{"product_id":"enerdrive-350a-on-off-battery-switch-with-alternator-field-disconnect","title":"Enerdrive 350A ON\/OFF Battery Switch with Alternator Field Disconnect","description":"\u003ch2\u003eHigh-Capacity Single-Circuit Battery Isolation and Alternator Protection\u003c\/h2\u003e\n\u003cp\u003eManaging high-current DC electrical systems requires reliable isolation hardware capable of handling substantial loads without excessive voltage drop or thermal buildup. The \u003cstrong\u003eEnerdrive 350A ON\/OFF Battery Switch with Alternator Field Disconnect\u003c\/strong\u003e is engineered to provide dependable, single-circuit isolation for demanding marine, RV, caravan, and off-grid power setups. Designed to connect a single battery bank to a dedicated load group, this heavy-duty \u003cstrong\u003ebattery isolator switch\u003c\/strong\u003e gives operators complete control over their primary power supply, preventing parasitic battery drain during storage and offering an immediate disconnect point during maintenance or electrical emergencies.\u003c\/p\u003e\n\n\u003ch3\u003eIntegrated Alternator Field Disconnect (AFD)\u003c\/h3\u003e\n\u003cp\u003eA standout technical advantage of this unit over standard isolation switches is the built-in \u003cstrong\u003eAlternator Field Disconnect (AFD)\u003c\/strong\u003e. In engine-driven charging systems, accidentally turning a standard battery switch to the OFF position while the engine is running suddenly removes the battery load from the charging circuit. This sudden disconnection creates a high-voltage spike (load dump) that can instantly destroy the alternator's internal rectifier diodes and potentially damage sensitive downstream electronics. The integrated AFD circuit interrupts the alternator field current prior to breaking the main battery connection, safely shutting down the alternator output and protecting your charging hardware from costly accidental damage.\u003c\/p\u003e\n\n\u003ch3\u003eIgnition Protection for Marine and Petrol Environments\u003c\/h3\u003e\n\u003cp\u003eSafety in enclosed engine bays and fuel storage areas is critical. Unlike basic automotive switches that can produce internal electrical arcs when switching heavy loads, this Enerdrive switch is fully \u003cstrong\u003eignition protected\u003c\/strong\u003e. This certification makes it safe for installation aboard petrol-powered (gasoline) boats, marine vessels, and specialized commercial vehicles where explosive fumes or gases may accumulate in bilges or compartments. Combined with a robust housing and an ergonomic, high-visibility control dial, operators can confidently identify switch status at a glance and operate the unit in challenging conditions.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e350A Continuous Rating:\u003c\/strong\u003e Handles high-amperage DC loads, making it suitable for large inverter banks, winches, and primary house or starter battery circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlternator Field Disconnect (AFD):\u003c\/strong\u003e Protects alternator diodes against voltage spikes if the switch is accidentally turned off while the engine is running.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Protected Construction:\u003c\/strong\u003e Prevents internal sparks from igniting surrounding flammable vapours, meeting safety requirements for petrol marine engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Mounting Versatility:\u003c\/strong\u003e Case architecture supports both surface mounting and rear-panel mounting to suit custom switchboards or bulkhead installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eErgonomic Control Dial:\u003c\/strong\u003e Large, tactile knob with high-contrast status indicators ensures positive engagement and clear ON\/OFF visibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-Circuit Simplicity:\u003c\/strong\u003e Dedicated ON\/OFF switching connects one battery bank to one load group for straightforward, fault-tolerant system operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFlexible Installation for Custom Power Systems\u003c\/h3\u003e\n\u003cp\u003eWhether you are building a custom electrical cabinet in a touring 4WD, upgrading a dual-battery system in an off-grid caravan, or refitting a marine vessel's primary power distribution panel, installation flexibility is essential. The enclosure features recessed mounting holes and a versatile housing profile that accommodates either surface mounting directly onto a flat bulkhead or flush rear-panel mounting for a clean, integrated dashboard finish.\u003c\/p\u003e\n\n\u003cp\u003eEnsure the safety of your charging system and maintain complete control over your primary DC power circuits. Add the Enerdrive 350A ON\/OFF Battery Switch with AFD to your system build today for professional-grade battery isolation.\u003c\/p\u003e","brand":"Enerdrive","offers":[{"title":"Default Title","offer_id":43631791374397,"sku":"BS-9004EB","price":123.55,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/enerdrive-350a-on-off-battery-switch-afd-bs-9004eb.png?v=1792906649","url":"https:\/\/www.solar4rvs.com.au\/products\/enerdrive-350a-on-off-battery-switch-with-alternator-field-disconnect","provider":"Solar 4 RVs","version":"1.0","type":"link"}