{"product_id":"fastronix-solutions-3-8-2-post-spst-battery-disconnect-switch-180a-1000a-nhra-compliant-flush-mount","title":"Fastronix Solutions 3\/8\" 2-Post SPST Battery Disconnect Switch — 180A\/1000A NHRA-Compliant Flush-Mount","description":"\u003cp\u003e\u003cstrong\u003eThe Fastronix 3\/8\" 2-post SPST battery disconnect switch instantly isolates an entire vehicle or boat electrical system and is rated 180A continuous and 1000A intermittent for high-current applications.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt for motorsport, marine and recreational power systems, this rugged rotary-style switch gives a single, reliable point to cut battery feed to the whole electrical network. Compact enough to fit in a 3\/4\" mounting hole yet adaptable to surface mounting with Fastronix's optional 980-000 bracket, the device balances heavy-duty performance with simple installation and routine safety use.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this switch protect my vehicle or boat when the battery is relocated?\u003c\/h3\u003e\n\u003cp\u003eThe Fastronix disconnect meets NHRA requirements for battery relocation by providing a clearly accessible master cutoff. Turning the switch interrupts battery power to prevent unintended starts, reduce fire risk from wiring faults, and comply with competition safety standards.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle-point system shutoff for complete electrical isolation\u003c\/li\u003e\n  \u003cli\u003eNHRA-compliant when battery position changes\u003c\/li\u003e\n  \u003cli\u003eDurable metal studs and robust internal contacts for reliable breaks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat current loads and duty cycles can this switch handle?\u003c\/h3\u003e\n\u003cp\u003eThis model is rated for 180 amps continuous load and can handle short intermittent surges up to 1000 amps, making it suitable for starters, winches and large accessory loads. The rating ensures it tolerates normal running currents with margin for starter cranking or other transient peaks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e180A continuous rating for sustained electrical systems\u003c\/li\u003e\n  \u003cli\u003e1000A intermittent capacity to survive short high-current events\u003c\/li\u003e\n  \u003cli\u003e3\/8\" studs compatible with heavy-gauge battery cable lugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I mount and protect the switch in different installations?\u003c\/h3\u003e\n\u003cp\u003eInstall the switch through a standard 3\/4\" hole for a neat flush panel fit, or use the optional Fastronix 980-000 switch mount to secure it to any flat surface using two 1\/4\" fasteners. For exposed terminals or high-vibration environments, Fastronix 404-110 terminal covers add electrical protection and reduce corrosion risk.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFlush panel install in a 3\/4\" hole for clean appearance\u003c\/li\u003e\n  \u003cli\u003eSurface-mountable with 980-000 adapter for flexible placement\u003c\/li\u003e\n  \u003cli\u003eCompatible with 404-110 terminal covers to insulate studs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere is this switch most useful in everyday and specialized use?\u003c\/h3\u003e\n\u003cp\u003eWhile common in race cars to meet technical rules, the switch is also a practical safety and storage accessory for RVs, boats, off-road rigs and workshop power systems. It provides a simple, visible way to cut power for long-term storage, maintenance, or emergency isolation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRV battery cutoff to prevent drain during storage\u003c\/li\u003e\n  \u003cli\u003eMarine and off-road vehicles requiring robust current capacity\u003c\/li\u003e\n  \u003cli\u003eRace cars with relocated batteries needing a single accessible kill\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Technicians, racers, marine installers and DIY owners who need a compact, high-capacity master battery disconnect. If you require a dependable manual cutoff rated for heavy continuous loads and large intermittent surges — and want multiple mounting options plus optional terminal protection — the Fastronix 3\/8\" 2-post SPST switch is engineered for those needs.\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 handle starter motor surges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It’s rated 180A continuous with 1000A intermittent capacity to tolerate starter and short surge loads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need extra parts to surface-mount the switch?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: If not using a 3\/4\" hole, you'll need the Fastronix 980-000 mount to fasten it to any flat surface.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Fastronix Solutions","offers":[{"title":"Default Title","offer_id":48083147325598,"sku":"B011EYWMDS","price":57.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/fastronix-front-panel-switch.jpg?v=1785826452","url":"https:\/\/northtrailauto.ca\/products\/fastronix-solutions-3-8-2-post-spst-battery-disconnect-switch-180a-1000a-nhra-compliant-flush-mount","provider":"North Trail Auto","version":"1.0","type":"link"}