Blue Sea Systems MiniBus Common Grounding BusBar, 100A, 6-Gang, 48V DC

Overview

The Blue Sea Systems 2306 is a 6-gang grounding busbar for DC systems up to 48V, with a 100A continuous rating and #8-32 screw terminals. It gives you one common point to land multiple negative or grounding conductors when space behind the panel is tight.

The tin-plated copper bus helps keep connections orderly in areas that see moisture, vibration, and routine service access. This format works well in electronics cabinets, under dashboards, and other small DC distribution areas where stacking ring terminals on a battery post or improvised stud quickly gets messy.

On board, this part fits jobs such as consolidating returns from instruments, lighting, pumps, and other accessories, as long as the combined load stays within the busbar rating. It is a grounding busbar for DC circuits, so it belongs on the negative or ground side of the system rather than in a fused positive feed.

Key features

• 100A continuous DC rating for shared negative or grounding circuits
• Maximum system voltage of 48V DC, which suits common 12V and 24V marine electrical systems
• Six #8-32 screw terminals for terminating multiple conductors on one common bus
• Tin-plated copper bus for good conductivity and better resistance to corrosion in marine service
• Compact layout that fits limited-space installations behind panels, in electronics lockers, and under the helm
• 15 in-lb terminal torque specification for consistent installation at each connection point

Installation and fit

This busbar is a good match when you need a clean landing point for several small to mid-size DC return wires in one area. The #8-32 screw terminals make it straightforward to organize ring-terminal connections by circuit, which helps later when you are tracing faults, adding accessories, or reworking a helm panel.

It also suits refits where the original negative wiring has grown over time and needs to be brought back into a single, serviceable location. On a center console, sailboat, or cruising boat, that usually means behind the switch panel, inside an electronics box, or close to a small accessory distribution point.

Electrical and system integration

Because this is a common grounding busbar, it is most useful in low-voltage DC systems where several branch circuits need to share a common negative return. It helps separate cable management from the battery terminal area and keeps the wiring run more deliberate around navigation electronics and house loads.

This part is a sensible fit for owners and installers who want a compact grounding point for accessory circuits without moving up to a larger busbar. It makes the most sense where space is limited, the wiring count is growing, and a tidy negative distribution point matters for service and troubleshooting.

Shipping
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Duties, taxes, and support
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