{"product_id":"blue-sea-systems-7189-285-series-48v-dc-150a-thermal-circuit-breaker-surface-mount-ignition-protected","title":"Blue Sea Systems 7189 285 Series 48V DC 150A Thermal Circuit Breaker — Surface Mount, Ignition-Protected","description":"\u003cp\u003e\u003cstrong\u003eBlue Sea Systems 7189 285 Series is a surface-mounted 48V DC thermal circuit breaker that combines on\/off switching with medium-duty overcurrent protection for marine and industrial electrical circuits.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis unit is designed for applications such as windlasses and electric winches where a compact, reliable protector and switch are required. It provides a visible trip indicator, ignition protection for safe placement in gasoline-engine compartments, and user-friendly terminal studs on the face for straightforward wiring. The construction resists water and accidental terminal contact, helping keep installations tidy and secure.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this breaker serve both as a switch and as circuit protection?\u003c\/h3\u003e\n\u003cp\u003eThe 7189 integrates a manually operable on\/off lever with a thermal trip mechanism. In normal use you toggle it like a switch; if sustained overload occurs the thermal element trips and locks the lever open, preventing manual defeat of the protection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eManual lever acts as a switch and trip indicator.\u003c\/li\u003e\n  \u003cli\u003eThermal element reacts to sustained overcurrent, interrupting flow.\u003c\/li\u003e\n  \u003cli\u003eTrip-free design prevents holding the breaker closed during a fault.\u003c\/li\u003e\n  \u003cli\u003eVisible lever position shows at-a-glance status.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere can I install the 7189 285 Series on a boat or vehicle?\u003c\/h3\u003e\n\u003cp\u003eThis breaker is ignition protected and water resistant, so it can be mounted in locations that see moisture and near gasoline engines when local codes allow. Surface-mount design and front-facing terminal studs make it easy to install in cramped panels or bulkhead spaces.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApproved for engine compartments on gasoline-powered boats due to ignition protection.\u003c\/li\u003e\n  \u003cli\u003eWater resistance suitable for damp marine environments.\u003c\/li\u003e\n  \u003cli\u003eSurface-mount housing for quick panel or bulkhead attachment.\u003c\/li\u003e\n  \u003cli\u003eFace-mounted studs simplify wiring access in tight spaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat electrical ratings and compatibility should I expect?\u003c\/h3\u003e\n\u003cp\u003eThis model is rated for 48V DC systems with a 150A trip point, making it suitable for medium-current circuits like windlasses and winches. It is a drop-in replacement for the legacy 185 series and matches common marine power setups.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRated 48 volts direct current (DC).\u003c\/li\u003e\n  \u003cli\u003e150 amp thermal trip capability for medium-duty loads.\u003c\/li\u003e\n  \u003cli\u003eForm factor compatible with 185 series replacements.\u003c\/li\u003e\n  \u003cli\u003eTerminal caps reduce accidental contact and cross-current shorts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the practical benefits and warranty support?\u003c\/h3\u003e\n\u003cp\u003eBeyond combined switch\/protection convenience and clear trip indication, the breaker helps prevent unsafe manual override and simplifies panel layouts by eliminating a separate switch. Blue Sea backs the product with a five-year warranty for added confidence in long-term installations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConsolidates switching and protection into one component, saving space.\u003c\/li\u003e\n  \u003cli\u003ePrevents holding closed during faults, improving safety.\u003c\/li\u003e\n  \u003cli\u003eTerminal caps and face studs streamline wiring and reduce shorts.\u003c\/li\u003e\n  \u003cli\u003eIncludes a five-year limited warranty from Blue Sea Systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Installers, boat owners and marine electricians looking for a dependable, medium-duty breaker that doubles as a switch — especially where space is limited and ignition protection is required. It's ideal for retrofitting older 185 series installations or adding a compact protection\/switch solution for equipment like windlasses, electric winches and other 48V DC loads that need visible trip indication and robust, user-friendly mounting.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the 7189 safe to mount in an engine compartment?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it is ignition protected, allowing installation in gasoline engine rooms when local regulations permit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this replace 185 series breakers?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the 7189 is a drop-in replacement for 185 series circuit breakers with matching form factor and function.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Blue Sea Systems","offers":[{"title":"Default Title","offer_id":48079810986142,"sku":"B0051OWRHE","price":79.49,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/blue-sea-systems-7189-front-panel.jpg?v=1785771396","url":"https:\/\/northtrailauto.ca\/products\/blue-sea-systems-7189-285-series-48v-dc-150a-thermal-circuit-breaker-surface-mount-ignition-protected","provider":"North Trail Auto","version":"1.0","type":"link"}