{"product_id":"t-tocas-e9-300a-manual-reset-dc-circuit-breaker-3-8-studs-ip67-weatherproof","title":"T Tocas E9 300A Manual-Reset DC Circuit Breaker 3\/8\" Studs IP67 Weatherproof","description":"\u003cp\u003e\u003cstrong\u003eThe T Tocas E9 is a 300 amp manual-reset DC circuit breaker with a switch button and 3\/8\" studs designed to protect 12–48V systems in marine, automotive, and off-grid applications.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact, serviceable circuit breaker replaces single-use fuses and delivers high interrupt capacity in a rugged, weatherproof package. Built to SAE standards and UL-rated materials, the E9 handles heavy loads like winches, inverter feeds, battery banks, and DC sound systems while offering a manual push-to-reset control for quick troubleshooting without part replacement.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this breaker protect electrical systems under heavy load?\u003c\/h3\u003e\n\u003cp\u003eThe E9 interrupts fault currents rapidly to prevent wiring or equipment damage. Its tested interrupt capacities ensure safe operation across common DC voltages so high-current faults are cleared without catastrophic failure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e300 amp continuous rating for 12–48V systems\u003c\/li\u003e\n  \u003cli\u003eInterrupt capacity: 2,500A @ 14Vdc and 1,500A @ 48Vdc\u003c\/li\u003e\n  \u003cli\u003eMeets SAE J553, J1248, J1625 standards for performance\u003c\/li\u003e\n  \u003cli\u003eManual reset button for quick reactivation after fault removal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the E9 suitable for wet or outdoor environments?\u003c\/h3\u003e\n\u003cp\u003eYes — the E9 is built with weather resistance in mind. A waterproof IP67 housing and a thermoplastic UL 94V-0 enclosure let it operate in damp or exposed installations while protecting internal components from moisture and dust.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIP67-rated sealed housing for submersion protection\u003c\/li\u003e\n  \u003cli\u003eThermal plastic UL 94V-0 for flame retardance and durability\u003c\/li\u003e\n  \u003cli\u003eOperating temperature range from -32ºC to 82ºC\u003c\/li\u003e\n  \u003cli\u003eProtective stud insulator included for safe terminal wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat mounting and wiring details should installers know?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward with the E9's extended surface mount design and standard 3\/8\"-16 studs. The studs accept heavy gauge lugs and the compact footprint fits tight spaces typical on boats, RVs, and vehicle batteries.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/8\"-16 threaded studs for common lug compatibility\u003c\/li\u003e\n  \u003cli\u003eExtended surface mount for easy panel or bulkhead attachment\u003c\/li\u003e\n  \u003cli\u003eCompact dimensions to save space in tight control areas\u003c\/li\u003e\n  \u003cli\u003eProtective stud insulator reduces risk of accidental shorting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich systems and applications benefit most from this breaker?\u003c\/h3\u003e\n\u003cp\u003eThe E9 is designed for demanding DC environments where reusable overcurrent protection and ignition safety are important. It is suitable for marine, automotive, recreational, and stationary battery systems that need a high-current, resettable protection device.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMarine: bilge pumps, house banks, and winches (meets J1171 and UL1500 ignition protection)\u003c\/li\u003e\n  \u003cli\u003eAutomotive and truck: starter circuits, auxiliary batteries, and high-current accessories\u003c\/li\u003e\n  \u003cli\u003eRV and trailer systems: inverter inputs, battery chargers, and distribution panels\u003c\/li\u003e\n  \u003cli\u003eRecreational: ATVs, UTVs, DC sound systems, and onboard electronics\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The T Tocas E9 300A manual reset breaker is for installers, boat owners, vehicle electricians, and DIY technicians who want a reliable, reusable overcurrent device with strong interrupt capability and environmental protection. Choose the E9 when you need a compact, ignition-protected breaker that simplifies troubleshooting and replacement compared with single-use fuses.\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 the E9 handle continuous 300A loads?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the E9 is rated for continuous 300A in 12–48V DC systems; ensure wiring and connectors match that rating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the breaker waterproof for marine use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the E9 has an IP67 waterproof rating and uses UL 94V-0 thermoplastic for marine and outdoor installations.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"T Tocas","offers":[{"title":"Default Title","offer_id":48083156041886,"sku":"B06Y3T3YND","price":52.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/t-tocas-e9-front-profile.jpg?v=1785826797","url":"https:\/\/northtrailauto.ca\/products\/t-tocas-e9-300a-manual-reset-dc-circuit-breaker-3-8-studs-ip67-weatherproof","provider":"North Trail Auto","version":"1.0","type":"link"}