Blue Sea Systems MiniBus Common BusBar, 100A, 300V AC, 48V DC, Tin-Plated Copper Bus

Overview

The Blue Sea Systems Common 100A Mini BusBar is a compact common busbar for organizing multiple electrical connections in tight marine electrical spaces. It is rated for 100A continuous service and supports systems up to 300V AC or 48V DC, making it useful for many boat wiring layouts where a small footprint matters.

This Mini BusBar range is commonly used to collect negative circuits, AC grounding circuits, or positive distribution points when installed with the right overcurrent protection and wiring practices for the system. The bus is made from tin-plated copper CDA 110/UNS11000, with a reinforced insulating base that suits installations inside consoles, lockers, battery compartments, and small distribution panels.

Key features

• 100A continuous rating for compact common power or grounding distribution on board.
• Voltage rating of 300V AC and 48V DC for use across a wide range of marine electrical systems.
• Tin-plated copper CDA 110/UNS11000 bus supports good conductivity while adding corrosion resistance for marine environments.
• Mini format works well where standard busbars take up too much room behind panels, under helm stations, or near batteries.
• Available in 4-gang and 5-gang layouts, with covered and uncovered versions to match the protection and access needs of the installation.
• Terminal hardware varies by configuration, including #10-32 studs on 4-gang models and #10-32 studs with #8-32 screw terminals on 5-gang models.

Variants

The product is offered in four configurations that change the number of connection points and whether a clear protective cover is included.

The 4-gang versions use #10-32 terminal studs, while the 5-gang versions add #8-32 screw terminals along with #10-32 studs. The 100A continuous rating and 300V AC or 48V DC maximum voltage apply across the range.

• 2315, 4 Gang, With Cover. This version suits small distribution areas where four stud connections are enough and covered terminals are preferred for added protection inside the installation space.
• 2314, 5 Gang, With Cover. This version adds more branch connection points and includes a clear cover, which helps keep the wiring area protected while still allowing visual inspection.
• 2305, 4 Gang, Without Cover. This version keeps the 4-gang stud layout open for installations where the busbar is already protected inside an enclosure or panel.
• 2304, 5 Gang, Without Cover. This version provides the 5-gang layout without the cover for compact panels or enclosed locations where quick terminal access is more important.

Installation and setup

Mount the busbar on a dry, accessible surface with enough clearance for ring terminals, cable bends, and future service work. Because this is a common busbar and not a circuit protection device, positive distribution circuits still need proper fusing or breakers sized for the connected conductors and loads.

For clean wiring, group circuits by function and keep cable runs supported so vibration is not carried by the terminals. Covered versions are a better match for areas where accidental contact with terminals is a concern, while uncovered versions fit well inside protected electrical enclosures.

Compatibility and fit

This busbar is a good match for boat owners, installers, and refit projects that need a compact way to tidy several common connections without moving to a larger distribution block. It is especially useful behind helm panels, near switch panels, in electronics lockers, or in small service areas where space is limited and the wiring still needs to remain easy to trace.

Before installation, confirm the selected gang count, cover style, terminal size, voltage, and 100A rating against the vessel wiring plan. The final installation should follow marine wiring practice for conductor sizing, terminal torque, strain relief, and circuit protection.

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.