{"product_id":"cooper-bussmann-nos-20-cartridge-fast-acting-fuse-k5-20a-600v","title":"Cooper Bussmann NOS-20 Cartridge Fast-acting Fuse K5 20A 600V","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe COOPER BUSSMANN NOS-20 is a Class K5 cartridge fast-acting fuse rated at 20 amps and 600 volts with a 50 kA interrupting rating at AC and DC. The cartridge body measures 5 inches in overall length and 20.6 millimeters in diameter, fitting standard fuse holders designed for this form factor. It is a general-purpose fuse used in branch circuit and feeder protection applications across industrial, commercial, and mechanical trade environments. Electricians and maintenance technicians install this type of fuse where fast-acting overcurrent protection is required and where a Class K5 form factor is specified by the equipment or panel design.\u003c\/p\u003e\u003cp\u003eThe NOS-20 is suited for use in fuse holders and fuse blocks that accept Class K5 cartridge fuses in commercial and industrial electrical systems. Typical applications include motor branch circuits, distribution panels, and equipment protection where a 600-volt, 20-amp fast-acting fuse is called out. The 5-inch cartridge form factor is a common industry size found in both legacy and current equipment. This fuse is appropriate for installations governed by NEC requirements for overcurrent protection in general-purpose circuits.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e20-amp rating with 600-volt AC and DC capability\u003c\/li\u003e\n\u003cli\u003e50 kA interrupting rating at AC and DC for high fault-current environments\u003c\/li\u003e\n\u003cli\u003eFast-acting fuse timing for immediate response to overcurrent events\u003c\/li\u003e\n\u003cli\u003eClass K5 cartridge body, 5 inches in length and 20.6 millimeters in diameter\u003c\/li\u003e\n\u003cli\u003eMounts in standard fuse holders designed for this cartridge form factor\u003c\/li\u003e\n\u003cli\u003eCE Certified, CSA Certified, and UL Listed to UL 248-9\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a Class K5 cartridge fuse replacement for fuse holders and fuse blocks rated to accept a 5-inch, 20-amp, 600-volt fast-acting cartridge fuse.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation must be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the circuit before removing or installing any fuse. Confirm the fuse holder or block is rated for Class K5 cartridge fuses at the specified voltage and amperage before installation. Never install a fuse with a higher amperage rating than the circuit is designed and protected for.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class\u003c\/strong\u003e: K5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Type\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Timing\u003c\/strong\u003e: Fast-Acting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Body Type\u003c\/strong\u003e: Cartridge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 20 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 600 volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Rating\u003c\/strong\u003e: 50 kA at AC and DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5 inches (127 millimeters)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Diameter\u003c\/strong\u003e: 20.6 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Fuse Holder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.15 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications\u003c\/strong\u003e: CE Certified; CSA Class 1421-01 File 53787 Certified; UL 248-9; UL Guide JDDZ File E4273; UL Listed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 39121605\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: COOPER BUSSMANN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: NOS-20\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EATON","offers":[{"title":"Default Title","offer_id":51692273074482,"sku":"NOS-20","price":40.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d000b369472dc8d2bd562806e9a64496.jpg?v=1788295527","url":"https:\/\/voomisupply.com\/products\/cooper-bussmann-nos-20-cartridge-fast-acting-fuse-k5-20a-600v","provider":"Voomi Supply","version":"1.0","type":"link"}