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Blue Sea Systems 2128 MaxiBus 250A BusBar - 6 Terminal Marine Power Distribution

Manufacturer

Blue Sea Systems

<p>When electrical reliability can mean the difference between a successful voyage and a dangerous situation, marine professionals and enthusiasts turn to Blue Sea Systems. Founded in 1992, this American manufacturer has built a reputation for creating electrical components specifically engineered to withstand the unforgiving marine environment. Every product reflects a commitment to safety standards and real-world performance that has made Blue Sea Systems a leading name in marine and specialty vehicle electrical systems.</p> <h3>Engineering for the Marine Environment</h3> <p>Blue Sea Systems develops and manufactures dependable AC and DC electrical products for marine and specialized vehicle applications, designed in the USA and engineered to excel in challenging environments. The marine environment presents unique challenges—salt spray, constant vibration, temperature extremes, and moisture exposure—that can quickly degrade inferior electrical components. Blue Sea Systems addresses these challenges through careful material selection, rigorous testing protocols, and designs that prioritize both safety and serviceability. Their components are engineered for marine use and align with the intent of ABYC E-11: AC and DC Electrical Systems on Boats and relevant USCG electrical regulations.</p> <h3>Commitment to Safety Standards</h3> <p>Safety standards aren't just guidelines for Blue Sea Systems—they're fundamental to every product design. All Blue Sea Systems marine battery disconnect switches comply with the ABYC C-7 certification, demonstrating their commitment to meeting and exceeding industry safety requirements. The company maintains ABYC-certified employees across multiple departments, from engineering to technical support, ensuring deep expertise in marine electrical system design and installation standards.</p> <h3>Comprehensive Product Range</h3> <p>Blue Sea Systems offers an extensive catalog designed to address every aspect of marine electrical systems. Their <a href="/7262-blue-sea-systems-circuit-breakers-200260">circuit breakers</a> provide resettable overcurrent protection with trip-free designs and clear trip indication for quick diagnostics. For power management, their <a href="/7262-blue-sea-systems-battery-switches-manual-200149">battery switches</a> offer reliable methods for controlling battery banks and disconnecting loads during storage or emergencies, with ABYC C-7 compliance guaranteed.</p> <p>Monitoring system health is critical aboard any vessel, which is why their <a href="/7262-blue-sea-systems-battery-monitors-volt-meters-200146">battery monitors and volt meters</a> provide accurate real-time data to help operators make informed decisions about power usage and charging. The company's <a href="/7262-blue-sea-systems-terminal-blocks-bus-bars-201059">terminal blocks and bus bars</a> create organized, serviceable connection points that simplify installation and future modifications. For keeping batteries properly charged, Blue Sea Systems offers <a href="/7262-blue-sea-systems-battery-chargers-200141">battery chargers</a> engineered with features like automatic charging relay compatibility and proper charge profile management.</p> <h3>Built by Boaters, for Boaters</h3> <p>Blue Sea Systems was founded based on a commitment to create innovative high quality marine electrical products to improve the safety, simplicity, and reliability of boating, with employees who are active boaters applying their passion to designing, developing, and building products. This firsthand experience translates into practical features like modular layouts, standardized footprints, and installer-centric designs that streamline panel work and serviceability. The result is a product line that addresses real challenges faced on the water, backed by comprehensive technical documentation and support resources that help both professionals and DIY enthusiasts complete installations with confidence.</p>

Part Number

2128
06/01/2036 9:12 AM
Sale Price

$31.62

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Blue Sea Systems 2128 MaxiBus is a professional-grade 250-amp bus bar designed to organize and distribute AC or DC power in marine electrical systems. Whether installed behind a breaker panel or in the engine room, this bus bar transforms complex wiring into a clean, organized, and easily serviceable system.

This versatile bus bar excels at collecting negative or AC ground circuits, as well as distributing positive power to multiple loads such as navigation lights, cabin lighting, and other electrical accessories. The design also facilitates quick wire connection and disconnection—ideal for applications like un-stepping masts on sailboats.

Key Features:

  • 250-amp continuous DC rating with 48V DC and 300V AC maximum voltage capability
  • Six #10-24 stainless steel terminal screws engineered for high torque loads to minimize connection resistance
  • Two 5/16"-18 power input studs for main power feeds
  • Tin-plated copper bus bar (CDA 110/UNS C11000) for superior conductivity and corrosion resistance
  • Reinforced heat-resistant polycarbonate base material provides durability in harsh marine environments
  • Compatible with snap-on insulation cover (sold separately) for ABYC-compliant installations
  • Backed by Blue Sea Systems lifetime warranty

Specifications:

  • Maximum Voltage AC: 300V
  • Maximum Voltage DC: 48V
  • Continuous Rating DC: 250A
  • Terminals: (6) #10-24 screws, (2) 5/16"-18 studs
  • Base Material: Reinforced polycarbonate
  • Bus Material: Tin-plated copper CDA 110/UNS C11000
  • Dimensions: 5.875" L × 1.5" W × 1.875" H

This industry-standard bus bar is sized to handle demanding current loads while providing room for future system expansion.

Products specifications

Capacity

250 Amps at 300 Volts AC

Dimensions

1 1/2" Width x 1 11/16" Height x 5 7/8" Length

Mounting Hardware

Mounting Screws (Sold Separately)

Type

Bus Bars

Warranty Details

Lifetime

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