{"product_id":"mrbf-marine-fuse-holder-single-dual-double-tinned-copper","title":"MRBF Marine Fuse Holder – Single \u0026 Dual (Double)","description":"\u003cdiv class=\"sapphire-product-description\"\u003e\n\n  \u003ch2 class=\"sapphire-title\"\u003eMRBF Marine Battery Fuse Holder – Single \u0026amp; Double\u003c\/h2\u003e\n  \u003chr class=\"sapphire-hr\"\u003e\n\n  \u003cp class=\"sapphire-p\"\u003e\n    Protect your battery and DC electrical systems with our premium\n    \u003cstrong\u003etinned copper MRBF fuse holders\u003c\/strong\u003e. Designed for marine,\n    RV, LiFePO₄ battery, and off-grid applications, these compact holders\n    provide a convenient way to install high-current fuse protection\n    directly at the battery terminal or busbar.\n  \u003c\/p\u003e\n\n  \u003cp class=\"sapphire-p\"\u003e\n    Available in \u003cstrong\u003eSingle and Double (Dual)\u003c\/strong\u003e configurations,\n    each holder features a versatile mounting hole compatible with\n    \u003cstrong\u003eM8 (5\/16\") and M10 (3\/8\") studs\u003c\/strong\u003e,\n    \u003cstrong\u003eM8 (5\/16\") fuse and cable connection studs\u003c\/strong\u003e,\n    stainless steel fastening hardware, and a flexible\n    \u003cstrong\u003ered silicone insulating cover\u003c\/strong\u003e to help protect\n    exposed electrical connections.\n  \u003c\/p\u003e\n\n  \u003ch3 class=\"sapphire-title\"\u003eWhy You'll Love It\u003c\/h3\u003e\n  \u003chr class=\"sapphire-hr\"\u003e\n\n  \u003cul class=\"sapphire-checklist\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMarine-Grade Tinned Copper:\u003c\/strong\u003e Excellent electrical conductivity and corrosion resistance for demanding DC installations.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSingle or Double Configuration:\u003c\/strong\u003e Choose one fuse position or protect two independent circuits from a shared battery or busbar connection.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHigh Interrupt Rating:\u003c\/strong\u003e Compatible MRBF fuses offer up to 10,000A interrupt capacity at 14V DC.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM8 Cable Connections:\u003c\/strong\u003e Standard 5\/16\" fuse terminal studs provide secure connections for compatible battery cable lugs.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProtective Silicone Cover:\u003c\/strong\u003e Includes a flexible red insulating cover to help protect exposed connections from accidental contact, dust, and splashing water.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Serviceable:\u003c\/strong\u003e Install overcurrent protection close to the power source and easily replace MRBF fuse cartridges when required.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cdiv class=\"sapphire-callout sapphire-callout-blue\"\u003e\n    \u003ch4 class=\"sapphire-title\"\u003eComplete Your Installation\u003c\/h4\u003e\n    \u003chr class=\"sapphire-hr\"\u003e\n\n    \u003cp class=\"sapphire-p\"\u003e\n      \u003cstrong\u003eFuse cartridges are sold separately.\u003c\/strong\u003e\n      Pair your holder with our waterproof, ignition-protected MRBF battery fuses,\n      conveniently packaged in 2-packs. Alternatively, choose a complete MRBF kit\n      with your preferred holder configuration and fuse amperage.\n    \u003c\/p\u003e\n\n    \u003cdiv class=\"sapphire-cta-group\"\u003e\n      \u003ca class=\"sapphire-cta\" href=\"https:\/\/sapphirebattery.ca\/products\/mrbf-battery-fuse-2pk\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\n        Shop MRBF Fuses (2-Pack)\n      \u003c\/a\u003e\n      \u003ca class=\"sapphire-cta\" href=\"https:\/\/sapphirebattery.ca\/products\/mrbf-battery-fuse-kit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\n        Shop Complete MRBF Kits\n      \u003c\/a\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3 class=\"sapphire-title\"\u003eSingle vs. Double MRBF Fuse Holders\u003c\/h3\u003e\n  \u003chr class=\"sapphire-hr\"\u003e\n\n  \u003cp class=\"sapphire-p\"\u003e\n    Both versions feature corrosion-resistant tinned copper construction,\n    stainless steel hardware, and a protective silicone cover.\n    Select the configuration that best suits your electrical system.\n  \u003c\/p\u003e\n\n  \u003ctable class=\"sapphire-spec-table\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"col\" style=\"text-align:left;\"\u003eFeature\u003c\/th\u003e\n        \u003cth scope=\"col\" style=\"text-align:center;\"\u003eSingle Holder\u003c\/th\u003e\n        \u003cth scope=\"col\" style=\"text-align:center;\"\u003eDouble Holder\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eSKU\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003eFH-MRBF1\u003c\/td\u003e\n        \u003ctd style=\"text-align:center;\"\u003eFH-MRBF2\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eFuse Positions\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003e1\u003c\/td\u003e\n        \u003ctd style=\"text-align:center;\"\u003e2\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eProtected Circuits\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003e1\u003c\/td\u003e\n        \u003ctd style=\"text-align:center;\"\u003e2\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eMounting Compatibility\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003eM8 \/ M10\u003c\/td\u003e\n        \u003ctd style=\"text-align:center;\"\u003eM8 \/ M10\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eFuse\/Cable Studs\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003eM8 (5\/16\")\u003c\/td\u003e\n        \u003ctd style=\"text-align:center;\"\u003eM8 (5\/16\")\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eMaximum Holder Rating\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003e300A\u003c\/td\u003e\n        \u003ctd style=\"text-align:center;\"\u003e300A Total\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eProtective Cover\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003eIncluded\u003c\/td\u003e\n        \u003ctd style=\"text-align:center;\"\u003eIncluded\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3 class=\"sapphire-title\"\u003eBuilt for Demanding DC Environments\u003c\/h3\u003e\n  \u003chr class=\"sapphire-hr\"\u003e\n\n  \u003cp class=\"sapphire-p\"\u003e\n    MRBF (Marine Rated Battery Fuse) holders offer a compact alternative\n    to conventional inline fuse holders. By mounting directly to a\n    compatible battery terminal or busbar, they help reduce additional\n    wiring and allow overcurrent protection to be located close to\n    the power source.\n  \u003c\/p\u003e\n\n  \u003cp class=\"sapphire-p\"\u003e\n    The holder's \u003cstrong\u003etinned copper conductive components\u003c\/strong\u003e\n    provide an efficient electrical path while offering enhanced\n    corrosion resistance in marine and outdoor environments.\n    Stainless steel fasteners provide secure mechanical connections\n    without serving as the primary current-carrying path.\n  \u003c\/p\u003e\n\n  \u003cp class=\"sapphire-p\"\u003e\n    Each holder includes a flexible \u003cstrong\u003ered silicone insulating cover\u003c\/strong\u003e\n    that helps shield the fuse and terminal connections against accidental\n    contact, dust, and splashing water. The cover can be removed for\n    inspection or replacement of the fuse cartridges.\n  \u003c\/p\u003e\n\n  \u003ch3 class=\"sapphire-title\"\u003eApplications\u003c\/h3\u003e\n  \u003chr class=\"sapphire-hr\"\u003e\n\n  \u003cul class=\"sapphire-checklist\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMarine Electrical Systems:\u003c\/strong\u003e Battery banks, DC distribution, and auxiliary onboard equipment.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLiFePO₄ Battery Installations:\u003c\/strong\u003e Compact overcurrent protection for compatible lithium battery systems.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRVs \u0026amp; Camper Vans:\u003c\/strong\u003e Space-saving protection for house batteries and DC power systems.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOff-Grid Solar Systems:\u003c\/strong\u003e Battery and DC distribution protection for cabins and remote installations.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBattery Busbars:\u003c\/strong\u003e Direct mounting to compatible busbar studs for individually protected circuits.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAuxiliary Battery Systems:\u003c\/strong\u003e Protection for vehicle accessories and additional DC loads.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3 class=\"sapphire-title\"\u003eTechnical Specifications\u003c\/h3\u003e\n  \u003chr class=\"sapphire-hr\"\u003e\n\n  \u003ctable class=\"sapphire-spec-table\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eProduct Type\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003eMRBF Marine Battery Fuse Holder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eConfigurations\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003eSingle \/ Double (Dual)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eHolder Material\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003eTinned Copper\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eMaximum Holder Current\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003e300A Total\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eMaximum Voltage\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003e58V DC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eMounting Hole\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003eM10 (3\/8\")\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eCompatible Mounting Studs\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003eM8 (5\/16\") \/ M10 (3\/8\")\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eFuse\/Cable Terminal Studs\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003eM8 (5\/16\")\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eFastening Hardware\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003eStainless Steel\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eMaximum Terminal Torque\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003e75 in-lb (8.5 N·m)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eCompatible Fuse Type\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003eMRBF Terminal Fuse\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eHolder Ignition Protection\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003eNo (with fuse: see FAQ)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eInsulating Cover\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003eFlexible Red Silicone\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eInstallation\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003eBattery Terminal \/ Busbar Stud\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"row\" style=\"text-align:left;\"\u003eFuses Included\u003c\/th\u003e\n        \u003ctd style=\"text-align:center;\"\u003eNo – Sold Separately\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3 class=\"sapphire-title\"\u003eWhat's Included\u003c\/h3\u003e\n  \u003chr class=\"sapphire-hr\"\u003e\n\n  \u003cul class=\"sapphire-checklist\"\u003e\n    \u003cli\u003e1 × MRBF Fuse Holder (Single or Double, as selected)\u003c\/li\u003e\n    \u003cli\u003e1 × Red Silicone Insulating Cover\u003c\/li\u003e\n    \u003cli\u003eStainless Steel Fuse-Retaining Hardware\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cdiv class=\"sapphire-callout sapphire-callout-yellow\"\u003e\n    \u003ch4 class=\"sapphire-title\"\u003ePrefer a Complete MRBF Fuse Kit?\u003c\/h4\u003e\n    \u003chr class=\"sapphire-hr\"\u003e\n\n    \u003cp class=\"sapphire-p\"\u003e\n      Choose a \u003cstrong\u003eSingle or Double holder\u003c\/strong\u003e and your preferred\n      fuse amperage. Every kit includes the selected holder,\n      silicone cover, stainless steel hardware, and\n      \u003cstrong\u003etwo matching MRBF fuses\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n    \u003cp class=\"sapphire-p\"\u003e\n      With the Single kit, install one fuse and keep the second as a spare.\n      With the Double kit, both fuses can be installed to protect two circuits.\n    \u003c\/p\u003e\n\n    \u003cdiv class=\"sapphire-cta-group\"\u003e\n      \u003ca class=\"sapphire-cta\" href=\"https:\/\/sapphirebattery.ca\/products\/mrbf-battery-fuse-kit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\n        Shop Complete MRBF Fuse Kits\n      \u003c\/a\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3 class=\"sapphire-title\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n  \u003chr class=\"sapphire-hr\"\u003e\n\n  \u003cdiv class=\"sapphire-faq\"\u003e\n\n    \u003cdetails class=\"sapphire-faq-item\"\u003e\n      \u003csummary\u003eWhat is the difference between a Single and Double MRBF fuse holder?\u003c\/summary\u003e\n      \u003cdiv class=\"sapphire-faq-body\"\u003e\n        \u003cp\u003e\n          The Single holder accommodates one MRBF fuse to protect one circuit.\n          The Double (Dual) holder accommodates two MRBF fuses, allowing\n          two independently fused circuits to share a common battery\n          terminal or busbar connection.\n        \u003c\/p\u003e\n        \u003cp\u003e\n          The Double holder has a maximum combined current rating of\n          \u003cstrong\u003e300A total\u003c\/strong\u003e, regardless of the individual\n          fuse amperages installed.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails class=\"sapphire-faq-item\"\u003e\n      \u003csummary\u003eCan the Double holder use two different fuse amperages?\u003c\/summary\u003e\n      \u003cdiv class=\"sapphire-faq-body\"\u003e\n        \u003cp\u003e\n          Yes. Each position can use a different MRBF fuse amperage\n          appropriate for its connected circuit.\n        \u003c\/p\u003e\n        \u003cp\u003e\n          When using different ratings, we recommend installing the\n          \u003cstrong\u003esmaller-rated fuse on the outermost (furthest)\n          fuse position\u003c\/strong\u003e.\n        \u003c\/p\u003e\n        \u003cp\u003e\n          Combined current through both circuits must not exceed\n          the holder's \u003cstrong\u003e300A total rating\u003c\/strong\u003e.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails class=\"sapphire-faq-item\"\u003e\n      \u003csummary\u003eAre these holders compatible with Blue Sea Systems MRBF fuses?\u003c\/summary\u003e\n      \u003cdiv class=\"sapphire-faq-body\"\u003e\n        \u003cp\u003e\n          Yes. These holders accept standard MRBF fuse cartridges,\n          including Blue Sea Systems MRBF fuses and our own marine-rated\n          MRBF fuses.\n        \u003c\/p\u003e\n        \u003cdiv class=\"sapphire-cta-group\"\u003e\n          \u003ca class=\"sapphire-cta\" href=\"https:\/\/sapphirebattery.ca\/products\/mrbf-battery-fuse-2pk\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\n            Shop MRBF Fuses\n          \u003c\/a\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails class=\"sapphire-faq-item\"\u003e\n      \u003csummary\u003eCan I install an MRBF fuse holder directly onto a battery terminal?\u003c\/summary\u003e\n      \u003cdiv class=\"sapphire-faq-body\"\u003e\n        \u003cp\u003e\n          Yes. The holder has an \u003cstrong\u003eM10 (3\/8\") mounting hole\u003c\/strong\u003e\n          and accommodates compatible \u003cstrong\u003eM8 (5\/16\") and M10 (3\/8\")\n          battery terminal studs\u003c\/strong\u003e, as well as busbar connections.\n        \u003c\/p\u003e\n        \u003cp\u003e\n          When mounting on an M8 stud, use a suitable flat washer\n          to support the larger mounting hole. Ensure the holder\n          makes full electrical contact with the mounting surface\n          and that all hardware is securely fastened.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails class=\"sapphire-faq-item\"\u003e\n      \u003csummary\u003eCan I install an MRBF fuse directly onto a battery terminal without a holder?\u003c\/summary\u003e\n      \u003cdiv class=\"sapphire-faq-body\"\u003e\n        \u003cp\u003e\n          \u003cstrong\u003eNo. Always use a compatible MRBF fuse holder.\u003c\/strong\u003e\n          Installing the fuse directly onto a battery terminal allows\n          the mounting bolt to create an electrical path around the\n          fuse element, effectively bypassing it.\n        \u003c\/p\u003e\n        \u003cp\u003e\n          This renders the fuse ineffective because current can flow\n          through the bolt instead of the fuse. During a short circuit,\n          the fuse may not interrupt the current, leaving the connected\n          wiring without the intended protection.\n        \u003c\/p\u003e\n        \u003cp\u003e\n          A proper MRBF holder electrically isolates the fastening\n          hardware and ensures current flows through the fuse element\n          before reaching the connected cable.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails class=\"sapphire-faq-item\"\u003e\n      \u003csummary\u003eWhat size cable lugs do I need?\u003c\/summary\u003e\n      \u003cdiv class=\"sapphire-faq-body\"\u003e\n        \u003cp\u003e\n          The fuse and cable connection studs are \u003cstrong\u003eM8 (5\/16\")\u003c\/strong\u003e.\n          Use cable lugs with matching M8 or 5\/16\" mounting holes.\n        \u003c\/p\u003e\n        \u003cp\u003e\n          The holder's main mounting hole is M10 (3\/8\"), allowing\n          installation onto compatible M8 or M10 studs.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails class=\"sapphire-faq-item\"\u003e\n      \u003csummary\u003eAre the MRBF holders waterproof?\u003c\/summary\u003e\n      \u003cdiv class=\"sapphire-faq-body\"\u003e\n        \u003cp\u003e\n          Each holder includes a flexible red silicone insulating\n          cover that helps protect exposed connections from accidental\n          contact, dust, and splashing water.\n        \u003c\/p\u003e\n        \u003cp\u003e\n          Our compatible MRBF fuse cartridges have been tested to\n          \u003cstrong\u003eIP66\u003c\/strong\u003e, providing dust-tight protection and\n          resistance to powerful water jets. The complete holder\n          assembly should not be considered a sealed waterproof enclosure.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails class=\"sapphire-faq-item\"\u003e\n      \u003csummary\u003eAre these holders ignition protected?\u003c\/summary\u003e\n      \u003cdiv class=\"sapphire-faq-body\"\u003e\n        \u003cp\u003e\n          The holder itself is not independently ignition protected.\n          When properly installed with a compatible ignition-protected\n          MRBF terminal fuse, the assembly is designed for applications\n          requiring ignition-protected fuse protection.\n        \u003c\/p\u003e\n        \u003cp\u003e\n          Our MRBF fuses feature ignition-protected construction\n          suitable for appropriate marine installations.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails class=\"sapphire-faq-item\"\u003e\n      \u003csummary\u003eCan I use these holders with LiFePO₄ batteries?\u003c\/summary\u003e\n      \u003cdiv class=\"sapphire-faq-body\"\u003e\n        \u003cp\u003e\n          Yes. MRBF holders can be used with LiFePO₄ batteries when\n          fitted with appropriately rated fuses.\n        \u003c\/p\u003e\n        \u003cp\u003e\n          The holder and compatible MRBF fuses are rated for\n          \u003cstrong\u003e58V DC maximum\u003c\/strong\u003e. The selected fuse must\n          also have sufficient interrupt capacity for the battery\n          bank's available short-circuit current.\n        \u003c\/p\u003e\n        \u003cp\u003e\n          For installations with particularly high prospective fault\n          currents, a higher-interrupt-capacity fuse such as a\n          suitably rated Class-T fuse may be required.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails class=\"sapphire-faq-item\"\u003e\n      \u003csummary\u003eWhat is the maximum tightening torque for the fuse terminal?\u003c\/summary\u003e\n      \u003cdiv class=\"sapphire-faq-body\"\u003e\n        \u003cp\u003e\n          The manufacturer's specified maximum terminal torque is\n          \u003cstrong\u003e75 in-lb (approximately 8.5 N·m)\u003c\/strong\u003e.\n        \u003c\/p\u003e\n        \u003cp\u003e\n          Use a suitable torque wrench and do not exceed this value.\n          Ensure all contact surfaces are clean and the fuse,\n          cable lug, washers, and fastening hardware are assembled\n          correctly.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails class=\"sapphire-faq-item\"\u003e\n      \u003csummary\u003eAre MRBF fuses included with the holders?\u003c\/summary\u003e\n      \u003cdiv class=\"sapphire-faq-body\"\u003e\n        \u003cp\u003e\n          No. The holder includes its silicone insulating cover\n          and stainless steel fastening hardware, but fuse\n          cartridges are sold separately.\n        \u003c\/p\u003e\n        \u003cp\u003e\n          For a complete installation, our MRBF kits include\n          your choice of Single or Double holder and two\n          matching MRBF fuses.\n        \u003c\/p\u003e\n        \u003cdiv class=\"sapphire-cta-group\"\u003e\n          \u003ca class=\"sapphire-cta\" href=\"https:\/\/sapphirebattery.ca\/products\/mrbf-battery-fuse-kit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\n            Shop MRBF Fuse Kits\n          \u003c\/a\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Sapphire Energy","offers":[{"title":"Single","offer_id":67789666943295,"sku":"FH-MRBF1","price":7.95,"currency_code":"CAD","in_stock":true},{"title":"Double","offer_id":67789666976063,"sku":"FH-MRBF2","price":14.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0914\/6803\/8463\/files\/MRBF_single_holder_no_fuse_1600px.webp?v=1792713039","url":"https:\/\/sapphirebattery.ca\/products\/mrbf-marine-fuse-holder-single-dual-double-tinned-copper","provider":"Sapphire Energy","version":"1.0","type":"link"}