Attwood Marine Battery Selector Switch, 4-Way, 6-32V, 300A/150A

Overview

The Attwood Marine 14230-3 is a 4-way battery selector switch for 6V to 32V DC systems that lets you run from battery 1, battery 2, both batteries in parallel, or switch the system fully off. It is a single-pole, triple-throw manual switch, so it fits the common job of separating a start battery from a house battery on a single-engine boat while still giving you an emergency combine position.

This switch makes sense where cable runs need to stay short and service access matters. It uses a Bakelite housing with brass terminals and brass nuts, and it has positive click positions that make it easier to confirm the selected setting at a glance.

It is a good match for center consoles, small cruisers, workboats, and sailboats that use separate start and house batteries and want direct manual control at the electrical panel or in the battery compartment.

Key features

• 4-way selector positions: battery 1, battery 2, both batteries, or off
• Works with 6V to 32V DC systems
• Single-pole, triple-throw switching for manual battery bank selection
• Built-in field circuit terminals for alternator field disconnect wiring where that setup is used
• Positive click positions help confirm switch position during normal use and troubleshooting
• Bakelite housing with brass terminals and brass nuts

Installation and setup

Mount the switch on a flat surface, high in the bilge or in another protected service area, with the shortest practical cable run to the starter and battery banks. That helps keep voltage drop under control and leaves the back of the switch easier to inspect. Use properly insulated marine cable terminals and support the cables so the terminal studs are not carrying wire strain.

This switch is fastened with three mounting screws or other suitable fasteners for the surface. If you are replacing an older switch, disconnect the positive feed at the battery before moving any cables.

Electrical and system integration

In a single-engine setup, this switch can keep one battery reserved for starting while the second battery carries house loads such as electronics, pumps, and lighting. The Both position gives you a manual parallel connection for emergency starting or backup use when one bank is low.

The selected switch position also determines which battery receives charge while the engine is running, and the 1+2 position charges both batteries. The field circuit terminals are there for alternator field disconnect wiring on systems that use that arrangement. Do not rotate the switch to Off while the engine is running.

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.