{"product_id":"bussmann-frn-r-10-fuse","title":"Bussmann FRN-R-10 Fuse","description":"\u003cp\u003eThe \u003cstrong\u003eBussmann FRN-R-10\u003c\/strong\u003e is a heavy-duty, 10 Amp \u003cstrong\u003eClass RK5 dual-element time-delay fuse\u003c\/strong\u003e engineered for superior circuit protection in inductive loads. Rated for 250V AC and 125V DC, this Fusetron series fuse features a minimum 10-second time-delay at 500% of the rated current, effectively preventing \u003cstrong\u003enuisance tripping\u003c\/strong\u003e caused by high motor inrush currents or temporary surges. For HVACR contractors, this component is essential for protecting small motor circuits, control transformers, and solenoid valves where standard fast-acting fuses fail. The \u003cstrong\u003erejection-style design\u003c\/strong\u003e ensures compliance with safety standards by preventing the installation of lower-rated fuses into RK5-specific \u003cstrong\u003efuse blocks\u003c\/strong\u003e. With a 200kA symmetrical interrupting rating, the FRN-R-10 provides high-level current limitation, reducing the risk of thermal and magnetic damage to downstream components during a short-circuit event.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Technical Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-element construction\u003c\/strong\u003e provides accurate overcurrent protection while allowing for high-starting torque.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e200,000 Amp Interrupting Rating (AIR)\u003c\/strong\u003e ensures high-level safety in industrial and commercial electrical panels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass RK5 rejection feature\u003c\/strong\u003e prevents accidental replacement with inferior Class H or K fuses.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent-limiting performance\u003c\/strong\u003e minimizes peak let-through current to protect sensitive motor starters and contractors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile 250V rating\u003c\/strong\u003e makes it a standard inventory item for residential and light commercial HVAC units.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCommon Technical Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use an FRN-R-10 to replace a standard non-time-delay fuse?\u003c\/strong\u003e\u003cbr\u003e\nYes, in most motor applications, switching to a \u003cstrong\u003etime-delay RK5 fuse\u003c\/strong\u003e is preferable to prevent unnecessary downtime from temporary surges, provided the voltage and amperage ratings match.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between FRN-R and FRS-R fuses?\u003c\/strong\u003e\u003cbr\u003e\nThe FRN-R series is rated for \u003cstrong\u003e250V AC\u003c\/strong\u003e, whereas the FRS-R series is rated for 600V AC. Always verify the system voltage before selecting a replacement.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWill this fuse fit into a standard 10 amp fuse holder?\u003c\/strong\u003e\u003cbr\u003e\nThe FRN-R-10 features the \u003cstrong\u003eClass RK5 rejection slot\u003c\/strong\u003e. It will fit into any standard R-Series fuse block or disconnect, but it will block the installation of non-rejection style fuses in those same holders for safety.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"Bussmann","offers":[{"title":"Default Title","offer_id":35643387980,"sku":"FRN-R-10","price":9.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/products\/Pic_bd29a6c2-3970-4e08-9745-6f0ec6ccafd5.png?v=1679685491","url":"https:\/\/www.gsistore.com\/en-ca\/products\/bussmann-frn-r-10-fuse","provider":"GSIstore","version":"1.0","type":"link"}