{"product_id":"blue-sea-systems-5140-maxi-fuse-50a-water-resistant-blade-fuse-for-marine-32v-dc-circuits","title":"Blue Sea Systems 5140 50A MAXI Fuse for Marine and Automotive Circuits","description":"\u003cp\u003eThe Blue Sea Systems 5140 is a 50 amp MAXI-size blade fuse built for protecting high-current marine and automotive electrical circuits. MAXI fuses are the larger-format blade fuse used where continuous current draw exceeds what a standard ATO\/ATC blade fuse can safely handle, making this size common in battery switch panels, bilge pump feeds, windlass circuits, and other heavy-load 12-32 volt DC wiring. The fuse blades are tin-plated to resist the corrosion that saltwater and humid engine-room environments cause on bare metal contacts, helping maintain a solid electrical connection over time. A visible indicator window on the fuse body shows at a glance whether the fuse has blown, so troubleshooting a dead circuit does not require pulling the fuse to inspect it. The housing is molded plastic and the fuse is rated for 32 volts DC, with a 50 amp continuous current rating. This fuse is sold individually, one per package, and installs into any standard MAXI-size fuse holder or fuse block. It is part of Blue Sea Systems' MAXI fuse lineup, which also includes 40A, 60A, 70A, and 80A versions for matching the fuse to the specific circuit load.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Blue Sea Systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 5140\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e 50 Amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 32 Volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Surface Mount (blade style)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Beige\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 9 x 8 x 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 fuse per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 632085051402\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat amperage is the Blue Sea Systems 5140 fuse rated for?\u003c\/strong\u003e The 5140 is rated for 50 amps continuous current at 32 volts DC, making it suited to high-current marine and automotive circuits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size fuse holder does the 5140 fit?\u003c\/strong\u003e This is a MAXI-size blade fuse, so it installs into any standard MAXI fuse holder or MAXI fuse block, not a smaller ATO\/ATC-style holder.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow can I tell if the 5140 fuse has blown?\u003c\/strong\u003e The 5140 has a visible indicator window on the fuse body that shows a blown condition, so you can identify a tripped fuse without removing it to test it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 5140 fuse corrosion-resistant?\u003c\/strong\u003e Yes, the connector blades on the Blue Sea Systems 5140 are tin-plated, which resists the corrosion that saltwater and humid conditions cause on bare metal fuse blades.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 5140 fuse made of?\u003c\/strong\u003e The 5140 has a molded plastic housing in beige, with tin-plated metal blade connectors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many fuses come in a package?\u003c\/strong\u003e The Blue Sea Systems 5140 is sold individually, one 50A MAXI fuse per package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat voltage is the 5140 fuse rated for?\u003c\/strong\u003e It carries a 32 volt DC rating, consistent with standard marine and automotive low-voltage electrical systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 5140 fuse weigh?\u003c\/strong\u003e The Blue Sea Systems 5140 weighs 0.04 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat other amperages are available in this fuse series?\u003c\/strong\u003e Blue Sea Systems offers the same MAXI fuse body in 40A (part 5139), 50A (part 5140), 60A (part 5141), 70A (part 5142), and 80A (part 5143), so you can match the fuse to your circuit's load.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 5140 be used in automotive as well as marine wiring?\u003c\/strong\u003e Yes, the 50A MAXI fuse format used by the 5140 is common to both marine and automotive high-current circuits.\u003c\/p\u003e","brand":"Blue Sea Systems","offers":[{"title":"Default Title","offer_id":48989503062235,"sku":"BSS-5140","price":5.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/5140.jpg?v=1784507525","url":"https:\/\/www.goodvibesmarina.com\/products\/blue-sea-systems-5140-maxi-fuse-50a-water-resistant-blade-fuse-for-marine-32v-dc-circuits","provider":"Good Vibes Marina","version":"1.0","type":"link"}