{"product_id":"blue-sea-24v-500a-ml-series-solenoid-battery-isolator","title":"Blue Sea 24V 500A ML Series Solenoid Battery Isolator","description":"\u003ch2\u003eHigh-Amperage Magnetic Latching Switching for 24V DC Systems\u003c\/h2\u003e\u003cp\u003eManaging high-current 24V battery banks requires switching components that can handle substantial electrical loads without introducing parasitic drain or excessive voltage drop. The \u003cstrong\u003eBlue Sea 24V 500A ML Series Solenoid Battery Isolator\u003c\/strong\u003e is engineered for demanding marine, commercial vehicle, and off-grid power architectures. Rated for a continuous 500A current, this heavy-duty solenoid provides dependable remote switching for main engine starting circuits, large inverters, high-draw house loads, and emergency battery bank combining.\u003c\/p\u003e\u003ch3\u003eZero Standby Draw with Magnetic Latching Technology\u003c\/h3\u003e\u003cp\u003eConventional solenoids require a continuous holding current to keep contacts closed, which gradually depletes battery reserves and generates excess heat during extended operation. The ML Series resolves this issue through advanced \u003cstrong\u003emagnetic latching (bi-stable) technology\u003c\/strong\u003e. The unit draws zero current in either the ON or OFF state, only consuming a brief pulse of power when actively changing switch positions. This preserves critical battery capacity during long-term storage or extended off-grid deployments and eliminates coil burnout risks associated with continuous duty cycles.\u003c\/p\u003e\u003ch3\u003eEngineered for Harsh Environments and Live Load Switching\u003c\/h3\u003e\u003cp\u003eSwitching high-amperage live loads can rapidly degrade standard copper contacts due to electrical arcing. To mitigate this risk, the Blue Sea ML Series incorporates \u003cstrong\u003esilver alloy contacts\u003c\/strong\u003e, offering superior resistance to welding and contact pitting under load. This ensures consistent, reliable circuit isolation when you need it most.\u003c\/p\u003e\u003cp\u003eDesigned to withstand corrosive marine and mobile environments, the exterior connections feature \u003cstrong\u003e3\/8\"-16 (Approx. M10) tin-plated copper studs\u003c\/strong\u003e. Tin plating prevents oxidation while maintaining high electrical conductivity. With a 7\/8\" (22mm) stud length, the terminals easily accommodate multiple heavy-duty cable lugs, allowing for clean distribution without requiring additional busbars. Furthermore, the housing is ignition protected, making it safe for installation aboard petrol-powered vessels and in vented battery compartments.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBi-Stable Magnetic Latching:\u003c\/strong\u003e Consumes no power while maintaining an open or closed state, protecting 24V battery banks from parasitic drain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e500A Continuous Rating:\u003c\/strong\u003e Handles substantial DC loads, making it suitable for large inverter banks, bow thrusters, winches, and commercial engine circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilver Alloy Contacts:\u003c\/strong\u003e Delivers high reliability and longevity when switching live loads, reducing the risk of contact failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Terminal Studs:\u003c\/strong\u003e 3\/8\"-16 (Approx. M10) tin-plated copper studs with a 7\/8\" (22mm) length accept multiple heavy-gauge ring terminals for versatile wiring configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Protected Construction:\u003c\/strong\u003e Safe for installation in marine engine rooms and spaces containing potentially flammable vapours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Circuit Identification:\u003c\/strong\u003e Built-in recessed areas allow for clean, durable labelling of connected circuits for straightforward system maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSystem Integration and Important Exclusions\u003c\/h3\u003e\u003cp\u003eThis solenoid allows you to mount the heavy battery switch close to the battery bank to minimise heavy-gauge cable runs, while controlling the circuit remotely from a helm, dashboard, or main control panel. \u003cstrong\u003ePlease note:\u003c\/strong\u003e This specific model (BS-7703B) is supplied as the solenoid unit only. The compatible \u003cstrong\u003eML-Series Remote Control Contura Switch (Part Number 2145) is not included\u003c\/strong\u003e and must be purchased separately if required for your installation.\u003c\/p\u003e\u003ch3\u003eUpgrade Your 24V Power Distribution\u003c\/h3\u003e\u003cp\u003eEquip your marine vessel, off-grid setup, or commercial vehicle with industrial-grade circuit control. Add the Blue Sea 24V 500A ML Series Solenoid to your system for efficient, zero-drain battery management.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":43631718760509,"sku":"BS-7703B","price":379.93,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/blue-sea-24v-500a-ml-solenoid-battery-isolator-bs-7703b.png?v=1792904570","url":"https:\/\/www.solar4rvs.com.au\/products\/blue-sea-24v-500a-ml-series-solenoid-battery-isolator","provider":"Solar 4 RVs","version":"1.0","type":"link"}