Blue Sea Systems AC Main + 3 Positions Circuit Breaker Panel, 120V AC, 30A Main, Digital Multimeter

Overview

The Blue Sea Systems 8405 is a 120V AC main distribution panel with one 30A double-pole main breaker, three 15A single-pole branch breakers, and an 8247 digital multi-function meter with alarm. The face size is 7.50 x 5.25 inches, which makes it a practical fit for compact AC sections on cruisers, sailboats, and refit projects where panel space is limited.

It works as a full replacement panel or as an extension to an existing 120V AC system. Hot, neutral, and safety ground buses are installed and pre-wired, and the front panel adds a reverse-polarity warning LED, backlit circuit label positions, and ON indication LEDs at each breaker position. The digital meter lets you check AC voltage, current, power, and frequency from the panel, with high and low voltage alarms plus a high current alarm.

Key features

• 120V AC panel layout with one 30A double-pole main breaker and three 15A single-pole branch breakers
• 8247 digital meter displays AC voltage, current, power, and frequency, with high and low voltage alarms plus a high current alarm
• Reverse-polarity indicator gives a clear warning when shore power wiring is not correct
• Hot, neutral, and safety ground buses are already installed and pre-wired
• Backlit label positions and ON LEDs make circuit status easier to read in low light
• Includes a 30-label basic AC panel label set for cleaner circuit identification

Installation and setup

This panel suits boats that need a straightforward 120V AC main with space for up to three 15A branch circuits. The breaker layout is well matched to common cabin and utility loads when the rest of the boat's AC design, wire size, and shore-power protection are set up correctly. Countersunk mounting holes help the panel sit cleanly in a finished electrical face.

For refits, it helps to confirm the front cutout, wire routing, and service clearance behind the mounting surface before ordering. An optional 4027 isolation cover is available for the rear of the panel and measures 5-1/4 x 7-1/2 x 3 inches.

Compatibility and fit

The 8405 is built for 120V AC installations, so it is intended for boats using North American style shore power rather than 230V AC systems. It is a good match for owners replacing an older AC panel or adding a compact sub-panel where breaker control, meter feedback, and clear circuit labeling need to stay in one small footprint.

• 1336577_qbp919649.pdf

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.