{"product_id":"blue-sea-hd-series-selecteur-batterie-500a-afd","title":"Battery isolator HD-Series heavy-duty selector switch with AFD","description":"\u003cp\u003e\n    Designed for demanding marine electrical systems, the \u003cstrong\u003eHD-Series Heavy Duty Selector Battery Switch with AFD\u003c\/strong\u003e from Blue Sea Systems, part number 3003-BSS, provides robust and secure battery bank management. This model is specifically designed to operate on large diesel engines requiring high power output and low heat generation.\n\u003c\/p\u003e\n\u003ch3\u003eElectrical performance and durability\u003c\/h3\u003e\n\u003cp\u003e\n    The 3003-BSS offers high electrical specifications: a starting capacity of 1,600 amperes (30 sec), an intermittent capacity of 700 amperes (5 min), and a continuous capacity of 500 amperes. It is designed for a maximum operating voltage of 32V DC. These values clearly position it above Blue Sea Systems' m-Series (300A continuous) and e-Series (350A continuous) ranges, which are intended for outboard motors and medium-sized gasoline or diesel inboard engines. The tinned copper terminals of type M12-1.75 (1\/2\") ensure maximum conductivity and corrosion resistance. Their length of 22.22 mm (7\/8\") allows multiple cable terminals to be accommodated, with a recommended tightening torque of 24.86 N·m (220 in-lb). The selector is compatible with battery cables up to 4\/0 AWG (120 mm²).\n\u003c\/p\u003e\n\u003ch3\u003eSafety and advanced features\u003c\/h3\u003e\n\u003cp\u003e\n    The \u003cstrong\u003eHD-Series 3003-BSS battery selector\u003c\/strong\u003e integrates the Alternator Field Disconnect (AFD) function, which protects the alternator diodes in case the switch is turned off while the engine is running. Its \"Make-Before-Break\" design is essential for maintaining continuous power supply to critical systems when switching between battery banks. The housing allows for surface or rear-panel mounting. This product fully complies with ABYC standards for battery switches, is UL 1107 listed for electrical power switches, and meets external ignition protection requirements per UL 1500 and SAE J1171, making it safe for installations on gasoline-powered boats. It also features IP66 protection, ensuring resistance to dust and intense water spray. Blue Sea Systems' one-piece terminal stud design ensures a stable and durable connection, eliminating the risk of loosening over time. A tactile indicator allows the knob position to be identified by touch, useful in low-light conditions. This 4-position selector allows selection between battery 1, battery 2, or combining both (1+2) for charging or emergency starting, offering superior flexibility compared to 3-position or ON-OFF models.","brand":"Blue Sea Systems","offers":[{"title":"Default Title","offer_id":55861139669332,"sku":"3003-BSS","price":135.67,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3274\/4788\/files\/01_-_Hero_-_BLUE_SEA_HD-Series_Heavy_Duty_Selector_Battery_Switch_with_AFD_3003-BSS_-_Ref_7c8a9884.jpg?v=1779203024","url":"https:\/\/skysat.fr\/en\/products\/blue-sea-hd-series-battery-selector-500a-afd","provider":"Skysat","version":"1.0","type":"link"}