Blue Sea Systems m-Series On-Off Marine Battery Switch – 300A – 6006

Control your boat's electrical power with the Blue Sea Systems m-Series On-Off Battery Switch (MFG #6006). Designed for marine electrical systems, this compact, heavy-duty battery disconnect switch provides simple manual ON/OFF control of a single battery circuit.

Featuring a 300-amp continuous current rating, the Blue Sea Systems 6006 is designed for properly sized electrical systems on outboard-powered boats and smaller gasoline or diesel engine applications.

Built for demanding marine environments, the m-Series 6006 Battery Switch features tin-plated copper terminal studs for reliable electrical conductivity and corrosion resistance, a durable housing, and an IP66 water-resistance rating. Its versatile mounting design allows for surface, rear, or front-panel installation.

Whether you're replacing an existing marine battery switch or installing a battery disconnect for easier electrical system management, the Blue Sea Systems 6006 provides dependable, straightforward battery control.

Key Features & Benefits

• Single-Circuit ON/OFF Control: Provides manual battery connection and disconnection for one electrical circuit.
• 300 Amp Continuous Rating: Designed for compatible marine starting and auxiliary electrical systems.
• Easy-to-Use Rotary Knob: Allows convenient switching between ON and OFF positions.
• Marine Battery Isolation: Helps disconnect switched electrical loads during maintenance or storage.
• Tin-Plated Copper Studs: Provide excellent conductivity and corrosion resistance.
• 3/8" (M10) Terminal Studs: Accept compatible marine battery cable ring terminals.
• 7/8" (22 mm) Stud Length: Accommodates multiple cable terminals where installation requirements permit.
• One-Piece Terminal Stud Design: Helps prevent terminal studs from loosening over time.
• IP66 Water Resistance: Provides protection against dust and powerful water jets.
• Protective Terminal Cover: Includes three snap-in side pieces for rear-contact protection and flexible cable routing.
• Multiple Mounting Options: Supports surface, rear, and front-panel mounting.
• Compact m-Series Design: Suitable for marine electrical installations where space is limited.

Ideal Applications

The Blue Sea Systems m-Series 6006 Battery Switch is designed for boat owners who need convenient manual control over a single battery circuit.

Common applications include:

• Outboard-powered boats
• Small gasoline and diesel engine boats
• Marine starting battery disconnects
• Auxiliary battery circuit isolation
• Recreational powerboats
• Fishing boats
• Marine electrical system maintenance
• Battery disconnection during seasonal storage

Its simple two-position design makes it a practical choice for installations that do not require selecting between multiple battery banks.

Product Specifications

• Brand: Blue Sea Systems
• Product Series: m-Series
• Model: Single Circuit ON-OFF Battery Switch with Knob
• Manufacturer Part Number (MFG #): 6006
• Product Type: Marine Battery Disconnect Switch
• Switch Positions: ON / OFF
• Number of Circuits: 1
• Continuous Current Rating: 300 Amps
• Terminal Material: Tin-Plated Copper
• Terminal Stud Size: 3/8" (M10)
• Terminal Stud Length: 7/8" (22 mm)
• Terminal Construction: One-Piece Stud Design
• Water-Resistance Rating: IP66
• Mounting Options: Surface, Rear, or Front Panel
• Terminal Protection: Isolating Cover with Three Snap-In Side Pieces
• Recommended Applications: Marine Battery Disconnect and Single-Circuit Isolation
• Quantity Included: 1 Battery Switch

ON/OFF Battery Switch Operation

The Blue Sea Systems 6006 features two positions for straightforward battery control.

ON: Connects the battery to the switched electrical circuit, allowing power to flow to connected equipment.

OFF: Disconnects the switched electrical circuit from the battery, helping isolate connected loads during maintenance, storage, or periods when electrical power is not needed.

Unlike a four-position battery selector switch, the 6006 does not provide separate Battery 1, Battery 2, or BOTH settings.

Important: Turning the switch OFF only disconnects circuits wired through the switch. Equipment connected directly to the battery may remain powered.

Corrosion-Resistant Marine Construction

The Blue Sea Systems m-Series 6006 features tin-plated copper terminal studs designed to maintain reliable electrical connections in demanding marine environments.

Tin plating helps resist corrosion, while the one-piece terminal stud design reduces the possibility of terminal studs loosening over time.

The protective terminal cover includes three snap-in side pieces that help shield rear electrical contacts and accommodate cable routing from different directions.

IP66 Water-Resistant Design

With an IP66 rating, the Blue Sea Systems 6006 provides protection against dust and powerful water jets under specified test conditions.

This makes it suitable for appropriately mounted marine applications where moisture, spray, and changing environmental conditions are common.

IP66 does not mean the switch is designed for continuous underwater submersion.

Flexible Mounting Options

The Blue Sea Systems m-Series Battery Switch supports three installation configurations:

• Surface mounting
• Rear mounting
• Front-panel mounting

Its compact housing and flexible cable-routing design allow installation in compatible battery compartments, electrical panels, and other suitable onboard locations.

Always follow Blue Sea Systems installation instructions and use properly rated marine cables, terminals, and circuit protection.

Why Use a Marine Battery Disconnect Switch?

A marine battery disconnect switch provides convenient manual control over battery power in a properly designed electrical system.

Installing a battery switch can help boat owners:

• Disconnect switched electrical loads during storage
• Isolate a battery circuit for maintenance
• Reduce unintended battery drain from switched equipment
• Provide convenient manual power control
• Simplify routine marine electrical system management

The Blue Sea Systems 6006 is a straightforward solution for applications requiring single-circuit ON/OFF control rather than dual-battery selection.

Frequently Asked Questions

What is the Blue Sea Systems 6006 used for?

The 6006 is a marine battery disconnect switch used to manually connect or disconnect a single battery circuit.

What is the amperage rating of the Blue Sea 6006?

The switch has a 300-amp continuous current rating.

Does the Blue Sea Systems 6006 work with two batteries?

The 6006 is a single-circuit ON/OFF switch. It does not independently select between two batteries. For Battery 1, Battery 2, and BOTH selection, consider the Blue Sea Systems m-Series 6007.

Is the Blue Sea 6006 waterproof?

The switch has an IP66 rating, providing protection against powerful water jets. It is not designed for continuous submersion.

Can I use this switch to disconnect my boat's battery during storage?

Yes. The switch can disconnect circuits wired through it. Any equipment connected directly to the battery will remain connected.

Can I turn the battery switch OFF while the engine is running?

Do not turn the switch OFF while the engine is running unless your electrical system is specifically designed to permit it. Disconnecting the battery from a running charging system can damage electrical equipment.

What size cable terminals fit the Blue Sea 6006?

The switch accepts compatible 3/8" (M10) ring terminals.

Can this switch be mounted behind a panel?

Yes. The m-Series design supports surface, rear, and front-panel mounting configurations.

What is the difference between the Blue Sea Systems 6006 and 6007?

The 6006 is a two-position ON/OFF switch for one circuit. The 6007 is a four-position selector switch that allows Battery 1, Battery 2, BOTH, or OFF operation.

What is the manufacturer part number?

The manufacturer part number is 6006.

What's Included

• (1) Blue Sea Systems m-Series ON-OFF Marine Battery Switch – MFG #6006
• Protective terminal cover with snap-in side pieces

Shop Blue Sea Systems marine battery switches and electrical accessories at Bakes Marine. Find marine battery management products, onboard battery chargers, and electrical supplies to keep your boat ready for your next adventure.