Blue Sea 3001 HD-Series Single Circuit Battery Switch

The Blue Sea 3001 HD-Series Battery Switch is a single-circuit ON/OFF battery switch rated 600A continuous, with an alternator field disconnect built in. It is designed for boaters who need simple, heavy-duty on/off battery isolation rather than a multi-bank selector.

Each terminal accepts two 4/0 AWG battery cables, giving it more cable capacity than Blue Sea's selector switches, and 1/2-inch tin-plated copper studs with 0.870-inch length provide a secure, corrosion-resistant connection. It's ignition protected for safe installation aboard gasoline-powered boats and fits all Perko and Guest low amperage battery switch hole patterns. Browse more options in our panels, switches, and circuit breakers category.

Key Features

• single circuit ON/OFF operation with alternator field disconnect
• accepts two 4/0 cables per terminal
• fits Perko/Guest hole patterns
• ignition protected
• surface or rear panel mounting

Frequently Asked Questions

Is this a selector switch or a simple on/off switch? It's a single circuit ON/OFF switch, not a multi-bank selector.

What's the continuous amperage rating? 600A, higher than Blue Sea's selector switches.

How many cables does each terminal accept? Two 4/0 AWG battery cables per terminal.