Attwood Battery Selector Switch 4 Way

Overview

Four-way battery selector switch designed to manage multiple DC power sources in marine and other 632 V DC electrical systems. It offers four connection modes: Battery One, Battery Two, two batteries in parallel, or both off. Includes an alternator field circuit disconnect for switching while the engine is running.

Key Features

• Four connection modes: Battery One, Battery Two, two batteries in parallel, or off.
• 300 A continuous at 6 V DC; 150 A continuous at 12 V DC.
• For 632 V DC systems.
• Includes alternator field circuit disconnect to allow switching while the engine is running.
• Positive click positions for reliable operation.
• Bakelite housing with brass terminals and brass nuts.
• Install with #10 screws.
• 1, 2, Both, Off.

Compatible Applications

• Marine electrical systems with dual battery banks
• 632 V DC systems needing battery isolation or switching between banks
• Applications requiring the ability to switch while the engine is running due to alternator disconnect feature
• General DC power management for vehicles or boats with multiple power sources

Product Details

• SKU: 23-142303
• Poles/Throws: Single-pole, triple-throw
• Connection modes: Battery One; Battery Two; two batteries in parallel; Off
• Voltage range: 632 V DC
• Continuous current ratings: 300 A at 6 V DC; 150 A at 12 V DC
• Field circuit disconnect allows switching while the engine is running
• Housing: Bakelite with brass terminals and brass nuts
• Mounting: #10 screws
• Positions: 1, 2, Both, Off

Parts Desk Insights

Best Use Case: Best used to manage two battery banks on boats or similar vehicles, allowing quick switching between Battery One, Battery Two, or both in parallel, or turning the system off. The field disconnect enables charging while the engine runs.

Common Issues: Wiring errors can cause cross-connection between banks; ensure correct assignment of Battery One/Two and parallel connections. Verify system voltage remains within 632 V DC and that load does not exceed the rated amperage. Loose terminals or improper mounting can cause poor contact or switch wear.

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• Switches & Circuit Protection: Related Battery Selectors – Browse category for related switches and battery selector options.