{"product_id":"fastronix-solutions-300a-battery-disconnect-switch-1-2in-severe-duty-with-face-plate-and-copper-studs","title":"Fastronix Solutions 300A Battery Disconnect Switch 1\/2in Severe-Duty with Face Plate and Copper Studs","description":"\u003cp\u003e\u003cstrong\u003eThe Fastronix 300A 1\/2\" Severe Duty Battery Disconnect Switch is a heavy-duty on\/off master battery switch engineered to isolate 12V battery systems safely and reliably in demanding environments.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned for industrial vehicles, marine craft, RVs and heavy equipment, this disconnect switch gives you a clear, durable method to cut power when performing maintenance, preventing battery drain, or securing equipment. Built with robust copper main studs and a keyed index pin, the unit balances continuous high-current handling with installation stability and accessory flexibility.\u003c\/p\u003e\n\n\u003ch3\u003eHow much current can this switch handle and for how long?\u003c\/h3\u003e\n\u003cp\u003eThis switch is rated for continuous heavy use and momentary higher loads. It supports up to 300A continuous at 12VDC and can withstand intermittent surges up to 2000A, making it suitable for most starter and high-draw accessory circuits.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/2\" copper main studs rated 300A continuous at 12VDC\u003c\/li\u003e\n  \u003cli\u003eIntermittent surge capability: 2000A\u003c\/li\u003e\n  \u003cli\u003eSolid copper conductors for minimal voltage drop\u003c\/li\u003e\n  \u003cli\u003eDurable contacts for frequent switching in harsh conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this switch for multiple circuits or accessories?\u003c\/h3\u003e\n\u003cp\u003eThe Fastronix switch can be configured as a single pole or dual pole device, giving you flexibility to isolate one battery bank or two circuits at once. It also includes smaller auxiliary studs for low-current accessories like indicator lamps or remote switches.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSelectable single-pole or dual-pole wiring\u003c\/li\u003e\n  \u003cli\u003eAuxiliary studs rated 20A@12VDC for indicators or small loads\u003c\/li\u003e\n  \u003cli\u003eMounting face plate compatible with standard panel cutouts\u003c\/li\u003e\n  \u003cli\u003eWorks with Fastronix 404-116 terminal covers for neat installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does installation and durability hold up in tough environments?\u003c\/h3\u003e\n\u003cp\u003eThis switch is built for severe-duty service with features that resist rotation and maintain electrical integrity under vibration. An index pin secures the unit after mounting, while copper studs and a rugged face plate provide reliable mechanical and electrical performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIndex pin prevents post-installation rotation and loosening\u003c\/li\u003e\n  \u003cli\u003e1\/2\" copper studs for strong mechanical clamping and conductivity\u003c\/li\u003e\n  \u003cli\u003eOptional terminal covers enhance safety and appearance\u003c\/li\u003e\n  \u003cli\u003eFace plate provides tidy panel mounting and weather resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat accessories and safety options are available?\u003c\/h3\u003e\n\u003cp\u003eFor a finished, safe installation pair the switch with Fastronix terminal covers and standard mounting hardware. The auxiliary studs allow safe connection of indicator lights or small remote controls without loading the main studs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse Fastronix 404-116 terminal covers for protection and tidy wiring\u003c\/li\u003e\n  \u003cli\u003eAux studs permit indicator lights or remote on\/off circuits (20A max)\u003c\/li\u003e\n  \u003cli\u003eFace plate designed for secure panel mounting and visual status\u003c\/li\u003e\n  \u003cli\u003eCompatible with common battery cable lug sizes on 1\/2\" studs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Installers, fleet managers, boat owners, RV technicians and DIYers who need a compact, high-current battery isolation switch that stands up to vibration, high loads and repeated use. If you need reliable battery isolation for starting, maintenance, security, or to prevent parasitic drain while retaining the option to power small indicators or accessories, the Fastronix 300A severe duty disconnect is built to meet those demands without complex wiring changes.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this switch be used for dual battery systems?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it can be wired single pole or dual pole to isolate one or two circuits as needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are there smaller studs for indicator lights?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — optional auxiliary studs are rated 20A@12VDC for indicators or small accessories.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Fastronix Solutions","offers":[{"title":"Default Title","offer_id":55170257617239,"sku":"B07L2JRHRQ","price":76.39,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/fastronix-front-face-plate-switch.jpg?v=1790426005","url":"https:\/\/britishgarage.co.uk\/products\/fastronix-solutions-300a-battery-disconnect-switch-1-2in-severe-duty-with-face-plate-and-copper-studs","provider":"British Garage","version":"1.0","type":"link"}