{"product_id":"mrbf-battery-fuse-kit","title":"MRBF Battery Fuse Kit (Single\/Double)","description":"\u003cdiv class=\"sapphire-product-description\"\u003e\n\u003ch2 class=\"sapphire-title\"\u003eMRBF Marine Battery Fuse Kit – Single \u0026amp; Double\u003c\/h2\u003e\n\u003chr class=\"sapphire-hr\"\u003e\n\u003cp class=\"sapphire-p\"\u003eEverything you need for compact, marine-grade battery fuse protection in one convenient package. Our \u003cstrong\u003eMRBF Battery Fuse Kit\u003c\/strong\u003e combines a corrosion-resistant \u003cstrong\u003etinned copper fuse holder\u003c\/strong\u003e, a protective red silicone insulating cover, stainless steel hardware, and \u003cstrong\u003etwo matching MRBF fuse cartridges\u003c\/strong\u003e in your selected amperage.\u003c\/p\u003e\n\u003cp class=\"sapphire-p\"\u003eChoose a \u003cstrong\u003eSingle or Double (Dual) fuse holder\u003c\/strong\u003e to suit your installation. The Single kit provides one installed fuse plus a convenient spare, while the Double kit includes two fuses to protect separate circuits from a common battery terminal or busbar.\u003c\/p\u003e\n\u003cp class=\"sapphire-p\"\u003eDesigned for marine, RV, LiFePO₄ battery, and off-grid applications, these compact terminal-mounted fuse kits offer high interrupt capacity, \u003cstrong\u003eIP66 waterproof fuse construction\u003c\/strong\u003e, and ignition protection without the bulk of a traditional inline fuse block.\u003c\/p\u003e\n\u003ch3 class=\"sapphire-title\"\u003eWhy You'll Love It\u003c\/h3\u003e\n\u003chr class=\"sapphire-hr\"\u003e\n\u003cul class=\"sapphire-checklist\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Battery Protection Kit:\u003c\/strong\u003e Includes your selected holder, two matching MRBF fuses, silicone insulating cover, and stainless steel hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double Configuration:\u003c\/strong\u003e Choose one protected circuit with a spare fuse or two independently fused connections from a common mounting point.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Interrupt Capacity:\u003c\/strong\u003e MRBF fuses offer up to 10,000A interrupt capacity at 14V DC for protection against high-current electrical faults.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP66 Waterproof \u0026amp; Ignition Protected:\u003c\/strong\u003e Sealed marine-grade fuse cartridges resist dust and powerful water jets and feature ignition-protected construction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-Grade Tinned Copper:\u003c\/strong\u003e Corrosion-resistant holder construction with secure M8 (5\/16\") fuse and cable connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Serviceable:\u003c\/strong\u003e Mount fuse protection close to the battery and easily replace cartridges when required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"sapphire-callout sapphire-callout-blue\"\u003e\n\u003ch3 class=\"sapphire-title\"\u003eChoose Your MRBF Kit\u003c\/h3\u003e\n\u003cp class=\"sapphire-p\"\u003e\u003cstrong\u003eSingle Holder Kit:\u003c\/strong\u003e Includes one Single MRBF holder and two identical fuses. Install one fuse and keep the second as a spare.\u003c\/p\u003e\n\u003cp class=\"sapphire-p\"\u003e\u003cstrong\u003eDouble Holder Kit:\u003c\/strong\u003e Includes one Double (Dual) MRBF holder and two identical fuses, allowing both positions to be used for independently protected circuits.\u003c\/p\u003e\n\u003cp class=\"sapphire-p\"\u003eSelect your preferred \u003cstrong\u003eHolder\u003c\/strong\u003e and \u003cstrong\u003eAmperage\u003c\/strong\u003e options to configure your kit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"sapphire-title\"\u003eSingle vs. Double MRBF Fuse Kits\u003c\/h3\u003e\n\u003chr class=\"sapphire-hr\"\u003e\n\u003cp class=\"sapphire-p\"\u003eBoth configurations include a tinned copper holder, protective silicone cover, stainless steel hardware, and two waterproof, ignition-protected MRBF fuses. The difference is how the two included fuses are used.\u003c\/p\u003e\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 Kit\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"text-align: center;\"\u003eDouble Kit\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;\"\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;\"\u003eFuses Included\u003c\/th\u003e\n\u003ctd style=\"text-align: center;\"\u003e2\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;\"\u003eHolder 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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 class=\"sapphire-title\"\u003eHigh Interrupt Capacity for Battery Protection\u003c\/h3\u003e\n\u003chr class=\"sapphire-hr\"\u003e\n\u003cp class=\"sapphire-p\"\u003eBatteries can deliver extremely high currents during a short circuit. The fuse's \u003cstrong\u003einterrupt rating\u003c\/strong\u003e indicates the maximum prospective fault current it can safely interrupt under specified conditions.\u003c\/p\u003e\n\u003cp class=\"sapphire-p\"\u003eThe included MRBF fuses provide high interrupt capacity in a compact package, making them a practical choice for battery terminal and DC distribution protection.\u003c\/p\u003e\n\u003ctable class=\"sapphire-spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\" style=\"text-align: left;\"\u003eOperating Voltage\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"text-align: center;\"\u003eInterrupt Capacity\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;\"\u003e14V DC\u003c\/th\u003e\n\u003ctd style=\"text-align: center;\"\u003e10,000A (10kA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left;\"\u003e32V DC\u003c\/th\u003e\n\u003ctd style=\"text-align: center;\"\u003e5,000A (5kA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left;\"\u003e58V DC\u003c\/th\u003e\n\u003ctd style=\"text-align: center;\"\u003e2,000A (2kA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"sapphire-p\"\u003eInterrupt capacity decreases at higher operating voltages. Always select a fuse with sufficient interrupt capacity for the available short-circuit current of your battery bank.\u003c\/p\u003e\n\u003ch3 class=\"sapphire-title\"\u003eMarine-Grade Construction\u003c\/h3\u003e\n\u003chr class=\"sapphire-hr\"\u003e\n\u003cp class=\"sapphire-p\"\u003eThe MRBF fuse holder features \u003cstrong\u003etinned copper conductive components\u003c\/strong\u003e for excellent electrical conductivity and corrosion resistance. Stainless steel fastening hardware securely retains the fuse and cable connections without serving as the primary current-carrying path.\u003c\/p\u003e\n\u003cp class=\"sapphire-p\"\u003eThe included MRBF fuse cartridges feature sealed ceramic construction with \u003cstrong\u003eIP66 ingress protection\u003c\/strong\u003e against dust and powerful water jets, along with ignition-protected construction conforming to SAE J1171.\u003c\/p\u003e\n\u003cp class=\"sapphire-p\"\u003eA flexible \u003cstrong\u003ered silicone insulating cover\u003c\/strong\u003e helps shield exposed electrical connections from accidental contact, dust, and splashing water while allowing convenient access for fuse replacement.\u003c\/p\u003e\n\u003ch3 class=\"sapphire-title\"\u003eApplications\u003c\/h3\u003e\n\u003chr class=\"sapphire-hr\"\u003e\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 where fuse voltage and interrupt ratings are suitable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRVs \u0026amp; Camper Vans:\u003c\/strong\u003e Space-saving protection for house batteries and mobile electrical systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOff-Grid Solar Systems:\u003c\/strong\u003e Battery protection for cabins, tiny homes, and remote DC installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Busbars:\u003c\/strong\u003e Individually fused circuits from compatible distribution studs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParallel Battery Banks:\u003c\/strong\u003e Individual battery cable protection where required by the system design.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"sapphire-title\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003chr class=\"sapphire-hr\"\u003e\n\u003ctable class=\"sapphire-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left;\"\u003eHolder Configuration\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 Compatibility\u003c\/th\u003e\n\u003ctd style=\"text-align: center;\"\u003eM8 \u0026amp; M10 \u003cbr\u003e(5\/16\" \u0026amp; 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;\"\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;\"\u003eFuse Construction\u003c\/th\u003e\n\u003ctd style=\"text-align: center;\"\u003eSealed Ceramic Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left;\"\u003eFuse Quantity\u003c\/th\u003e\n\u003ctd style=\"text-align: center;\"\u003e2 – Matching Amperage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left;\"\u003eInterrupt Ratings\u003c\/th\u003e\n\u003ctd style=\"text-align: center;\"\u003e10,000A (14V DC)\u003cbr\u003e5,000A (32V DC)\u003cbr\u003e2,000A (58V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left;\"\u003eFuse Ingress Protection\u003c\/th\u003e\n\u003ctd style=\"text-align: center;\"\u003eIP66\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left;\"\u003eFuse Ignition Protection\u003c\/th\u003e\n\u003ctd style=\"text-align: center;\"\u003eSAE J1171\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left;\"\u003eFuse Dimensions\u003c\/th\u003e\n\u003ctd style=\"text-align: center;\"\u003e23.0 x 27.8 x 16.3 mm\u003cbr\u003e0.91\" x 1.09\" x 0.64\"\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 class=\"sapphire-title\"\u003eWhat's Included\u003c\/h3\u003e\n\u003chr class=\"sapphire-hr\"\u003e\n\u003cul class=\"sapphire-checklist\"\u003e\n\u003cli\u003e1 × MRBF Fuse Holder (Single or Double, as selected)\u003c\/li\u003e\n\u003cli\u003e2 × IP66 MRBF Fuse Cartridges (matching selected amperage)\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\u003cdiv class=\"sapphire-callout sapphire-callout-yellow\"\u003e\n\u003ch3 class=\"sapphire-title\"\u003eAlready Have an MRBF Installation?\u003c\/h3\u003e\n\u003cp class=\"sapphire-p\"\u003eNeed replacement fuses or another holder? Our MRBF components are also available separately. Choose replacement fuses in convenient 2-packs or add another Single or Double tinned copper holder.\u003c\/p\u003e\n\u003cdiv class=\"sapphire-cta-group\"\u003e\n\u003ca class=\"sapphire-cta\" href=\"https:\/\/sapphirebattery.ca\/products\/mrbf-battery-fuse-2pk\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e Shop MRBF Fuses (2-Pack) \u003c\/a\u003e \u003ca class=\"sapphire-cta\" href=\"https:\/\/sapphirebattery.ca\/products\/mrbf-marine-fuse-holder-single-dual-double-tinned-copper\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e Shop MRBF Fuse Holders \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"sapphire-title\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003chr class=\"sapphire-hr\"\u003e\n\u003cdiv class=\"sapphire-faq\"\u003e\n\u003cdetails class=\"sapphire-faq-item\"\u003e\n\u003csummary\u003eWhat's the difference between the Single and Double MRBF Fuse Kits?\u003c\/summary\u003e\n\u003cdiv class=\"sapphire-faq-body\"\u003e\n\u003cp\u003eBoth kits include a tinned copper MRBF fuse holder, two matching fuses, stainless steel hardware, and a red silicone insulating cover.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSingle kit\u003c\/strong\u003e has one fuse position, allowing you to install one fuse and keep the second as a spare.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eDouble (Dual) kit\u003c\/strong\u003e has two fuse positions, allowing both included fuses to be installed simultaneously to protect two separate circuits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"sapphire-faq-item\"\u003e\n\u003csummary\u003eCan I select two different fuse amperages for the Double kit?\u003c\/summary\u003e\n\u003cdiv class=\"sapphire-faq-body\"\u003e\n\u003cp\u003eEach kit includes \u003cstrong\u003etwo identical MRBF fuses\u003c\/strong\u003e in the amperage selected when ordering.\u003c\/p\u003e\n\u003cp\u003eThe Double holder can accommodate different fuse amperages in its two positions. If your circuits require different ratings, additional MRBF fuses can be purchased separately in convenient 2-packs.\u003c\/p\u003e\n\u003cp\u003eWhen installing different ratings, position the \u003cstrong\u003esmaller-rated fuse on the outermost (furthest) fuse position\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv class=\"sapphire-cta-group\"\u003e\u003ca class=\"sapphire-cta\" href=\"https:\/\/sapphirebattery.ca\/products\/mrbf-battery-fuse-2pk\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e Shop Additional MRBF Fuses \u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"sapphire-faq-item\"\u003e\n\u003csummary\u003eCan I mount the MRBF holder directly onto a battery terminal?\u003c\/summary\u003e\n\u003cdiv class=\"sapphire-faq-body\"\u003e\n\u003cp\u003eYes. The holder has an \u003cstrong\u003eM10 (3\/8\") mounting hole\u003c\/strong\u003e that accommodates compatible \u003cstrong\u003eM8 (5\/16\") or M10 (3\/8\") battery studs\u003c\/strong\u003e, as well as busbar connections.\u003c\/p\u003e\n\u003cp\u003eWhen installing on an M8 stud, use a suitable flat washer to support the larger mounting hole. Ensure clean contact surfaces, secure fastening, and sufficient thread engagement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"sapphire-faq-item\"\u003e\n\u003csummary\u003eCan I install an MRBF fuse directly onto a battery terminal without the holder?\u003c\/summary\u003e\n\u003cdiv class=\"sapphire-faq-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eNo. Always use a compatible MRBF fuse holder.\u003c\/strong\u003e Installing a fuse directly onto a battery terminal allows the mounting bolt to create an electrical path that bypasses the fuse element entirely.\u003c\/p\u003e\n\u003cp\u003eThis effectively renders the fuse useless. During a short circuit, current can flow through the bolt rather than the fuse, leaving the connected wiring without the intended overcurrent protection.\u003c\/p\u003e\n\u003cp\u003eA proper MRBF holder uses an electrically isolated terminal stud to ensure current passes through the fuse element before reaching the cable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"sapphire-faq-item\"\u003e\n\u003csummary\u003eAre these MRBF fuses and holders compatible with Blue Sea Systems products?\u003c\/summary\u003e\n\u003cdiv class=\"sapphire-faq-body\"\u003e\n\u003cp\u003eYes. These components use the standard MRBF configuration and are compatible with Blue Sea Systems MRBF fuses and fuse holders.\u003c\/p\u003e\n\u003cp\u003eAlways verify fuse amperage, voltage rating, mounting compatibility, and holder current limits for your installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"sapphire-faq-item\"\u003e\n\u003csummary\u003eAre the MRBF fuses waterproof and ignition protected?\u003c\/summary\u003e\n\u003cdiv class=\"sapphire-faq-body\"\u003e\n\u003cp\u003eYes. The included MRBF fuse cartridges feature \u003cstrong\u003eIP66 ingress protection\u003c\/strong\u003e, providing dust-tight construction and resistance to powerful water jets.\u003c\/p\u003e\n\u003cp\u003eThe fuses also feature ignition-protected construction conforming to SAE J1171. The fuse holder includes a protective silicone cover, but the complete holder assembly is not a sealed waterproof enclosure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"sapphire-faq-item\"\u003e\n\u003csummary\u003eCan I use this kit with a LiFePO₄ battery?\u003c\/summary\u003e\n\u003cdiv class=\"sapphire-faq-body\"\u003e\n\u003cp\u003eYes. MRBF fuse kits are suitable for LiFePO₄ battery systems when the selected fuse has the appropriate amperage, voltage rating, and interrupt capacity.\u003c\/p\u003e\n\u003cp\u003eThe holder and fuses have a maximum rating of \u003cstrong\u003e58V DC\u003c\/strong\u003e. Some nominal 48V LiFePO₄ systems can exceed this voltage during charging, so verify the maximum system voltage before installation.\u003c\/p\u003e\n\u003cp\u003eAt 58V DC, the fuses have an interrupt capacity of \u003cstrong\u003e2,000A\u003c\/strong\u003e. Battery banks with higher available fault currents may require a higher-interrupt-capacity fuse, such as Class-T.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"sapphire-faq-item\"\u003e\n\u003csummary\u003eWhat is the maximum current rating of the Double holder?\u003c\/summary\u003e\n\u003cdiv class=\"sapphire-faq-body\"\u003e\n\u003cp\u003eThe Double holder has a maximum combined current rating of \u003cstrong\u003e300A total\u003c\/strong\u003e across both fuse positions.\u003c\/p\u003e\n\u003cp\u003eThe sum of the currents flowing through its common connection must remain within this limit, regardless of the individual fuse amperages installed. Each circuit must also be protected by an appropriately sized fuse.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"sapphire-faq-item\"\u003e\n\u003csummary\u003eWhat size cable lugs and mounting studs are required?\u003c\/summary\u003e\n\u003cdiv class=\"sapphire-faq-body\"\u003e\n\u003cp\u003eThe fuse and cable terminals use \u003cstrong\u003eM8 (5\/16\") studs\u003c\/strong\u003e, requiring compatible cable lugs.\u003c\/p\u003e\n\u003cp\u003eThe holder's main mounting hole is \u003cstrong\u003eM10 (3\/8\")\u003c\/strong\u003e and accommodates compatible M8 or M10 battery and busbar studs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"sapphire-faq-item\"\u003e\n\u003csummary\u003eWhat is the maximum tightening torque?\u003c\/summary\u003e\n\u003cdiv class=\"sapphire-faq-body\"\u003e\n\u003cp\u003eThe manufacturer's specified maximum fuse-terminal torque is \u003cstrong\u003e75 in-lb (8.5 N·m)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eUse an appropriate torque wrench, avoid overtightening, and ensure all contact surfaces are clean and properly assembled.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sapphire Energy","offers":[{"title":"Single \/ 40 Amp","offer_id":67838228398399,"sku":null,"price":22.9,"currency_code":"CAD","in_stock":false},{"title":"Single \/ 50 Amp","offer_id":67847993524543,"sku":null,"price":22.9,"currency_code":"CAD","in_stock":true},{"title":"Single \/ 60 Amp","offer_id":67847993557311,"sku":null,"price":22.9,"currency_code":"CAD","in_stock":false},{"title":"Single \/ 80 Amp","offer_id":67847993590079,"sku":null,"price":22.9,"currency_code":"CAD","in_stock":false},{"title":"Single \/ 100 Amp","offer_id":67847993622847,"sku":null,"price":22.9,"currency_code":"CAD","in_stock":true},{"title":"Single \/ 125 Amp","offer_id":67847993655615,"sku":null,"price":22.9,"currency_code":"CAD","in_stock":false},{"title":"Single \/ 150 Amp","offer_id":67847993688383,"sku":null,"price":22.9,"currency_code":"CAD","in_stock":true},{"title":"Single \/ 200 Amp","offer_id":67847993721151,"sku":null,"price":22.9,"currency_code":"CAD","in_stock":true},{"title":"Single \/ 300 Amp","offer_id":67847993753919,"sku":null,"price":22.9,"currency_code":"CAD","in_stock":true},{"title":"Double \/ 40 Amp","offer_id":67838228562239,"sku":null,"price":29.9,"currency_code":"CAD","in_stock":false},{"title":"Double \/ 50 Amp","offer_id":67847993786687,"sku":null,"price":29.9,"currency_code":"CAD","in_stock":true},{"title":"Double \/ 60 Amp","offer_id":67847993819455,"sku":null,"price":29.9,"currency_code":"CAD","in_stock":false},{"title":"Double \/ 80 Amp","offer_id":67847993852223,"sku":null,"price":29.9,"currency_code":"CAD","in_stock":false},{"title":"Double \/ 100 Amp","offer_id":67847993884991,"sku":null,"price":29.9,"currency_code":"CAD","in_stock":true},{"title":"Double \/ 125 Amp","offer_id":67847993917759,"sku":null,"price":29.9,"currency_code":"CAD","in_stock":false},{"title":"Double \/ 150 Amp","offer_id":67847993950527,"sku":null,"price":29.9,"currency_code":"CAD","in_stock":true},{"title":"Double \/ 200 Amp","offer_id":67847993983295,"sku":null,"price":29.9,"currency_code":"CAD","in_stock":true},{"title":"Double \/ 300 Amp","offer_id":67847994016063,"sku":null,"price":29.9,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0914\/6803\/8463\/files\/MRBF_single_holder_with_ceramic_fuse_exploded_1600px.webp?v=1792713039","url":"https:\/\/sapphirebattery.ca\/products\/mrbf-battery-fuse-kit","provider":"Sapphire Energy","version":"1.0","type":"link"}