{"product_id":"cooper-bussmann-fna-4-cartridge-time-delay-fuse-4a-250v","title":"Cooper Bussmann FNA-4 Cartridge Time Delay Fuse 4A 250V","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe COOPER BUSSMANN FNA-4 is a cartridge-style, time delay fuse rated at 4 amps and 250 volts. It features a dual-element design that tolerates brief inrush currents while still protecting circuits from sustained overloads and short circuits. The pin indicator provides a clear visual signal when the fuse has opened, allowing technicians to identify a blown fuse without removing it from the holder. At 0.01 pounds and 1.5 inches in overall length, the FNA-4 fits standard fuse holders used across HVAC control circuits, small appliance panels, and light industrial equipment.\u003c\/p\u003e\n\u003cp\u003eThe FNA-4 is suited for use in low-current control circuits where time delay protection is required. Common applications include HVAC equipment control boards, instrumentation panels, and light commercial electrical enclosures. The fuse mounts in a standard fuse holder and is appropriate for residential and light commercial installations where a compact, indicating, time delay fuse is specified. Its green color-coding aids quick identification during service calls.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTime delay dual-element design tolerates motor inrush and capacitive loads without nuisance opening\u003c\/li\u003e\n  \u003cli\u003ePin indicator provides visual blown-fuse confirmation without fuse removal\u003c\/li\u003e\n  \u003cli\u003e250-volt rating with 200-amp interrupting capacity at 250 volts and 10 kA interrupting rating at 125 volts\u003c\/li\u003e\n  \u003cli\u003eGreen color-coded body for fast visual identification in multi-fuse panels\u003c\/li\u003e\n  \u003cli\u003eCE Certified, CSA Class 1422-01 Certified, and UL Listed for recognized installations\u003c\/li\u003e\n  \u003cli\u003eCompact 1.5-inch overall length fits standard cartridge fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement for cartridge time delay fuses in standard fuse holders requiring a 4-amp, 250-volt, 1.5-inch cartridge fuse with pin indicator functionality.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed electrician or qualified HVAC technician. Always de-energize the circuit and verify voltage absence with a meter before replacing the fuse. The fuse mounts in a compatible cartridge fuse holder rated for 250 volts. Verify the replacement fuse amperage and voltage rating match the original equipment specification before energizing the circuit.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 4 amps\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 250 volts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuse Timing\u003c\/strong\u003e: Time Delay\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuse Body Type\u003c\/strong\u003e: Cartridge\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Elements\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterrupting Rating\u003c\/strong\u003e: 200 amps at 250 volts; 10 kA at 125 volts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Fuse Holder\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndicator Type\u003c\/strong\u003e: Pin Indicator\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Green\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertifications\u003c\/strong\u003e: CE Certified; CSA Class 1422-01 File 53787 Certified; UL Listed Guide JDYX File E19180\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: FNA-4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EATON","offers":[{"title":"Default Title","offer_id":51693167378738,"sku":"FNA-4","price":46.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f24b98e77cd30a0ded3c1de3f3035858.jpg?v=1788308288","url":"https:\/\/voomisupply.com\/products\/cooper-bussmann-fna-4-cartridge-time-delay-fuse-4a-250v","provider":"Voomi Supply","version":"1.0","type":"link"}