Victron Energy Busbar with Cover, 250A, 70VDC, 5/16 in Terminals

Overview

The Victron Energy Busbar 250 A with Cover is a DC distribution busbar for bringing battery cables and DC equipment feeds together at one clean connection point. It is rated for 250 A and up to 70 VDC, making it suitable for many 12V, 24V, and 48V onboard DC systems when the rest of the installation is sized correctly.

This busbar helps reduce stacked cable lugs on battery posts and keeps high-current wiring easier to inspect in a battery compartment, electrical locker, helm console, or equipment panel. The 5/16 inch / 8 mm terminals work with correctly sized ring terminals, while the removable ABS cover helps shield the live bus area after installation.

Key features

• 250 A maximum current rating for high-current DC distribution on board.
• 70 VDC maximum voltage rating for common low-voltage marine electrical systems.
• 5/16 inch / 8 mm terminal diameter for use with matching ring terminals.
• Tin-plated copper busbar strip helps maintain good conductivity in demanding electrical installations.
• Stainless steel terminals and tin-plated copper hex nuts support secure cable connections.
• Removable ABS protection cover helps reduce accidental contact with the energized busbar.
• Recommended torque is 110 lbf inch / 13 N m, which gives installers a clear target for terminal tightening.
• With-cover dimensions are 1.9 x 9.4 x 2.8 inch / 48 x 237 x 70 mm for both connection versions.

Variants

This product is offered in two connection layouts so the busbar can match the number of cable landings needed in the DC system.

The 4P and 6P versions share the same 250 A current rating, 70 VDC voltage rating, terminal size, busbar strip material, base material, cover material, and overall with-cover dimensions. The main difference is the number of terminal connection points available on the bar.

• VBB125040010: Connections 4P. The four-terminal layout suits a smaller distribution point where fewer battery or DC equipment cables need to land on the same common bar.
• VBB125060020: Connections 6P. The six-terminal layout adds two more high-current connection points for systems with more cable runs to combine at one busbar.

Installation and setup

Mount the busbar on a firm, heat-resistant surface with enough clearance for cable bend radius, terminal access, and cover removal. In a boat installation, it should be placed where it stays protected from direct spray, loose gear, and unnecessary mechanical strain on the cables.

Use properly crimped ring terminals that match the cable size and the 5/16 inch / 8 mm studs. After the cables are landed and torqued, refit the cover so the energized connections are less exposed during normal service and inspection.

Compatibility and fit

This busbar is a practical match for battery banks, inverter and charger feeds, DC distribution panels, and other high-current DC circuits where several cables need a common positive or negative connection point. It does not replace circuit protection, switching, or correct cable sizing, so fuses, breakers, disconnects, and cable gauges should be selected for the full system load and installation standard.