{"product_id":"sea-dog-sd-17-100a-48v-thermal-circuit-breaker","title":"Sea-Dog SD-17 100A 48V Thermal Circuit Breaker","description":"\u003cp class=\"nvn-hero\"\u003eThe Sea-Dog SD-17 is a 100-amp resettable thermal circuit breaker built for 48-volt DC systems. It's a switchable, manual-reset breaker that doubles as an on\/off switch, so you can kill a circuit by hand or let it trip on an overload. Sealed to IP67 and rated to ABYC-E11 and UL1077, it holds up to spray, weather, and the pounding a boat takes.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Sea-Dog SD-17 is a 100-amp resettable thermal circuit breaker made for the higher-current DC circuits on a boat. Rated up to 48 volts DC, it covers 12V, 24V, and 36V systems too, which makes it a solid fit for trolling motors, windlasses, bow thrusters, inverters, and big audio amps. Anywhere you're pushing real current and want protection you can reset on the spot.\u003c\/p\u003e\n\u003cp\u003eWhat sets this one apart is the switchable, manual-reset design. It's a breaker and a switch in one. Flip it to cut power to a circuit by hand, and if that circuit ever pulls more than it should, the thermal element trips and opens before your wiring gets a chance to overheat. When it trips, you just reset it. No fuses to hunt for, no spares to keep in the glovebox.\u003c\/p\u003e\n\u003cp\u003eIt's sealed to an IP67 rating, so it shrugs off spray, rain, and the odd wave over the bow. Sea-Dog also builds it to SAE J1171, the external ignition-protection standard, which means it's safe to mount in a bilge or engine space where gasoline fumes can collect. Add in ABYC-E11 and UL1077 compliance and you've got a breaker that meets the marine electrical standards a surveyor or insurer looks for.\u003c\/p\u003e\n\u003cp\u003eThe body is molded black plastic with a surface-mount footprint, so it bolts to a bulkhead, a panel, or a bracket without much fuss. Power connects through 1\/4 inch-28 stud terminals, the kind of heavy stud that takes a proper ring lug and torques down tight for a low-resistance connection under load. That matters at 100 amps, where a loose terminal turns into heat fast.\u003c\/p\u003e\n\u003cp\u003eIf you're wiring up a new house circuit or replacing a breaker that's seen too many seasons, the SD-17 is a straightforward, standards-rated choice. Mount it, land your lugs, and you're done. Ships as a single breaker.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e100-amp rating handles high-draw DC circuits like trolling motors, windlasses, and inverters\u003c\/li\u003e\n  \u003cli\u003e48-volt DC maximum rating covers 12V, 24V, and 36V systems too\u003c\/li\u003e\n  \u003cli\u003eSwitchable, manual-reset design works as both a breaker and an on\/off switch\u003c\/li\u003e\n  \u003cli\u003eIP67 sealed against dust, spray, and temporary submersion\u003c\/li\u003e\n  \u003cli\u003eBuilt to SAE J1171 for ignition protection, safe to mount in gas engine and bilge spaces\u003c\/li\u003e\n  \u003cli\u003e1\/4 inch-28 stud terminals take heavy ring lugs for a low-resistance, high-current connection\u003c\/li\u003e\n  \u003cli\u003eSurface-mount black plastic housing bolts to a bulkhead, panel, or bracket\u003c\/li\u003e\n  \u003cli\u003eMeets SAE J1625, ABYC-E11, and UL1077 marine electrical standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Sea-Dog reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat load is the SD-17 rated for?\u003c\/summary\u003e\n    \u003cp\u003eIt's a 100-amp thermal circuit breaker rated up to 48 volts DC. Size your wire gauge to the 100-amp rating and the length of your run.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use it on a 12-volt or 24-volt system?\u003c\/summary\u003e\n    \u003cp\u003eYes. The 48-volt DC rating is the maximum, so it works fine on 12V, 24V, and 36V DC circuits.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes it work as a switch too?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's a switchable, manual-reset breaker, so you can flip it by hand to cut power to a circuit, and it also trips automatically on an overload.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I reset it after it trips?\u003c\/summary\u003e\n    \u003cp\u003eIt's a manual-reset breaker. Once the fault is cleared and the breaker has cooled, flip it back to restore power.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs it safe to mount near a gas engine?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's built to SAE J1171 for external ignition protection, so it can go in engine and bilge spaces where fuel vapors may be present.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow does it mount and connect?\u003c\/summary\u003e\n    \u003cp\u003eIt's a surface-mount breaker that bolts to a flat surface. Power connects through 1\/4 inch-28 stud terminals sized for ring lugs.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs it waterproof?\u003c\/summary\u003e\n    \u003cp\u003eIt carries an IP67 rating, meaning it's dust-tight and protected against temporary immersion, so it holds up to spray and rain on deck.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eSea-Dog SD-17 100 Amp 48V DC Resettable Thermal Circuit Breaker\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSea-Dog\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e830227\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e035514830362\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eSD-17\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eAmperage\u003c\/th\u003e\n\u003ctd\u003e100 Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e48 Volt DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eReset Type\u003c\/th\u003e\n\u003ctd\u003eSwitchable \/ Manual Reset\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eTerminal\u003c\/th\u003e\n\u003ctd\u003e1\/4 Inch-28 Stud Terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eSurface Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHousing Material\u003c\/th\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eProtection Rating\u003c\/th\u003e\n\u003ctd\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eStandards\u003c\/th\u003e\n\u003ctd\u003eSAE J1625 \/ ABYC-E11 \/ UL1077 \/ SAE J1171\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003eSingle\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What load is the SD-17 rated for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a 100-amp thermal circuit breaker rated up to 48 volts DC. Size your wire gauge to the 100-amp rating and the length of your run.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I use it on a 12-volt or 24-volt system?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. The 48-volt DC rating is the maximum, so it works fine on 12V, 24V, and 36V DC circuits.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does it work as a switch too?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. 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It's built to SAE J1171 for external ignition protection, so it can go in engine and bilge spaces where fuel vapors may be present.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How does it mount and connect?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a surface-mount breaker that bolts to a flat surface. 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