{"product_id":"a4by650","title":"A4BY650 - 650Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eA4BY650 - 650Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eProtect your electrical systems with confidence using the Mersen A4BY650 Amp-Trap® Class L Time-Delay Fuse. Rated at 650 amps, this fuse is perfect for service entrance equipment, feeder circuits, and circuit breakers. Its smart time-delay design lets harmless surges—like motor startups or short voltage spikes—pass without tripping, but acts instantly when a real overcurrent occurs. That means your equipment stays safe, downtime is minimized, and your operations keep running smoothly.\u003c\/p\u003e\n\u003cp\u003eInstallation is quick and easy thanks to silver-plated copper blade terminals and a bolt-mounted design. Plus, clear markings make identification and replacement straightforward, saving time and reducing maintenance headaches.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTime-delay design prevents unnecessary trips from harmless surges\u003c\/li\u003e\n\u003cli\u003e650A rating for medium to high-current circuits\u003c\/li\u003e\n\u003cli\u003eRated for 600VAC \/ 300VDC applications\u003c\/li\u003e\n\u003cli\u003e200kA AC interrupting capacity for fast fault protection\u003c\/li\u003e\n\u003cli\u003eContinuous-duty operation at full amp rating\u003c\/li\u003e\n\u003cli\u003eEasy-to-read markings simplify maintenance\u003c\/li\u003e\n\u003cli\u003eBolt-mounted installation ensures secure and stable fit\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 A4BY650\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e A4BY – Class L – Time-Delay\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class:\u003c\/strong\u003e Class L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmpere Rating:\u003c\/strong\u003e 650A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600VAC \/ 300VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e 50\/60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed\/Characteristic:\u003c\/strong\u003e Time-Delay\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type:\u003c\/strong\u003e Blade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Material:\u003c\/strong\u003e Silver-Plated Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Max Interrupting Rating:\u003c\/strong\u003e 200kA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e GMG (Glass Melamine)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Diameter:\u003c\/strong\u003e 50.8 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Length:\u003c\/strong\u003e 219.2 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Weight:\u003c\/strong\u003e 1.6511 kg\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\u003eRoHS Compliant\u003c\/li\u003e\n\u003cli\u003eUL\/CSA approved for low-voltage applications\u003c\/li\u003e\n\u003cli\u003eMeets industry standards for industrial and commercial circuit protection\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\u003eThe A4BY650 is perfect for applications where reliable surge tolerance and fast fault response are crucial:\u003c\/li\u003e\n\u003cli\u003eService entrance panels\u003c\/li\u003e\n\u003cli\u003eFeeder circuits and distribution systems\u003c\/li\u003e\n\u003cli\u003eIndustrial machinery protection\u003c\/li\u003e\n\u003cli\u003eCommercial power systems\u003c\/li\u003e\n\u003cli\u003eCritical circuit breakers in essential infrastructure\u003c\/li\u003e\n\u003cli\u003eWith its time-delay performance, secure blade terminals, and strong interrupting capacity, the Mersen A4BY650 keeps your electrical systems safe, efficient, and running without a hitch—ideal for both commercial and industrial setups.\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 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\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\u003eMersen® is a registered trademark of Mersen S.A. Products sold are surplus, used, or refurbished and are \u003cstrong\u003eNOT \u003c\/strong\u003esupplied by Mersen S.A. 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":50459152843051,"sku":"A4BY650","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459152875819,"sku":"A4BY650  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/a4by650","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}