{"product_id":"ecnr300","title":"ECNR300 - 300Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eECNR300 - 300Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen you're working with high-capacity electrical systems, protection needs to be solid, consistent, and built for real-world conditions. The Eaton Edison ECNR300 Fuse is a 300 Amp Class RK5 dual-element time-delay fuse designed specifically for demanding commercial and industrial applications where electrical loads can fluctuate and startup surges are part of normal operation.\u003c\/p\u003e\n\u003cp\u003eInstead of reacting too quickly and disrupting equipment during startup, this fuse is engineered to handle temporary inrush currents from motors, transformers, compressors, and other inductive loads. That means fewer nuisance interruptions and more stable system performance. When a genuine overload or fault occurs, however, the ECNR300 responds quickly to protect downstream equipment and help prevent costly damage.\u003c\/p\u003e\n\u003cp\u003eWith a 200 kAIC interrupting rating, this fuse is built for environments where high fault current levels are expected. It provides dependable protection in systems where reliability isn’t optional—it’s required to keep operations running safely and efficiently. Whether it’s used in power distribution, motor control centers, or heavy-duty industrial equipment, the ECNR300 is designed to perform under pressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e300 Amp rating for high-capacity industrial and commercial systems\u003c\/li\u003e\n\u003cli\u003eClass RK5 dual-element design for dependable time-delay performance\u003c\/li\u003e\n\u003cli\u003eHandles motor and transformer inrush currents without nuisance blowing\u003c\/li\u003e\n\u003cli\u003eHigh 200 kAIC interrupt rating for strong fault protection\u003c\/li\u003e\n\u003cli\u003eHelps reduce downtime and unnecessary fuse replacements\u003c\/li\u003e\n\u003cli\u003eRated for 250 VAC and 125 VDC applications\u003c\/li\u003e\n\u003cli\u003eNon-indicating fuse design for straightforward replacement\u003c\/li\u003e\n\u003cli\u003eSuitable for heavy-duty electrical distribution and equipment protection\u003c\/li\u003e\n\u003cli\u003eBuilt for consistent performance in demanding environments\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\u003eManufacturer:\u003c\/strong\u003e Eaton\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Edison ECNR\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog Number:\u003c\/strong\u003e ECNR300\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 782634507512\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class:\u003c\/strong\u003e RK5\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 300 A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 250 VAC \/ 125 VDC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupt Rating:\u003c\/strong\u003e 200 kAIC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResponse Time:\u003c\/strong\u003e 10 seconds at 500% overload\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Elements:\u003c\/strong\u003e Dual-element\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Indicator:\u003c\/strong\u003e Non-indicating\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecial Features:\u003c\/strong\u003e Non current limiting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e3 in L × 0.625 in W × 0.625 in H\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.113 lb\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging Type:\u003c\/strong\u003e Standard\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 Eaton ECNR300 fuse is CE Marked, indicating compliance with applicable safety and performance standards. It is manufactured under Eaton’s quality specifications for industrial electrical protection components and is intended for use in properly rated electrical systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe ECNR300 is commonly used in applications where electrical demand is high and equipment must operate reliably under varying load conditions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMotor control centers (MCCs)\u003c\/li\u003e\n\u003cli\u003eIndustrial machinery and production equipment\u003c\/li\u003e\n\u003cli\u003eHVAC and large mechanical systems\u003c\/li\u003e\n\u003cli\u003ePower distribution panels and switchgear\u003c\/li\u003e\n\u003cli\u003eTransformers and inductive load circuits\u003c\/li\u003e\n\u003cli\u003ePumping stations and compressor systems\u003c\/li\u003e\n\u003cli\u003eCommercial and industrial electrical infrastructure\u003c\/li\u003e\n\u003cli\u003eOEM heavy equipment applications\u003c\/li\u003e\n\u003cli\u003eFacility maintenance and replacement projects requiring a 300A RK5 fuse\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor systems that demand both strong fault protection and tolerance for normal startup surges, the Eaton Edison ECNR300 delivers dependable performance that helps keep critical operations running safely and efficiently.\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\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":50459169259819,"sku":"ECNR300","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459169292587,"sku":"ECNR300  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/ecnr300","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}