Attwood Marine Single Battery Switch, 12-50V DC, 200A Continuous, 300A Intermittent

Overview

The Attwood Marine 14233-7 is a single battery switch for 12 to 50 VDC systems that gives you a clear on and off disconnect for one battery bank. It is rated for 200 amps continuous and 300 amps intermittent load, so it fits common 12V and 24V DC setups where you want a master shutoff between the battery and the boat's main feed.

The removable control knob adds a practical layer of security when the boat is unattended, and the compact 2.17 inch body is easier to place in tighter battery compartments, consoles, or switch panels. This is a straightforward choice for boats with a simple electrical layout and one main battery circuit to isolate for storage, service, or emergency shutoff.

Key features

• Single-battery switch for 12 to 50 VDC electrical systems
• 200A continuous and 300A intermittent rating for main battery isolation
• Removable control knob for added security when leaving the boat unattended
• Flush-mount or surface-mount installation options
• Removable walls and rear-access mounting option to help with cable routing
• Ergonomic knob grip for easier operation with wet or gloved hands

Installation and setup

Installation uses four 9/64 inch mounting holes, and flush mounting also needs a 2.25 inch hole for the actuator knob. Mounting hardware is four #6 stainless screws and nuts. If the cables need to enter from the back, the switch can be mounted without the backplate.

It makes sense to place the switch where you can reach it quickly during shutdown, maintenance, or layup, while still leaving enough room for cable bends and terminal protection. Ground wires do not connect to the switch, so it is best used as a positive-side disconnect in a simple single-bank circuit.

Compatibility and fit

This switch suits boats with one starting battery or one house battery where a manual master disconnect is part of the electrical setup. It works well in straightforward systems on skiffs, runabouts, small fishing boats, and similar layouts that do not need battery-bank selection.

The compact housing and removable side walls are especially useful when panel depth is limited. For owners replacing an older single-bank battery shutoff, the combination of compact size, flush or surface mounting, and a removable knob helps keep the installation clean and easy to use.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

Deliveries are handled by preferred carriers such as USPS, UPS, FedEx, DHL, and others depending on your location and selected service. Estimated delivery times are displayed at checkout and may vary due to customs processing, carrier delays, weather, postal disruptions, or other circumstances beyond our control. Once your order ships, you'll receive a confirmation email with tracking information. Tracking may take up to 24 hours to update on the carrier's website and is also available through your account when applicable.

We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

Learn more.

Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

Learn more.

Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

Learn more.