{"product_id":"r2x-racing-battery-bulkhead-connector-3-8-post-black-red-440a-weatherproof-pass-through","title":"R2X Racing Battery Bulkhead Connector 3\/8\" Post Black \u0026 Red — 440A Weatherproof Pass-Through","description":"\u003cp\u003e\u003cstrong\u003eR2X Racing's heavy-duty bulkhead connector is a weatherproof 12V pass-through terminal with a 3\/8\" nickel-plated post, reinforced silicone gasket, and insulated boot—rated for continuous 440A and short-term 550A use.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis bulkhead connector is built to move large currents through panels and bulkheads without sacrificing corrosion resistance or sealing. Designed for marine, solar, and car audio installations, it combines a copper-core conductor and nickel-plated 3\/8\" post with a glass-filled nylon body and fiberglass-reinforced silicone gasket to keep moisture and debris out. The connector meets common industry safety expectations and is manufactured in the United States.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this connector keep water and dust out of my electrical panel?\u003c\/h3\u003e\n\u003cp\u003eThe unit uses a reinforced silicone flange gasket and an IP65-rated insulator boot to prevent water spray and dust from reaching the terminal area. Screws or bolts through the flange and a threaded hex nut on the back side create a secure mechanical seal, minimizing movement that can break the weather barrier.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIP65-rated insulator boot resists water spray and dust ingress\u003c\/li\u003e\n  \u003cli\u003eFiberglass-reinforced silicone gasket seals flange to panels up to 13\/32\" (0.40\") thick\u003c\/li\u003e\n  \u003cli\u003eFour flange holes allow additional mechanical fastening to prevent rotation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan this connector handle high current for my battery or audio system?\u003c\/h3\u003e\n\u003cp\u003eYes — the solid copper core and nickel-plated steel post are sized for heavy-duty current transfer. The connector is continuously rated at 440 amps at 12V and can carry up to 550 amps for short intervals (up to 12 minutes at an 80% duty cycle). Its construction tolerates higher torque during installation without the failure modes common to softer metal shafts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eContinuous rating: 440A at 12VDC\u003c\/li\u003e\n  \u003cli\u003ePeak short-term rating: 550A (up to 12 minutes, 80% duty cycle)\u003c\/li\u003e\n  \u003cli\u003eMax voltage rating: 48VDC for broader system compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this be easy to install and secure in my panel or hull?\u003c\/h3\u003e\n\u003cp\u003eInstallation is simple: drill a 1.375\" hole, feed the connector through, and tighten the large hex nut on the rear. The flange’s four holes accept screws or bolts to fix the connector in place and stop rotation when attaching heavy-gauge cable. The reinforced gasket keeps the interface sealed even when mounting to uneven surfaces.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRequires 1.375\" panel hole for pass-through\u003c\/li\u003e\n  \u003cli\u003eLarge hex nut secures connection from the backside\u003c\/li\u003e\n  \u003cli\u003eFour flange mounting holes for added mechanical stability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and standards are used in the connector?\u003c\/h3\u003e\n\u003cp\u003eThe connector body is molded from glass-filled nylon for strength and heat resistance, while the electrical path uses a copper core with a nickel-plated 3\/8\" post for corrosion resistance. The gasket is fiberglass-reinforced silicone and the insulator boot meets IP65 weatherproofing and common USCG\/ISO\/ABYC expectations for exposed, energized terminals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGlass-filled nylon body for structural durability\u003c\/li\u003e\n  \u003cli\u003eSolid copper core with nickel-plated steel post for high torque and corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eFiberglass-reinforced silicone gasket and IP65-rated boot for environmental protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: installers, boat owners, solar technicians, and car audio enthusiasts who need a rugged, weatherproof battery pass-through terminal that carries heavy current and resists corrosion. If you require a reliable feed-through that can be bolted to a panel or bulkhead, survive marine environments, and accept high-torque terminations while remaining Made in the USA, this connector is a practical choice.\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: What hole size do I need to mount this connector?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Drill a 1.375\" (approx. 35 mm) hole for the connector pass-through; use the hex nut and flange screws to secure it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this suitable for marine installations?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It has an IP65-rated boot and reinforced silicone gasket designed to resist spray and corrosion in marine settings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"R2X Racing","offers":[{"title":"Default Title","offer_id":48084045922462,"sku":"B09B1487ND","price":76.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/r2x-racing-front-flange-view.jpg?v=1785844624","url":"https:\/\/northtrailauto.ca\/products\/r2x-racing-battery-bulkhead-connector-3-8-post-black-red-440a-weatherproof-pass-through","provider":"North Trail Auto","version":"1.0","type":"link"}