. That brief current jump is normal, but it still has to be accounted for when selecting the right fuse. The FLSR090 is a 90A Class RK5 time-delay fuse made for applications where temporary startup current is expected. Its dual-element design gives the fuse time-delay characteristics, allowing appropriate short-duration inrush to pass while still protecting against sustained overloads and short circuits. If you're matching an existing fuse or working from an equipment specification that calls for 90A, Class RK5, time-delay protection, those details make the FLSR090 worth a closer look.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e90A continuous rating for circuits specified for 90-amp fuse protection.\u003c\/li\u003e\n\u003cli\u003eClass RK5 dual-element construction provides time-delay operation for compatible electrical loads.\u003c\/li\u003e\n\u003cli\u003eRated up to 600VAC and 300VDC.\u003c\/li\u003e\n\u003cli\u003eSlo-Blo \/ time-delay response helps accommodate appropriate short-term startup and inrush current.\u003c\/li\u003e\n\u003cli\u003eProtects against sustained overloads and short circuits when properly applied.\u003c\/li\u003e\n\u003cli\u003eKnife-blade construction is designed for use with the appropriate fuse block, clip, or holder.\u003c\/li\u003e\n\u003cli\u003eNon-indicating design for applications where built-in fuse-status indication isn't required.\u003c\/li\u003e\n\u003cli\u003eSpecified with the LFR60100 Series PG holder.\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 FLSR090\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\u003eFamily Style:\u003c\/strong\u003e Dual Element Fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Current Rating:\u003c\/strong\u003e 90A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum AC Voltage:\u003c\/strong\u003e 600VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum DC Voltage:\u003c\/strong\u003e 300VDC\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\u003eAC Interrupt Amperage:\u003c\/strong\u003e 200,000A at 600VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional Manufacturer-Specified AC Interrupt Amperage:\u003c\/strong\u003e 300,000A at 600VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Interrupting Rating:\u003c\/strong\u003e 20,000A at 300VDC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize \/ Construction:\u003c\/strong\u003e Knife-Blade\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\u003eMounting:\u003c\/strong\u003e Fuse Block \/ Clip \/ Holder\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePG Holder:\u003c\/strong\u003e LFR60100 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\u003eThe FLSR090 is identified as a Class RK5 fuse. That's an important part of the specification, but it isn't the only detail to check when matching a fuse to an electrical system. Current, voltage, interrupting capacity, opening characteristics, and physical configuration matter too.\u003cbr\u003e\u003cbr\u003eIf your project requires specific UL, CSA, RoHS, REACH, environmental, or material-compliance documentation, verify the current documentation for the FLSR090 itself. That avoids assuming a particular approval or declaration applies simply because it appears on another fuse within the same product 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 FLSR090 is particularly useful when a short burst of higher current is simply part of getting the equipment running. A motor is a good example. Starting current can be considerably higher than normal running current, yet that doesn't necessarily indicate an electrical problem. Transformers can also experience an initial inrush when energized.\u003cbr\u003e\u003cbr\u003eThat's the kind of situation where a time-delay fuse earns its place. The FLSR090 can tolerate appropriate short-duration inrush while remaining available to respond when an overload continues, or a short circuit develops.\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":50459185938731,"sku":"FLSR090","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459185971499,"sku":"FLSR090  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/flsr090","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}