Blue Sea Systems AC Main Circuit Breaker Panel, 120V AC, 11 Positions
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Overview
The Blue Sea Systems 8485 is a 120V AC breaker panel built for 30A service, with an AC main and 11 circuit positions for shore power distribution on board. It comes pre-wired with hot, neutral, and safety ground buses, and it includes one 30A double-pole main breaker plus eight 15A single-pole branch breakers installed.
At 5.25 x 11.25 inches, this panel fits a narrow vertical mounting space while still giving you room to organize several AC loads from one location. Reverse polarity indication and circuit ON LEDs make it easier to verify shore power wiring and check circuit status when you are tracing power at the dock or working through a service issue on board.
The panel face is built from 1/8 inch 5052-H32 aluminum with chemical treatment per Mil Spec C-5541C and a textured two-part polyurethane finish. That construction works well in enclosed helm, cabin, or service spaces where salt air, vibration, and routine use can wear out lighter panels.
Key features
- Nominal 120V AC panel rated for 30A service
- One 30A double-pole main breaker and eight 15A single-pole branch breakers installed
- Hot, neutral, and safety ground buses are already installed and pre-wired
- Red reverse polarity LED plus ON indication at each circuit position
- Backlit label positions with 30 common large-format circuit labels included
- 1/8 inch 5052-H32 aluminum panel with chemically treated substrate and textured polyurethane finish
- Countersunk mounting holes, installation instructions, and cutout template included
Installation and setup
This panel fits boats running a 120V, 30A shore power system and needing a clean way to split that feed across cabin, galley, charger, outlet, or utility circuits. If it is being used as the main shore power disconnect, it needs to be mounted within 10 feet of the shore power inlet, measured along the conductors, unless additional overcurrent protection is added within that distance.
The label backlighting runs on DC, so it needs a separate DC positive feed and DC ground during installation. Branch breaker size should always match the wire and the actual load on each circuit. The panel ships with 15A branch breakers because that covers many common AC circuits on board, but they can be changed where the circuit design calls for a different rating.
Compatibility and fit
The overall panel size is 5-1/4 x 11-1/4 inches, with mounting centers at 4-7/16 x 10-7/16 inches. That makes it useful where you need a tall, narrow panel rather than a wide distribution board. It can work as an extension to an existing AC panel or as a full replacement in a 120V AC system with the right feeder protection and wiring layout.
This panel should be mounted where both the front and back stay protected from water. It is not for gasoline engine rooms, battery compartments, or other spaces where flammable vapors can collect, because the breakers are not ignition protected.
Use on board
This panel suits boats that need a straightforward AC distribution setup without giving up a lot of dashboard or bulkhead space. It works well on cruisers, sportfishing boats, and sailboats that bring in 30A shore power and need one main disconnect with room for several AC branch circuits.
Shipping
We ship worldwide from the United States. Rates are calculated at checkout based on destination and package weight. Some items include free shipping, which will show automatically. Not every product is eligible for international shipping; checkout will confirm eligibility. We do not ship to PO Boxes except through USPS, and not all packages qualify.
Processing and dispatch
Most orders are verified, packed, and handed to the carrier within 1 to 2 business days. Some products may need extra handling time or ship directly from the manufacturer. For certain international orders, inventory transfers between warehouses may add time. If any delay is expected, we will let you know the dispatch date.
Delivery and tracking
Deliveries are handled by trusted carriers such as USPS, UPS, FedEx, and DHL. Estimated arrival times appear at checkout and depend on your location and the service you choose. These are estimates and can be affected by customs or carrier disruptions. A shipping confirmation with a tracking link is emailed when your order ships, and tracking may take up to 24 hours to update. You can also view tracking in your account.
Duties, taxes, and support
International customers are responsible for any customs duties, taxes, and fees charged by the destination country. If these charges are refused and a shipment returns to us, the carrier’s return cost and any re-entry customs fees will be deducted from the refund. If your order is late or you need help, contact cs@qualityboatparts.com and we will assist you.
Quality Boat Parts is a reseller. Many items include a manufacturer’s warranty, and all warranty service is handled directly by the manufacturer. We do not manage or administer warranty claims on behalf of customers.
Warranty terms, coverage, and duration are set by each manufacturer. Issues involving defects, repairs, or replacements must be addressed with the manufacturer’s support team. When available, the warranty period is listed on the product page. If it is not shown, contact us or the manufacturer for details before purchasing.
To start a claim, the customer must contact the manufacturer and follow their process. Keep your proof of purchase and original packaging, and register the product if the manufacturer requires it, as these are often needed for warranty service.
We are happy to help you find the right contact or documentation, but we cannot decide outcomes or intervene in claim resolutions. For guidance, email cs@qualityboatparts.com.