{"product_id":"blue-sea-st-blade-12-circuit-split-bus-fuse-block-with-negative-bus-and-cover","title":"Blue Sea ST Blade 12 Circuit Split Bus Fuse Block with Negative Bus and Cover","description":"\u003ch2\u003eCentralised Dual-Group Circuit Protection for 12V and 24V DC Systems\u003c\/h2\u003e\n\u003cp\u003eManaging complex electrical systems in marine, RV, and off-grid applications often requires separating circuits that need continuous power from those controlled by a master switch. The \u003cstrong\u003eST Blade Split Bus Fuse Block\u003c\/strong\u003e provides a streamlined, professional solution by integrating two isolated groups of six standard ATO\/ATC blade fuse circuits into a single, compact footprint. This eliminates the need to install and wire two separate fuse blocks, saving valuable mounting space and simplifying your wiring harness.\u003c\/p\u003e\n\u003cp\u003eRated for systems up to 32V DC, this 12-circuit distribution block is ideal for both 12V and 24V electrical setups. It allows you to run a mix of 24-hour constant power circuits (such as bilge pumps, security systems, or fridge power) alongside switched accessories (like lighting, navigation equipment, and water pumps) from a single battery. Alternatively, the isolated positive buses can be fed by two separate battery banks, while sharing a common integrated negative busbar to streamline ground returns.\u003c\/p\u003e\n\n\u003ch3\u003eEngineered for Harsh Marine and Automotive Environments\u003c\/h3\u003e\n\u003cp\u003eInferior distribution blocks often suffer from voltage drop, corrosion, and loose connections caused by constant vibration in mobile and marine applications. This unit is built with marine-grade materials to mitigate electrical faults and ensure long-term reliability:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Isolated Positive Buses:\u003c\/strong\u003e Two independent groups of 6 circuits allow seamless management of switched and unswitched loads, or dual battery feeds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Conductivity Construction:\u003c\/strong\u003e Tin-plated copper buses and fuse clips provide superior corrosion resistance and minimal resistance, supporting up to 30A per circuit and 100A total block capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration-Resistant Terminations:\u003c\/strong\u003e #8-32 (approx. M4) screw terminals with captive star lockwashers securely hold ring terminals in place, while one-piece stainless steel flange nuts on the #10-32 (approx. M5) studs ensure safe power and ground connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliant Safety Cover:\u003c\/strong\u003e The clear insulating cover satisfies ABYC and USCG insulation requirements, featuring an easy-to-open push-button latch, label recesses for clear circuit identification, and onboard storage for two spare fuses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Negative Bus:\u003c\/strong\u003e Consolidates ground wires into one convenient location, reducing wiring clutter behind the dash or inside electrical cabinets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePractical Installation and System Integration\u003c\/h3\u003e\n\u003cp\u003eDesigned for straightforward installation in canopies, caravans, 4WDs, and boats, the block mounts easily using #8 (M4) screws. The use of screw terminals rather than push-on spade connectors ensures that your circuit wiring remains firmly attached even over corrugated roads or rough seas. Please note that ATO\/ATC blade fuses and circuit identification labels are sold separately, allowing you to customise the exact amperage ratings and labelling for your specific load requirements.\u003c\/p\u003e\n\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/enerdrive.com.au\/wp-content\/uploads\/2015\/09\/5032.jpg\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDimensioned Drawing\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/enerdrive.com.au\/wp-content\/uploads\/2018\/12\/Split-Bus-Fuse-Block.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eSplit Bus Fuse Block information sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUpgrade Your DC Power Distribution\u003c\/h3\u003e\n\u003cp\u003eOrganise and protect your dual-circuit 12V or 24V setup with a single, marine-grade distribution hub. Add the ST Blade Split Bus Fuse Block to your system today for cleaner wiring and dependable circuit protection.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":43629733249085,"sku":"BS-5032B","price":128.7,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/enerdrive-c32f09ad1173aae1c43d342b1d41b31645d7034cdb5c5cc5fa207a14fe64434b.jpg?v=1789552948","url":"https:\/\/www.solar4rvs.com.au\/products\/blue-sea-st-blade-12-circuit-split-bus-fuse-block-with-negative-bus-and-cover","provider":"Solar 4 RVs","version":"1.0","type":"link"}