{"product_id":"ecsr300","title":"ECSR300 - 300Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eECSR300 - 300Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ECSR300 Eaton Edison fuse is a 300-amp Class RK5 dual-element fuse used in heavier electrical systems where you need protection that can keep up with real load conditions. It’s commonly found in industrial distribution panels, large motor circuits, and feeder applications, basically anywhere you’ve got steady demand and still need solid fault protection behind it.\u003c\/p\u003e\n\u003cp\u003eWhat makes this fuse practical in the field is how it deals with everyday electrical behavior. Large motors and transformers don’t always start clean—they pull a short burst of higher current when they energize. The dual-element, time-delay design gives the ECSR300 enough tolerance to ride through those normal startup spikes without blowing. But when there’s an actual overload or short circuit, it clears the fault quickly and helps protect the rest of the system from damage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e300A Class RK5 dual-element fuse for heavy-duty electrical systems\u003c\/li\u003e\n\u003cli\u003e600V rating for commercial and industrial power distribution\u003c\/li\u003e\n\u003cli\u003eTime-delay design helps handle normal motor and transformer inrush\u003c\/li\u003e\n\u003cli\u003e200kA interrupt rating for high fault current protection\u003c\/li\u003e\n\u003cli\u003eDual-element construction improves system coordination\u003c\/li\u003e\n\u003cli\u003eFinger-safe design for safer handling in tight panels\u003c\/li\u003e\n\u003cli\u003eFits standard RK5 fuse blocks and holders\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\u003eCatalog Number:\u003c\/strong\u003e ECSR300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Fuse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass:\u003c\/strong\u003e RK5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 300A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupt Rating:\u003c\/strong\u003e 200 kAIC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElement Type:\u003c\/strong\u003e Dual-element\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResponse Time:\u003c\/strong\u003e 10 sec at 500% overload\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Indicator:\u003c\/strong\u003e Non-indicating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecial Features:\u003c\/strong\u003e Finger-safe construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 5.5 in (L) x 1.6 in (W) x 1.06 in (H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.5 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging Type:\u003c\/strong\u003e Standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Compliance and Certifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ECSR300 Eaton Edison fuse is CE marked, meaning it meets recognized safety and performance standards for electrical protection devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial power distribution systems\u003c\/li\u003e\n\u003cli\u003eLarge motor control centers (MCCs)\u003c\/li\u003e\n\u003cli\u003eFeeder circuit protection\u003c\/li\u003e\n\u003cli\u003eTransformer protection applications\u003c\/li\u003e\n\u003cli\u003eHeavy HVAC and motor loads\u003c\/li\u003e\n\u003cli\u003eCoordinated protection systems using RK5 fuse blocks\u003c\/li\u003e\n\u003cli\u003eCommercial facilities with higher load demand\u003c\/li\u003e\n\u003cli\u003eElectrical systems where uptime matters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\n\u003cdiv\u003e\n\u003cblockquote\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eUse of 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\u003eCIRCUIT BREAKER SUPERSTORE®\u003c\/strong\u003e is an independent reseller and is \u003cstrong\u003enot\u003c\/strong\u003e an 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\u003eEaton®, Cutler-Hammer®, Westinghouse®, Challenger®, Bussmann®, Crouse-Hinds®, and Cooper® are registered trademarks of Eaton Corporation plc. Products sold are surplus, used, or refurbished and are \u003cstrong\u003eNOT \u003c\/strong\u003esupplied by Eaton Corporation plc or its affiliates.\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":50459172307243,"sku":"ECSR300","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459172340011,"sku":"ECSR300  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/ecsr300","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}