{"product_id":"cooper-bussmann-frn-r-30-cartridge-time-delay-fuse-30a-rk5","title":"Cooper Bussmann FRN-R-30 Cartridge Time Delay Fuse 30A RK5","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe COOPER BUSSMANN FRN-R-30 is a cartridge-style, time delay fuse rated at 30 amps in the RK5 fuse class. It is designed for general-purpose overcurrent protection in industrial, commercial, and HVAC electrical systems where inrush currents from motor loads require a time delay before the fuse opens. The cartridge body measures 2 inches in overall length and 0.563 inches in diameter, fitting standard RK5 fuse holders. A dual-element design provides reliable protection by separating the time delay and overload functions into two distinct elements. Licensed electricians and HVAC technicians are the primary installers.\u003c\/p\u003e\n\u003cp\u003eThe FRN-R-30 is well-suited for residential and light commercial HVAC disconnect panels, motor control circuits, and general electrical distribution equipment where RK5-class fuse protection is specified. It is rated for a 20 kA interrupting capacity at DC 200 volts RMS, making it appropriate for circuits with significant available fault current. Its non-indicating design means it does not provide a visual trip indication, which should be factored into maintenance and troubleshooting workflows.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e30-amp time delay rating handles motor inrush without nuisance opening\u003c\/li\u003e\n  \u003cli\u003eDual-element construction separates overload and short-circuit protection\u003c\/li\u003e\n  \u003cli\u003eRK5 fuse class fits standard RK5 fuse holders and disconnect blocks\u003c\/li\u003e\n  \u003cli\u003e20 kA interrupting capacity at DC 200 volts RMS\u003c\/li\u003e\n  \u003cli\u003eNon-indicating fuse body for straightforward cartridge replacement\u003c\/li\u003e\n  \u003cli\u003eCE Certified, CSA Certified, and UL Listed to applicable fuse standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in RK5-class fuse holders and fused disconnect switches where a 30-amp, time delay cartridge fuse is required per circuit design specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and any applicable local codes. De-energize and lock out the circuit before removing or installing the fuse. Verify the fuse holder is rated for RK5-class cartridge fuses and confirm the circuit voltage and amperage do not exceed the fuse rating before energizing. Never replace a blown fuse without first identifying and correcting the cause of the overcurrent condition.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 30 amps\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuse Class\u003c\/strong\u003e: RK5\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 Capacity\u003c\/strong\u003e: 20 kA at DC 200 volts RMS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 inches (50.80 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Diameter\u003c\/strong\u003e: 0.563 inches (14.30 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Fuse Holder\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndicating\u003c\/strong\u003e: Non-Indicating\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.06 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertifications\u003c\/strong\u003e: CE Certified; CSA C22.2 No. 248.12 Class 1422-02 File 53787 Certified; UL Listed 248-12 Class RK5 Guide JDDZ File E4273\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 39121605\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: FRN-R-30\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EATON","offers":[{"title":"Default Title","offer_id":51720685093170,"sku":"FRN-R-30","price":208.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/534722a407403c3264b90a35b5b679ed.jpg?v=1788567651","url":"https:\/\/voomisupply.com\/products\/cooper-bussmann-frn-r-30-cartridge-time-delay-fuse-30a-rk5","provider":"Voomi Supply","version":"1.0","type":"link"}