{"product_id":"hamolar-300a-manual-reset-circuit-breaker-3-pack-12-48v-inline-fuse-holder-with-wire-lugs","title":"Hamolar 300A Manual Reset Circuit Breaker 3-Pack — 12–48V Inline Fuse Holder with Wire Lugs","description":"\u003cp\u003e\u003cstrong\u003eHamolar 3 Pack 300A manual-reset circuit breakers protect 12–48V car and marine audio systems by stopping overloads and allowing quick push-button resets.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese compact, inline breaker units act as reusable fuse holders designed for automotive, marine, and RV power systems. Rated for 300 amps and compatible across 12V to 48V DC setups, each breaker uses a push-button manual reset that doubles as a kill switch. Included wire lugs and copper washers simplify installation, while the rugged operating range suits harsh environments from cold starts to hot engine bays.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this breaker safeguard my amplifier and battery?\u003c\/h3\u003e\n\u003cp\u003eThe breaker interrupts excessive current before wiring or equipment overheats, reducing the chance of damage to amplifiers, motors, and batteries. Unlike single-use fuses, it can be reset after a fault is corrected, saving replacement parts and downtime.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e300A overload protection for high-demand audio and power accessories\u003c\/li\u003e\n  \u003cli\u003eManual push-button reset instead of replacing fuses\u003c\/li\u003e\n  \u003cli\u003eHelps prevent battery damage and thermal risks from short circuits\u003c\/li\u003e\n  \u003cli\u003eCompatible with 12V through 48V DC systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere can I install these in my vehicle or boat?\u003c\/h3\u003e\n\u003cp\u003eInstall the breaker inline with the positive power feed to the device you want to protect — for example, between the battery and amplifier, winch, or trolling motor. Installation is straightforward with the provided wire lugs and copper washers, and the compact body fits tight engine compartments and distributed audio racks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuitable for car\/boat audio systems and marine amplifiers\u003c\/li\u003e\n  \u003cli\u003eWorks with RVs, trucks, buses, ATVs, and winches\u003c\/li\u003e\n  \u003cli\u003eInline placement on positive power leads for direct protection\u003c\/li\u003e\n  \u003cli\u003eDurable in temperatures from -32°C to 82°C (-25°F to 180°F)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the electrical and physical specs I need to know?\u003c\/h3\u003e\n\u003cp\u003eEach Hamolar breaker is rated for continuous 12–48V DC systems and interrupts faults up to 300 amps. The temperature tolerance and included mounting hardware mean you can use them in enclosed compartments and exposed installations without extra parts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCurrent rating: 300 amps per breaker\u003c\/li\u003e\n  \u003cli\u003eVoltage compatibility: 12V to 48V DC systems\u003c\/li\u003e\n  \u003cli\u003eOperating temperature: -32°C to 82°C (-25°F to 180°F)\u003c\/li\u003e\n  \u003cli\u003eIncludes wire lugs and copper washers for secure termination\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is troubleshooting and reset after a trip or fault?\u003c\/h3\u003e\n\u003cp\u003eThe visible push-button allows instant status checks and manual resets without tools. If the breaker trips, isolate the cause, clear the short or overload, and press the button to restore power — making it practical for field repairs on boats and remote vehicles.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVisible and accessible push-button for quick resets\u003c\/li\u003e\n  \u003cli\u003eActs as a handy kill switch when needed\u003c\/li\u003e\n  \u003cli\u003eReusable design reduces ongoing maintenance cost\u003c\/li\u003e\n  \u003cli\u003eSimple wiring reduces diagnostic complexity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Hamolar 3 Pack 300A manual reset breakers are targeted at DIY installers, car audio enthusiasts, boat owners, and fleet technicians who need reliable, serviceable overload protection. Choose this set if you want high-current protection that’s reusable, easy to mount, and fits a wide range of 12–48V DC systems — from marine amps to RV power setups.\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: Can these breakers be used with a 24V system?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Each Hamolar breaker supports 12–48V DC, so it works safely on 24V vehicle and marine systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What do I do if a breaker keeps tripping?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Check for shorts, overloaded devices, or wiring faults. Repair the cause, then press the manual reset to restore power.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Hamolar","offers":[{"title":"Default Title","offer_id":48087598465182,"sku":"B095YZN677","price":40.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/hamolar-front-view-pack-of-three.jpg?v=1785926319","url":"https:\/\/northtrailauto.ca\/products\/hamolar-300a-manual-reset-circuit-breaker-3-pack-12-48v-inline-fuse-holder-with-wire-lugs","provider":"North Trail Auto","version":"1.0","type":"link"}