{"product_id":"cooper-bussmann-gmf-1-cartridge-time-delay-fuse-1a","title":"Cooper Bussmann GMF-1 Cartridge Time Delay Fuse 1A","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe COOPER BUSSMANN GMF-1 is a glass cartridge time-delay fuse rated at 1 amp and 300 volts, designed for low-current circuit protection in control and instrumentation panels. The time-delay characteristic allows it to absorb brief inrush currents without nuisance tripping, while still opening quickly under sustained overload conditions. The glass body provides visual confirmation of a blown fuse without removing it from the holder. This fuse measures 2.25 inches in overall length with a 15.9 mm diameter and weighs approximately 0.03 pounds. It is installed by licensed electricians and HVAC technicians in fuse holder mounts on control boards, HVAC equipment, and light industrial control circuits.\u003c\/p\u003e\u003cp\u003eThe GMF-1 is suited for residential and light commercial applications where small-amperage, time-delay fusing is required. Common installation scenarios include low-voltage control circuits, transformer secondary protection, and instrumentation panels requiring a non-rejecting, cartridge-style fuse. The non-rejecting design allows it to seat in standard open-style fuse holders without polarity or orientation restrictions.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1 amp time-delay rating handles short-duration inrush without nuisance blowing\u003c\/li\u003e\n\u003cli\u003e300-volt AC rating suitable for control and instrumentation circuit applications\u003c\/li\u003e\n\u003cli\u003eGlass fuse body allows visual inspection for blown-fuse confirmation without test equipment\u003c\/li\u003e\n\u003cli\u003eNon-rejecting cartridge design fits standard fuse holder mounts\u003c\/li\u003e\n\u003cli\u003e10 kA interrupting capacity at AC provides solid short-circuit protection for its size class\u003c\/li\u003e\n\u003cli\u003eDual-listed under UL 248-14 and CSA C22.2 No. 248.14 for broad code compliance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a time-delay cartridge replacement fuse for standard fuse holders accepting a 15.9 mm diameter, 2.25-inch cartridge fuse. Non-rejecting body fits open-style and standard clip-type fuse holders used in HVAC control panels and light industrial equipment.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified electrician or HVAC technician in accordance with NEC requirements for overcurrent protection. Always de-energize and verify the circuit is voltage-free before replacing any fuse. Confirm replacement fuse amperage, voltage rating, and physical dimensions match the original before seating in the holder. Do not substitute a higher-amperage fuse to bypass tripping — size the fuse to the circuit protection requirement.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 1 amp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: 300 volts AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Capacity\u003c\/strong\u003e: 10 kA at AC\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\u003eOverall Length\u003c\/strong\u003e: 2.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Diameter\u003c\/strong\u003e: 15.9 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Glass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Fuse Holder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRejection Setting\u003c\/strong\u003e: Non-Rejecting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: UL Listed 248-14 Guide JDYX File E19180; CSA C22.2 No. 248.14 Class 1422-01 File 53787 Certified\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: GMF-1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EATON","offers":[{"title":"Default Title","offer_id":51715628958002,"sku":"GMF-1","price":160.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4fd76c015e437458c0a46574279d3027.jpg?v=1788516557","url":"https:\/\/voomisupply.com\/products\/cooper-bussmann-gmf-1-cartridge-time-delay-fuse-1a","provider":"Voomi Supply","version":"1.0","type":"link"}