{"product_id":"ktn-r-400","title":"KTN-R-400 - 400Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eKTN-R-400 - 400Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen you're selecting a 400A fuse, don't rely on appearance or amperage alone. The Eaton Bussmann KTN-R-400 is specifically rated for 400A at 250 Vac\/Vdc, is Class RK1, and has a blade-end x blade-end connection. Its interrupt ratings are 200 kAIC at 250 Vac and 100 kAIC at 250 Vdc, making it essential for maintenance teams and electricians.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e400A rating — clearly identifies the amperage of the KTN-R-400 for specification matching.\u003c\/li\u003e\n\u003cli\u003e250 Vac and 250 Vdc ratings let buyers verify both the AC and DC voltage information supplied for this model.\u003c\/li\u003e\n\u003cli\u003eClass RK1 classification gives maintenance personnel an important specification to check against equipment documentation.\u003c\/li\u003e\n\u003cli\u003eThe blade-end-to-blade-end connection provides a straightforward physical connection detail for replacement comparison.\u003c\/li\u003e\n\u003cli\u003eSingle-element construction adds another manufacturer-specified characteristic to confirm when identifying the correct fuse.\u003c\/li\u003e\n\u003cli\u003eThe KTN-R-400 specifies melamine glass tube material.\u003c\/li\u003e\n\u003cli\u003e70\/30 brass end cap is listed as a special feature.\u003c\/li\u003e\n\u003cli\u003eNon-indicating configuration—the manufacturer lists the model as non-indicating.\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\u003eProduct Name:\u003c\/strong\u003e Eaton Bussmann series KTN-R fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog Number:\u003c\/strong\u003e KTN-R-400\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 051712407250\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\u003eAmperage Rating:\u003c\/strong\u003e 400 A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 250 Vac, 250 Vdc\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupt Rating:\u003c\/strong\u003e 200 kAIC at 250 Vac; 100 kAIC at 250 Vdc\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass:\u003c\/strong\u003e Class RK1\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Melamine glass tube\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Elements:\u003c\/strong\u003e 1\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e Blade end x blade end\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 Feature:\u003c\/strong\u003e 70\/30 brass end cap\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Length\/Depth:\u003c\/strong\u003e 8.63 in\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Height:\u003c\/strong\u003e 2.06 in\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Width:\u003c\/strong\u003e 2.06 in\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Weight:\u003c\/strong\u003e 1.94 lb\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 KTN-R-400 features a melamine glass tube and a 70\/30 brass end cap. The supplied manufacturer data lists compliance as: Not Applicable. The provided specifications include no additional certifications, so we assume and add none here.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe Eaton Bussmann KTN-R-400 fuse is best suited for equipment whose documentation calls for a 400A Class RK1 fuse rated for 250 Vac or 250 Vdc and whose required connection and physical dimensions match this model. Its manufacturer-listed interrupt ratings are 200 kAIC at 250 Vac and 100 kAIC at 250 Vdc, making those values important parts of the specification check rather than details to overlook.\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\u003eEaton®, Cutler-Hammer®, Westinghouse®, Challenger®, Bussmann®, Edison®, Edison Fuse®, GTE Sylvania®, 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":"EATON","offers":[{"title":"New In Box","offer_id":50459243184427,"sku":"KTN-R-400","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459243217195,"sku":"KTN-R-400  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/ktn-r-400","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}