Blue Sea Systems DualBus Plus 150A BusBar, 5 Gang, #10-32 Screw Terminals

Overview

The Blue Sea Systems DualBus Plus is a dual busbar that combines positive and negative distribution on one block, giving small marine electrical upgrades a cleaner termination point without adding separate busbars. It is rated for 150A DC and 130A AC, with maximum voltage ratings of 48V DC and 300V AC.

Each bus has five #10-32 screw terminals and two terminal studs, so it works well as a central connection point for electronics, lighting, pumps, stereo equipment, and other branch circuits where positive and negative wiring need to stay organized. A clear polycarbonate snap-on cover helps protect the terminals and meets USCG and ABYC insulation requirements.

Key features

• Combines positive and negative buses on one block to reduce wiring clutter in compact marine electrical panels.
• Five #10-32 screw terminals per bus give multiple branch circuits a tidy termination point.
• Two terminal studs per bus support larger feed or return connections, with stud size depending on the selected variant.
• 150A DC continuous rating supports common accessory distribution layouts on 12V and 24V boats, within the 48V DC maximum rating.
• Tin-plated copper bus material helps maintain good conductivity in damp marine environments.
• UL 94-V0 rated glass-reinforced thermoplastic base adds insulation and structure for onboard electrical installations.
• Clear polycarbonate cover snaps over the block and meets USCG and ABYC insulation requirements.

Variants

This product is offered in two stud configurations for matching the main cable lugs and hardware used in the boat’s electrical system.

The screw-terminal layout, bus function, 150A DC rating, 48V DC maximum rating, clear cover, and five-terminal-per-bus arrangement remain the same across these configurations.

• 2723: 5/16 in-18 stud version. This configuration suits installations where the main positive and negative cable lugs are sized for 5/16 in studs.
• 2722: 1/4 in-20 stud version. This configuration suits installations where the main positive and negative cable lugs are sized for 1/4 in studs.

Installation and setup

Mount the block in a dry, accessible electrical area such as behind a distribution panel, inside a console, or near a battery switch and accessory fuse block. The base uses #10 or M5 mounting screws, and the cover should remain accessible so connections can be inspected without disturbing the wiring layout.

Use properly crimped marine terminals, match lug size to the selected stud version, and torque the screw terminals and studs to the specified values for the variant being installed. This helps avoid loose connections caused by vibration and repeated heating and cooling cycles on board.

Compatibility and fit

The DualBus Plus is a good match for boats that need a compact positive and negative distribution point for electronics and accessory wiring. It is useful during refits or add-ons where new equipment such as chartplotters, radios, pumps, lighting circuits, or USB chargers needs a cleaner connection point than stacking conductors on one battery or switch terminal.

Because the main difference between the variants is stud size, the key fit check is the terminal lug hardware already planned for the main feed and return cables. The 2723 uses 5/16 in-18 studs, while the 2722 uses 1/4 in-20 studs.

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.

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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.

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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.

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