{"product_id":"blue-sea-e-series-on-off-battery-switch","title":"Blue Sea 350A Red e-Series On Off Battery Switch","description":"\u003ch2\u003eHigh-current battery isolation for safer marine power systems\u003c\/h2\u003e \u003cp\u003eThe Blue Sea e-Series ON\/OFF battery switch is designed to give you confident control over a single battery feeding a single load group—ideal when you want a clear, manual way to isolate power for servicing, storage, or fault finding. In marine electrical systems, a dedicated battery isolator helps reduce the risk of accidental short circuits, parasitic drain, and unintended battery discharge when the vessel is unattended.\u003c\/p\u003e \u003cp\u003eBuilt for demanding marine environments, this switch suits common Australian boating and 4WD auxiliary power setups where reliability and straightforward operation matter. Use it to quickly cut power to a house circuit, isolate a battery before maintenance, or create a simple, easy-to-understand system layout that technicians and owners can diagnose without guesswork.\u003c\/p\u003e  \u003ch2\u003eDesigned for marine installation requirements\u003c\/h2\u003e \u003cp\u003eThis model is ignition protected, making it appropriate for installation on gasoline-powered boats where equipment may be exposed to fuel vapours. That extra layer of safety consideration can be important when upgrading older wiring or bringing a DIY install closer to accepted marine practices.\u003c\/p\u003e \u003cp\u003eThe e-Series housing also supports flexible installation, with a case design that allows either surface mounting or rear panel mounting. That means you can achieve a cleaner helm or switch panel finish, or mount it where cable routing is most practical—helpful when working with tight compartments and heavier battery cabling.\u003c\/p\u003e  \u003ch2\u003eWhen this ON\/OFF switch is the right choice\u003c\/h2\u003e \u003cp\u003eIf your system is a single battery supplying a single circuit group, an ON\/OFF battery switch is often the most direct option. It’s well suited to:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSmall to mid-size boats running a dedicated house battery\u003c\/li\u003e \u003cli\u003eRunabouts and fishing boats needing a simple battery cut-off for storage\u003c\/li\u003e \u003cli\u003eAuxiliary battery isolation in 4WDs, camper trailers, and portable power bays\u003c\/li\u003e \u003cli\u003eWorkshop or test-bench DC systems where quick isolation improves safety during changes\u003c\/li\u003e \u003c\/ul\u003e  \u003ch2\u003eKey features\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eSingle-circuit ON\/OFF control\u003c\/strong\u003e to isolate one battery from one load group\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eIgnition protected\u003c\/strong\u003e for use on gasoline-powered boats where vapour safety is a consideration\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eFlexible mounting options\u003c\/strong\u003e with surface or rear panel mounting to suit your layout\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eHigh-current capability\u003c\/strong\u003e suited to demanding DC loads common in marine and automotive auxiliary systems\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eClear manual isolation\u003c\/strong\u003e to support maintenance, storage, and fault diagnosis workflows\u003c\/li\u003e \u003c\/ul\u003e  \u003ch2\u003eWhy it helps in real-world installations\u003c\/h2\u003e \u003cp\u003eA robust battery switch can reduce common electrical issues such as slow battery drain from standby loads, hard-to-trace intermittent faults, and unsafe service conditions where circuits remain energised. By adding a dedicated isolation point, you can simplify troubleshooting and help protect sensitive electronics during maintenance or system changes.\u003c\/p\u003e \u003cp\u003eFor installers and DIY owners alike, the value is in predictability: a clear OFF position when you need the system de-energised, and a direct ON position when you’re ready to run. Pair it with appropriately sized cabling, correct terminal torque, and suitable circuit protection to support long-term reliability in harsh marine conditions.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":55056811524435,"sku":"BS-9003EB","price":43.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1076\/9324\/4755\/files\/blue-sea-battery-switch-on-off-BS-9003EB.jpg?v=1790336299","url":"https:\/\/progradewarehouse.com\/products\/blue-sea-e-series-on-off-battery-switch","provider":"PRO GRADE WAREHOUSE","version":"1.0","type":"link"}