Blue Sea Systems 3002BSS Heavy Duty 4-Position Battery Selector Switch 500A

The Blue Sea Systems 3002BSS HD-Series Heavy Duty Battery Selector Switch is engineered for demanding marine applications with large diesel engines, offering up to 500A continuous current rating. This robust 4-position selector switch features a one-piece tin-plated copper stud design that maintains secure connections over time without loosening, ensuring reliable performance in harsh marine environments.

Key Features:

• 500A continuous rating suitable for large diesel engine applications
• One-piece tin-plated copper stud construction prevents terminal loosening
• Make-before-break contact design ensures uninterrupted power during switching
• Terminal studs accept 1/2" or M12 ring terminals for versatile installation
• Ignition protected for safe operation in gasoline engine compartments
• UL Listed for compliance and safety assurance

Performance Specifications:

• Cranking Rating (30 seconds): 1600A DC
• Cranking Rating (1 minute): 1150A DC
• Intermittent Rating (5 minutes): 700A DC
• Continuous Rating: 500A DC

This heavy-duty battery switch allows you to select between two battery banks, combine them for maximum starting power, or disconnect all batteries. The make-before-break design prevents voltage spikes that could damage sensitive electronics during battery bank switching, making it ideal for vessels with advanced navigation and communication systems.