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

Manufacturer

Blue Sea Systems

<p>When electrical reliability can mean the difference between a successful voyage and a dangerous situation, marine professionals and enthusiasts turn to Blue Sea Systems. Founded in 1992, this American manufacturer has built a reputation for creating electrical components specifically engineered to withstand the unforgiving marine environment. Every product reflects a commitment to safety standards and real-world performance that has made Blue Sea Systems a leading name in marine and specialty vehicle electrical systems.</p> <h3>Engineering for the Marine Environment</h3> <p>Blue Sea Systems develops and manufactures dependable AC and DC electrical products for marine and specialized vehicle applications, designed in the USA and engineered to excel in challenging environments. The marine environment presents unique challenges—salt spray, constant vibration, temperature extremes, and moisture exposure—that can quickly degrade inferior electrical components. Blue Sea Systems addresses these challenges through careful material selection, rigorous testing protocols, and designs that prioritize both safety and serviceability. Their components are engineered for marine use and align with the intent of ABYC E-11: AC and DC Electrical Systems on Boats and relevant USCG electrical regulations.</p> <h3>Commitment to Safety Standards</h3> <p>Safety standards aren't just guidelines for Blue Sea Systems—they're fundamental to every product design. All Blue Sea Systems marine battery disconnect switches comply with the ABYC C-7 certification, demonstrating their commitment to meeting and exceeding industry safety requirements. The company maintains ABYC-certified employees across multiple departments, from engineering to technical support, ensuring deep expertise in marine electrical system design and installation standards.</p> <h3>Comprehensive Product Range</h3> <p>Blue Sea Systems offers an extensive catalog designed to address every aspect of marine electrical systems. Their <a href="/7262-blue-sea-systems-circuit-breakers-200260">circuit breakers</a> provide resettable overcurrent protection with trip-free designs and clear trip indication for quick diagnostics. For power management, their <a href="/7262-blue-sea-systems-battery-switches-manual-200149">battery switches</a> offer reliable methods for controlling battery banks and disconnecting loads during storage or emergencies, with ABYC C-7 compliance guaranteed.</p> <p>Monitoring system health is critical aboard any vessel, which is why their <a href="/7262-blue-sea-systems-battery-monitors-volt-meters-200146">battery monitors and volt meters</a> provide accurate real-time data to help operators make informed decisions about power usage and charging. The company's <a href="/7262-blue-sea-systems-terminal-blocks-bus-bars-201059">terminal blocks and bus bars</a> create organized, serviceable connection points that simplify installation and future modifications. For keeping batteries properly charged, Blue Sea Systems offers <a href="/7262-blue-sea-systems-battery-chargers-200141">battery chargers</a> engineered with features like automatic charging relay compatibility and proper charge profile management.</p> <h3>Built by Boaters, for Boaters</h3> <p>Blue Sea Systems was founded based on a commitment to create innovative high quality marine electrical products to improve the safety, simplicity, and reliability of boating, with employees who are active boaters applying their passion to designing, developing, and building products. This firsthand experience translates into practical features like modular layouts, standardized footprints, and installer-centric designs that streamline panel work and serviceability. The result is a product line that addresses real challenges faced on the water, backed by comprehensive technical documentation and support resources that help both professionals and DIY enthusiasts complete installations with confidence.</p>

Part Number

3002BSS
06/01/2036 3:06 PM
Sale Price

$109.39

In Stock (9)

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Product Details

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.

Products specifications

Type

Selector 4 Position

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