Busbars
Busbars give you a clean, common connection point for multiple positive or negative conductors instead of stacking many ring terminals on a battery post. They make systems easier to wire, trace and expand.
Pick a busbar rated for the total current it will carry and with enough studs and screw terminals for your circuits. Insulating covers help prevent accidental shorts.
Browse 187 busbars products in Electrical, 163 in stock and ready to ship from NJ and FL. Top brands include Blue Sea Systems, Bluewater, BEP Marine and Victron Energy. Prices range from $1.26 to $237.86. Filter by brand, price or availability, or search by manufacturer part number or UPC.
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Busbars FAQ
Why use a busbar instead of the battery terminal?
Stacking many lugs on a battery post leads to poor connections. A busbar spreads connections out, keeps them tight and makes troubleshooting simpler.
How do I size a busbar?
Choose a continuous rating at least equal to the total current flowing through it, and check stud sizes match your cable lugs.
Do I need separate positive and negative busbars?
Yes. Many systems use a fused positive distribution block and a separate negative busbar, often with a battery monitor shunt between the negative bus and the battery.
Should busbars be covered?
Covers are recommended, especially on positive busbars, to prevent tools or loose items from causing a short.