Blue Sea Systems MaxiBus 250A BusBar & Cover Options

The Blue Sea Systems MaxiBus 250A BusBar series provides a safe and efficient way to distribute power throughout marine, RV, automotive, and off-grid electrical systems. Designed to consolidate multiple positive or negative conductors, these heavy-duty bus bars simplify wiring installations while maintaining excellent electrical conductivity and corrosion resistance.

Constructed with tin-plated copper bus material and molded stainless steel studs, MaxiBus bus bars deliver reliable high-current performance in demanding environments. Raised bus designs provide easy access for multiple cable connections, while recessed mounting holes help prevent accidental shorts during installation.

Available in both 4-stud and 6-stud 250A bus bar configurations, along with a compatible insulating cover, these components allow you to build a professional-grade power distribution system while meeting marine electrical safety standards.

Features

• Continuous current rating of 250A
• Tin-plated copper bus for maximum conductivity
• Molded stainless steel studs for corrosion resistance
• Raised bus design for easier cable management
• Recessed mounting holes help prevent accidental shorts
• Glass-reinforced thermoplastic base
• Ideal for marine, RV, automotive, and off-grid electrical systems
• Compatible insulating cover available
• Maximum voltage: 300V AC / 48V DC

Variant Options

4 Stud BusBar (BSS-2127)

• 250A continuous rating
• Four 5/16"-18 stainless steel studs
• Compact design for smaller power distribution systems

6 Stud BusBar (BSS-2126)

• 250A continuous rating
• Six 5/16"-18 stainless steel studs
• Ideal for larger electrical installations requiring additional connection points

Insulating Cover Only (BSS-2718)

• Designed to fit Blue Sea MaxiBus models 2105 and 2126
• Polycarbonate cover with reinforced nylon components
• Helps prevent accidental contact with energized terminals
• Meets ABYC insulation requirements

Blue Sea Systems MaxiBus BusBar FAQ

What is a bus bar used for?

A bus bar provides a central connection point for multiple electrical circuits, helping organize wiring and distribute power safely throughout a boat, RV, vehicle, or off-grid system.

What is the difference between the 4-stud and 6-stud versions?

Both bus bars are rated for 250 amps. The difference is the number of connection points available. The 4-stud version offers four terminals, while the 6-stud version offers six terminals for larger electrical systems.

What does the insulating cover do?

The insulating cover helps prevent accidental contact with energized terminals and provides additional protection for electrical installations.

Can these bus bars be used in marine applications?

Yes. Blue Sea Systems bus bars are designed specifically for marine electrical systems and feature corrosion-resistant materials suitable for harsh environments.

What size studs do these bus bars use?

Both bus bar variants use 5/16"-18 stainless steel studs.

What is the maximum current rating?

Both bus bar variants are rated for 250 amps continuous current.