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Blue Sea Systems 7943 Contura II SPDT Water Resistant Switch (On)-Off-On-On Black

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

7943
06/01/2036 11:52 AM
Sale Price

$14.80

In Stock (8)

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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 7943 Contura II is a water-resistant, single-pole double-throw (SPDT) rocker switch designed for marine and automotive applications. This versatile switch features a momentary (On)-Off-On-On configuration, providing multiple switching options for controlling accessories, lighting, or electrical systems.

Key Features:

  • SPDT (Single Pole Double Throw) configuration with (On)-Off-On-On switching function
  • Water-resistant construction with sealed design for marine environments
  • Resistant to vibrations, shock, thermal shock, moisture, and salt spray
  • Black actuator with crisp, tactile feedback
  • Mounts directly in Blue Sea Systems Contura Water Resistant Panels and Contura Switch Mounting Panels
  • Compatible with standard Contura switch openings for easy installation

Engineered for harsh marine conditions, this Contura II switch delivers reliable performance in wet environments while maintaining the professional appearance Blue Sea Systems is known for. The momentary on position provides safe control for applications requiring temporary activation.

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (DEHP) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Products specifications

Color

Black

Positions

(On)-Off-On-On

Type

SPDT

Best deal on the Web..Very fast shipping, Easy installation.

Check out was very quick and easy. I also like how I was not forced to create an account to purchase

Great

Wow, Impressive delivery! It got here quicker than expected and Autoplicity actually carried what I was looking for.<br><br>Thank You Autoplicity!

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Best price. Best shipping rates.

Had instock, good price

Nice prices

Nice and easy

EASY AND FAST

pleased so far

best priced from any site, clear info. shipped on time<br>very happy will for sure come back

Great Parts.Great Service.Thank you.

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