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Blue Sea Systems 7903200 Removable Spare Key for m-Series Battery Switch 6004200

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

7903200
08/04/2036 12:47 PM
Sale Price

$6.56

In Stock (9)

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Usually delivered within 2 days

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No Hassle Returns

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Fitment guaranteed

Fitment guaranteed

Product Details

The Blue Sea Systems 7903200 is a genuine OEM replacement removable key designed specifically for use with the Blue Sea Systems 6004200 Black m-Series Single Circuit Locking On-Off Battery Switch. If your original key has been lost or misplaced, this direct-fit spare restores full locking function to your switch without any modification.

Removing the key from the switch when in the OFF position provides a critical layer of safety, helping to prevent accidental power-on during electrical system servicing or when the vessel is left unattended. The key features a convenient slot for easy attachment to a keychain, ensuring it stays accessible when you need it.

Key Features:

  • Genuine Blue Sea Systems OEM replacement key for the 6004200 m-Series battery switch
  • Removable in the OFF position to prevent accidental power restoration during servicing
  • Keychain slot for secure storage and easy access
  • Water resistant and waterproof construction
  • 2-position key rotary type operation
  • Lifetime warranty backed by Blue Sea Systems

The Blue Sea Systems m-Series battery switch line is engineered to meet ABYC requirements and is CE marked and UL Listed (UL 1107), making these switches and their accessories a trusted choice for marine electrical installations. Keep a spare key on hand to ensure uninterrupted operation of your battery disconnect system.

Products specifications

Dimensions

2 3/4" Width x 4 1/2" Height x 1 1/4" Length

Features

WaterproofWater Resistant

Type

2 Position Key Rotary

Warranty Details

Lifetime

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Had a technical question, which was answered quickly, accurately, and professionally.

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