Attwood Battery Selector Switch

ATTWOOD Battery Selector Switch | Reliable Marine Power Management

Category: Electronics
Subcategory: Electrical Connections
Attribute: Switches

Take complete and confident control of your vessel´s electrical system with the industry-leading ATTWOOD Battery Selector Switch. Engineered for uncompromising reliability and performance in demanding marine environments, this switch is the cornerstone of a safe, flexible, and efficient onboard power management setup. It provides a single, robust control point for managing multiple batteries, ensuring you have the power you need for starting your engine, running electronics, and maintaining battery health, all while protecting your critical systems.

Experience unparalleled flexibility and safety on the water. This essential piece of electrical equipment allows you to easily switch between power sources, isolate individual batteries for charging or maintenance, or combine the power of two batteries in parallel for emergency starting situations. One of its most critical features is the integrated alternator field circuit disconnect. This "make-before-break" functionality intelligently safeguards your alternator from damaging voltage surges that can occur when switching between batteries while the engine is running—a vital protection for modern marine engines and sensitive electronics. With the ATTWOOD Battery Selector Switch, you can ensure you always have starting power reserved and prevent unexpected dead batteries, giving you peace of mind during every voyage.

Main Features

The design of this switch prioritizes durability, safety, and ease of use. It offers versatile power management through a single-pole, triple-throw design, which provides four distinct and clearly marked operational modes: you can draw power from Battery 1, switch over to Battery 2, combine the output of both batteries in parallel (Battery 1+2), or move to the OFF position to completely disconnect the batteries from the electrical system for safety, storage, or servicing. The switch features a robust selector knob with positive click-stop positions, providing clear tactile feedback that confirms your selection and prevents accidental movement between settings, even in rough conditions.

Built to last, the switch is constructed with a durable, high-insulation Bakelite housing that effectively resists moisture, heat, and vibration. For maximum electrical performance and longevity, it is equipped with highly conductive brass terminals and secured with brass nuts, ensuring a solid, corrosion-resistant connection for optimal power transfer and minimal voltage drop.

Technical Specifications:

* Voltage Compatibility: For 6-volt to 32-volt D.C. systems.
* Amperage Rating: Rated for 300-amps continuous at 6-volt DC and 150-amps continuous at 12-volt DC.
* Switch Type: Single-pole, triple-throw.
* Connection Modes: Four positions (Battery 1, Battery 2, Batteries 1+2, OFF).
* Safety Feature: Includes alternator field circuit disconnect to prevent electrical surges.
* Installation: Mounts with 10 screws.
* Dimensions: 5-1/2 inches diameter x 2-3/4 inches deep