{"product_id":"joinfworld-500a-battery-disconnect-switch-12-36v-heavy-duty-with-lockout-plate-fixed-handle-3-8-studs","title":"Joinfworld 500A Battery Disconnect Switch 12–36V Heavy-Duty with Lockout Plate, Fixed Handle \u0026 3\/8\" Studs","description":"\u003cp\u003e\u003cstrong\u003eThe Joinfworld 500A Battery Disconnect Switch is a heavy-duty, manual master cut-off that isolates 12V–36V DC systems to stop parasitic drain and provide a secure, lockable power shutoff.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for trucks, RVs, boats, UTVs and off-road vehicles, this 500-amp battery kill switch delivers a robust, compact way to disconnect your battery quickly and safely. Built from durable metal and copper with a fixed die-cast handle and threaded stud terminals, it supports high surge currents and includes a lockout plate for theft prevention and maintenance safety.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this switch protect batteries when vehicles sit idle?\u003c\/h3\u003e\n\u003cp\u003eBy mechanically breaking the DC circuit, the switch eliminates parasitic current draw from accessories, alarms and control modules. That prevents slow discharge while your vehicle or boat is stored, helping preserve charge and extend battery service life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStops background drains from electronics\u003c\/li\u003e\n  \u003cli\u003eSuitable for long-term storage of cars, RVs and boats\u003c\/li\u003e\n  \u003cli\u003eManual on\/off action guarantees no phantom loads\u003c\/li\u003e\n  \u003cli\u003eLock plate prevents accidental re-connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat electrical loads and voltages can the Joinfworld 500A handle?\u003c\/h3\u003e\n\u003cp\u003eThis isolator is engineered for DC systems from 12V up to 36V and is rated for continuous currents up to 500A, with instantaneous surge capacity around 5000A. It’s appropriate for high-current starters, winches and large accessory banks used in commercial and recreational vehicles.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorking voltages: 12V, 24V, 36V\u003c\/li\u003e\n  \u003cli\u003eRated continuous current: 500A\u003c\/li\u003e\n  \u003cli\u003eInstantaneous current tolerance: approximately 5000A\u003c\/li\u003e\n  \u003cli\u003e2 x M10 (3\/8\") threaded studs for heavy cable connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and daily use?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: connect battery cables to the two provided stud terminals and secure with the included nuts. Operation requires a simple half-turn of the fixed handle to open or close the circuit, and the included lockout plate lets you secure the switch position during service or storage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes two 3\/8\" (M10) threaded studs and nuts\u003c\/li\u003e\n  \u003cli\u003eFixed die-cast handle for quick manual operation\u003c\/li\u003e\n  \u003cli\u003eLock plate secures the switch in the off position\u003c\/li\u003e\n  \u003cli\u003eWeather-resistant construction for exterior mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere is this switch typically installed and who benefits most?\u003c\/h3\u003e\n\u003cp\u003eThe Joinfworld 500A disconnect fits a wide range of applications — from heavy-duty commercial trucks to marine craft and recreational vehicles — wherever a reliable, high-current isolator is needed. It’s especially useful for fleet managers, boat owners, off-road enthusiasts and anyone who needs a secure, serviceable way to cut battery power.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIdeal for semi trucks, RVs, yachts, boats, and UTVs\u003c\/li\u003e\n  \u003cli\u003eGood for workshop or field service lockout\/tagout\u003c\/li\u003e\n  \u003cli\u003eCompact footprint for panels and battery boxes\u003c\/li\u003e\n  \u003cli\u003eDurable for harsher outdoor and marine environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Install the Joinfworld 500A Battery Disconnect Switch if you need a rugged, easy-to-use master cut-off for 12–36V systems that supports high startup currents and gives you a lockable safety option. It’s aimed at professionals and owners who want a dependable way to prevent battery drain, secure vehicles during storage or maintenance, and provide a clear mechanical isolation point for electrical work.\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 500A continuous with ~5000A instantaneous capacity, suitable for starter and winch surge currents.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the lockout plate included for panel mounting?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The switch includes a lockable plate to secure the off position for safety and anti-tamper use.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Joinfworld","offers":[{"title":"Default Title","offer_id":48085510979742,"sku":"B0BGXBZN5T","price":40.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/joinfworld-front-panel-switch.jpg?v=1785871399","url":"https:\/\/northtrailauto.ca\/products\/joinfworld-500a-battery-disconnect-switch-12-36v-heavy-duty-with-lockout-plate-fixed-handle-3-8-studs","provider":"North Trail Auto","version":"1.0","type":"link"}