{"product_id":"blue-sea-battery-switch-300a-on-off-w-key-black","title":"Blue Sea 300A Black Mini m-Series On\/Off Battery Switch w\/ Key","description":"\u003ch2\u003eBlue Sea m-Series Mini: High-Amperage Battery Isolation with Security Key\u003c\/h2\u003e \u003ch3\u003eCompact Power Management for Marine and RV Systems\u003c\/h3\u003e \u003cp\u003eThe \u003cstrong\u003eBlue Sea 300A Mini m-Series Battery Switch\u003c\/strong\u003e delivers professional-grade power isolation in a compact footprint, solving the challenge of limited installation space on modern boats, caravans, and 4WDs. Despite its small size, this switch is engineered to handle significant power loads, offering a continuous rating of \u003cstrong\u003e300A\u003c\/strong\u003e and a cranking rating of up to \u003cstrong\u003e900A\u003c\/strong\u003e. This makes it an ideal solution for managing main battery banks without the bulk associated with traditional heavy-duty switches.\u003c\/p\u003e \u003cp\u003eDesigned for versatility, this unit operates effectively across a wide voltage range. While the specifications list a maximum of \u003cstrong\u003e48V DC\u003c\/strong\u003e, it is perfectly suited for standard \u003cstrong\u003e12V and 24V systems\u003c\/strong\u003e commonly found in automotive and marine applications. This flexibility ensures it can accommodate future system upgrades, such as moving to higher voltage lithium banks, without needing replacement.\u003c\/p\u003e  \u003ch3\u003eEnhanced Security with Removable Key\u003c\/h3\u003e \u003cp\u003eUnlike standard rotary switches, this model features a \u003cstrong\u003eremovable key\u003c\/strong\u003e mechanism. This function is critical for preventing unauthorised use of your vessel or vehicle, acting as an effective theft deterrent. Additionally, it serves as a safety lockout during maintenance, ensuring that the electrical system cannot be accidentally engaged while you are working on the engine or electrical circuits.\u003c\/p\u003e  \u003ch3\u003eIgnition Protected for Safety\u003c\/h3\u003e \u003cp\u003eSafety is paramount in enclosed engine rooms and fuel storage areas. This switch is \u003cstrong\u003eignition protected\u003c\/strong\u003e, meaning it is safe for installation aboard gasoline-powered boats. The design prevents internal sparks from venting and potentially igniting surrounding fumes, complying with ISO 8846 and SAE J1171 standards. Whether you are outfitting a ski boat or a camper trailer, this feature provides peace of mind regarding fire safety.\u003c\/p\u003e  \u003ch3\u003eRobust Construction and Installation\u003c\/h3\u003e \u003cp\u003eBuilt to withstand harsh Australian marine conditions, the switch features \u003cstrong\u003etinned copper studs\u003c\/strong\u003e for maximum conductivity and corrosion resistance. The \u003cstrong\u003e3\/8\"-16 (Approx. M10) stud terminals\u003c\/strong\u003e are designed to accept heavy-duty cable lugs up to \u003cstrong\u003e4\/0 AWG (approx. 120mm²)\u003c\/strong\u003e, ensuring you can use the appropriate cable gauge to minimise voltage drop.\u003c\/p\u003e \u003cp\u003eInstallation is simplified with a case design that allows for surface, front panel, or rear panel mounting. The included isolating cover with snap-on sections protects rear contacts, preventing accidental short circuits.\u003c\/p\u003e \u003cp\u003e*Note typical de-rating factors apply to maximum current ratings.\u003c\/p\u003e  \u003cul\u003e   \u003cli\u003e \u003cstrong\u003e300A continuous rating\u003c\/strong\u003e handles high-demand loads in a compact frame\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eRemovable key\u003c\/strong\u003e enhances security and allows for service lockout\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eIgnition protected\u003c\/strong\u003e design is safe for use in petrol engine compartments\u003c\/li\u003e   \u003cli\u003e \u003cstrong\u003eTinned copper terminals\u003c\/strong\u003e resist corrosion and ensure reliable power transfer\u003c\/li\u003e   \u003cli\u003eFlexible mounting options suit surface or panel installations\u003c\/li\u003e   \u003cli\u003eCompatible with \u003cstrong\u003e12V, 24V, and 48V\u003c\/strong\u003e electrical systems\u003c\/li\u003e \u003c\/ul\u003e  \u003ch3\u003eSecure Your Electrical System Today\u003c\/h3\u003e \u003cp\u003eUpgrade your battery management system with a switch that prioritises safety and security. \u003cstrong\u003eOrder the Blue Sea m-Series Battery Switch with Key\u003c\/strong\u003e to ensure reliable isolation for your boat or touring vehicle.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":55056816603475,"sku":"BS-6005200B","price":31.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1076\/9324\/4755\/files\/blue-sea-mini-m-series-battery-switch-black-BS-6005200B.webp?v=1790336318","url":"https:\/\/progradewarehouse.com\/products\/blue-sea-battery-switch-300a-on-off-w-key-black","provider":"PRO GRADE WAREHOUSE","version":"1.0","type":"link"}