Blue Sea 3000 HD-Series Single Circuit Battery Switch

Description

The Blue Sea 3000 HD-Series Single Circuit Battery Switch provides simple On/Off isolation for high-current marine battery systems. Its 600A continuous rating makes it suitable for larger engines and demanding DC systems where smaller recreational battery switches may not provide enough capacity.

Each terminal can accept two 4/0 battery cables, and the M12 tin-plated copper studs provide high conductivity and corrosion resistance. The extended stud length accommodates multiple cable terminals when the installation requires more than one connection point. Tactile textures on the knob allow the operator to identify switch position by feel alone.

The switch is ignition protected for appropriate gasoline-powered boat installations and meets ABYC requirements for marine battery switches. The housing supports both surface and rear-panel mounting and fits common Perko and Guest low-amperage battery-switch hole patterns, simplifying many replacement projects. For large single-circuit battery systems that need a rugged manual disconnect, the 3000 provides substantial current capacity and flexible mounting. Worth comparing against our other battery switches.