{"product_id":"enerdrive-12v-150a-change-over-relay","title":"Enerdrive 12V 150A Change Over Relay","description":"\u003ch2\u003eHigh-Capacity Switching for Smart Alternator and Dual DC2DC Setups\u003c\/h2\u003e\u003cp\u003eManaging high-current power paths in modern vehicles requires switching components engineered to handle sustained electrical loads without failure. The \u003cstrong\u003eEnerdrive 12V 150A Change Over Relay\u003c\/strong\u003e is purpose-built for demanding automotive, 4WD, and caravan electrical systems. Specifically specified for \u003cstrong\u003esmart alternator DC2DC charger installations\u003c\/strong\u003e and \u003cstrong\u003edual DC2DC charger configurations\u003c\/strong\u003e, this heavy-duty changeover relay provides the reliable high-current switching required to safely isolate or combine power sources in complex dual battery setups.\u003c\/p\u003e\u003ch3\u003eEngineered for High-Current Reliability\u003c\/h3\u003e\u003cp\u003eStandard automotive relays are typically rated for 30A to 40A and can quickly overheat, experience voltage drop, or suffer from welded contacts when subjected to the high continuous current draw of modern charging systems. This \u003cstrong\u003e150A changeover relay\u003c\/strong\u003e solves that problem by offering a substantial current capacity margin. It reduces the risk of thermal overload and system downtime when running parallel chargers or managing high-output smart alternator feeds in harsh Australian touring conditions.\u003c\/p\u003e\u003cp\u003eThe unit is constructed with installation efficiency and long-term durability in mind. It features three heavy-duty threaded terminal studs designed to secure high-current ring terminals firmly, minimising contact resistance and preventing loose connections over corrugated roads. For streamlined integration into your canopy, engine bay, or battery box, the housing incorporates robust side-mounted tabs for secure chassis mounting, alongside a recessed control connector socket.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e150A Continuous Current Rating:\u003c\/strong\u003e Built to handle the heavy electrical loads of high-output charging systems without overheating or contact degradation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimised for DC2DC Applications:\u003c\/strong\u003e Specifically recommended for smart alternator setups and dual DC2DC charger installations requiring automated source switching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Terminal Studs:\u003c\/strong\u003e Three robust threaded studs ensure secure, low-resistance connections for thick-gauge battery and charger cabling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn-Housing Wiring Schematic:\u003c\/strong\u003e A clear internal circuit diagram is printed directly on the relay body for quick reference and accurate wiring during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Mounting Tabs:\u003c\/strong\u003e Heavy-duty side tabs allow for rigid, vibration-resistant mounting to vehicle bulkheads or electrical distribution boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated Control Socket:\u003c\/strong\u003e Features an integrated socket for a clean, secure control signal connection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eImportant Installation Requirements\u003c\/h3\u003e\u003cp\u003ePlease note that this changeover relay \u003cstrong\u003emust be used in conjunction with the compatible Enerdrive Part No R-1670916-KIT\u003c\/strong\u003e to complete the control connection. Whether this kit is included or requires separate purchase is not specified in the base relay assembly data, so please verify your system components prior to commencing your wiring installation.\u003c\/p\u003e\u003ch3\u003eUpgrade Your Dual Battery Switching System\u003c\/h3\u003e\u003cp\u003eEnsure your dual DC2DC or smart alternator charging system operates safely and efficiently under heavy loads. Add the Enerdrive 12V 150A Change Over Relay to your build list today and remember to account for the required R-1670916-KIT to complete your installation.\u003c\/p\u003e","brand":"Enerdrive","offers":[{"title":"Default Title","offer_id":43639876681789,"sku":"R-P2512150HD","price":175.03,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/enerdrive-12v-150a-change-over-relay-r-p2512150hd.jpg?v=1792906484","url":"https:\/\/www.solar4rvs.com.au\/products\/enerdrive-12v-150a-change-over-relay","provider":"Solar 4 RVs","version":"1.0","type":"link"}