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

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.