{"product_id":"cooper-bussmann-mdl-4-r-cartridge-time-delay-fuse-4a","title":"Cooper Bussmann MDL-4-R Cartridge Time Delay Fuse 4A","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe COOPER BUSSMANN MDL-4-R is a glass-body cartridge time delay fuse rated at 4 amps for use in low-voltage control circuits, instrumentation panels, and electronic equipment found in HVAC, electrical, and industrial trade applications. The time delay characteristic allows temporary inrush currents to pass without nuisance tripping while still protecting downstream components from sustained overloads and short circuits. At 1.25 inches overall length and 0.25 inches diameter, this is a standard 1\/4 x 1-1\/4 inch mini cartridge form factor. Interrupting ratings are 10,000 amps at 125 volts and 200 amps at 250 volts.\u003c\/p\u003e\n\u003cp\u003eThis fuse is suited for residential and light commercial control boards, transformer secondary circuits, and instrumentation or signal circuits where a time delay fuse is specified. Electricians and HVAC technicians commonly install this type when replacing blown fuses in control panels, zone boards, low-voltage transformer circuits, and small appliance or equipment protection applications. The glass body allows visual inspection of the fuse element without removal from the holder, which speeds up field diagnostics.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTime delay rating absorbs inrush current without nuisance tripping during motor or transformer startup\u003c\/li\u003e\n  \u003cli\u003eGlass body enables quick visual inspection of the fuse element in the field\u003c\/li\u003e\n  \u003cli\u003e4 amp rating in a compact 0.25 inch diameter by 1.25 inch length mini cartridge form factor\u003c\/li\u003e\n  \u003cli\u003eHigh interrupting rating: 10,000 amps at 125 volts for reliable fault protection\u003c\/li\u003e\n  \u003cli\u003eRoHS compliant and UL Listed (Guide JDYX, File E19180) for use in code-required installations\u003c\/li\u003e\n  \u003cli\u003eCSA and CE certified; meets MIL-STD-202 shock and vibration methods\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement for standard 1\/4 inch by 1-1\/4 inch mini glass cartridge time delay fuse holders used in control circuits, instrumentation panels, and low-voltage electrical equipment.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a licensed electrician or qualified HVAC technician. De-energize and lock out the circuit before removing or installing any fuse. Verify the replacement fuse amperage, voltage rating, and time delay classification match the original specification before insertion. Do not install a fast-acting fuse in place of a time delay fuse or exceed the circuit's rated amperage.\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\u003eFuse Type\u003c\/strong\u003e: Mini Cartridge\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuse Timing\u003c\/strong\u003e: Time Delay\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.25 inches (31.75 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Diameter\u003c\/strong\u003e: 0.25 inches (6.35 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Glass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterrupting Rating\u003c\/strong\u003e: 10,000 amps at 125 volts; 200 amps at 250 volts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: UL 248-14 Listed (Guide JDYX File E19180), CSA Class 1422-01, CE Certified, RoHS 2002\/95\/EC, MIL-STD-202 Method 204, MIL-STD-202 Method 207 HI Shock\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: MDL-4-R\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EATON","offers":[{"title":"Default Title","offer_id":51691503550770,"sku":"MDL-4-R","price":63.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/66247baf03ed38cb22386e36ff84b772.jpg?v=1788286082","url":"https:\/\/voomisupply.com\/products\/cooper-bussmann-mdl-4-r-cartridge-time-delay-fuse-4a","provider":"Voomi Supply","version":"1.0","type":"link"}