{"product_id":"blue-sea-systems-4321-water-resistant-circuit-breaker-switch-panel-4-position-12v-socket-and-dual-usb-charger-gray","title":"Blue Sea Systems 4321 Circuit Breaker Switch Panel, 4 Position with 12V Socket and Dual USB Charger, Gray","description":"\u003cp\u003eThe Blue Sea Systems 4321 is a water-resistant circuit breaker switch panel built for boats that need reliable, protected circuit switching in a single retrofit-friendly footprint. The panel provides 4 illuminated 15A circuit breaker positions, each giving switching, ON indication, and overcurrent protection in one control, plus a built-in 12\/24V 2.1A DC USB charger for powering phones and electronics at the helm. Wiring is simple: a two-wire connection powers the entire panel, with terminals sized for #10 ring terminals that screw directly to the bus bars for a secure, corrosion-resistant connection. Each of the 4 breaker positions uses a 1\/4 inch male quick-connect terminal rated for 12V DC at up to 45A maximum operating amperage, with a ring terminal size of M5 (#10) at the bus bar. The panel surface is built from UV-stabilized, flame-retardant polycarbonate\/ABS that resists corrosion, while silicone breaker boots and a gasket seal out water; mounted with the gasket in place, the panel front carries an IP66 rating, standing up to powerful water jets. A set of 15 square format circuit labels is included and can be swapped out easily, with additional standard or custom labels available separately. The panel mounts with stainless steel #6 x 5\/8 inch screws and uses industry-standard sizing, so it drops into existing panel cutouts for straightforward retrofits. Includes the panel, 15 common labels, mounting screws, and instructions.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Blue Sea Systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 4321\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 12V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Operating Amperage:\u003c\/strong\u003e 45 Amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Positions:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Type:\u003c\/strong\u003e 1\/4 inch Male Quick Connect\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Terminal Size:\u003c\/strong\u003e M5 (#10)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Connection:\u003c\/strong\u003e Two-wire connection, requires #10 ring terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Hardware:\u003c\/strong\u003e Stainless Steel #6 x 5\/8 inch mounting screws\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Accessory:\u003c\/strong\u003e 12\/24V 2.1A DC USB Charger\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuit Labels:\u003c\/strong\u003e Set of 15 square format labels included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polycarbonate\/ABS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIngress Protection Rating:\u003c\/strong\u003e IP66 when mounted with gasket in place\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 8.5 x 5.5 x 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.15 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 632085043216\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Lifetime\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eHow many circuit breaker positions does the Blue Sea Systems 4321 have?\u003c\/strong\u003e The Blue Sea Systems 4321 has 4 circuit breaker positions, each an illuminated 15A breaker that provides switching, ON indication, and overcurrent protection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 4321 panel include a USB charger?\u003c\/strong\u003e Yes, the 4321 includes a built-in 12\/24V 2.1A DC USB charger for powering phones and other devices.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the maximum amperage rating of this panel?\u003c\/strong\u003e The panel is rated for a maximum operating amperage of 45 Amps at 12V DC.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Blue Sea Systems 4321 waterproof?\u003c\/strong\u003e It is water-resistant rather than fully waterproof: silicone breaker boots and a gasket seal the panel, and when mounted with the gasket in place the panel front carries an IP66 rating, protecting against powerful water jets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size ring terminals does the 4321 use for wiring?\u003c\/strong\u003e The 4321 uses a two-wire connection and requires #10 ring terminals, which screw to the bus bars for a secure connection; the ring terminal size at the bus bar is M5 (#10).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the panel?\u003c\/strong\u003e The Blue Sea Systems 4321 measures 8.5 x 5.5 x 4 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the panel surface made of?\u003c\/strong\u003e The panel surface is polycarbonate\/ABS that is UV-stabilized and flame retardant, and will not corrode.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat mounting hardware comes with the 4321?\u003c\/strong\u003e Stainless steel #6 x 5\/8 inch mounting screws are included with the 4321 panel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many circuit labels are included, and can they be replaced?\u003c\/strong\u003e A set of 15 square format circuit labels is included with the 4321, and they are easy to replace; additional standard or custom labels are available separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the box with the 4321?\u003c\/strong\u003e The package includes the panel, 15 common square circuit labels, stainless steel #6 x 5\/8 inch mounting screws, and instructions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 4321 fit an existing panel cutout on my boat?\u003c\/strong\u003e Yes, the Blue Sea Systems 4321 uses industry-standard panel sizing and mounting, allowing it to be retrofitted into an existing panel cutout.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 4321 switch panel?\u003c\/strong\u003e The Blue Sea Systems 4321 switch panel has a gray finish.\u003c\/p\u003e","brand":"Blue Sea Systems","offers":[{"title":"Default Title","offer_id":48989498179803,"sku":"BSS-4321","price":94.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/4321.jpg?v=1784507448","url":"https:\/\/www.goodvibesmarina.com\/products\/blue-sea-systems-4321-water-resistant-circuit-breaker-switch-panel-4-position-12v-socket-and-dual-usb-charger-gray","provider":"Good Vibes Marina","version":"1.0","type":"link"}