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Blue Sea Systems 3104 ELCI Main Circuit Breaker 50A 120/240V

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

3104
06/01/2036 9:08 AM
Sale Price

$585.78

4 left at this price

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Usually delivered within 2 days

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Product Details

The Blue Sea Systems 3104 C-Series ELCI (Equipment Leakage Circuit Interrupter) Main Circuit Breaker provides comprehensive electrical protection for marine shore power systems. This 50-amp breaker delivers both overcurrent and leakage protection in compliance with ABYC E-11 standards, safeguarding your entire vessel's electrical system from the shore power connection point.

Key Features:

  • Integrated ELCI protection for whole-boat shore power safety per ABYC E-11 standards
  • Triple protection: trips on short circuit, overload, or ground leakage conditions
  • UL 1500 ignition protected for safe installation in gasoline engine compartments
  • Front panel mount design for clean integration into power distribution panels
  • Magnetic hydraulic trip-free mechanism for reliable operation
  • 30mA leakage trip sensitivity for enhanced safety

Technical Specifications:

  • Amperage Rating: 50A
  • Voltage: 120VAC per pole / 240VAC combined
  • Poles: 3-pole configuration
  • Interrupt Capacity: 5,000A
  • Circuit Breaker Type: Magnetic hydraulic, trip-free
  • Actuator Style: Flat rocker
  • Operating Temperature Range: -35°C to 66°C (-31°F to 151°F)
  • Leakage Trip Threshold: 30mA
  • Ignition Protection: Yes, meets UL 1500 requirements

This main breaker is designed for marine applications where reliable overcurrent and ground fault protection are critical. The ELCI functionality continuously monitors for dangerous leakage current that could indicate deteriorating insulation or ground faults, providing an essential layer of safety beyond standard circuit protection.

Great selection and price, in very sturdy packaging to protect from damage during shipping.

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it was great

Very easy to follow and buy. Thank you

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So far so good we'll wait to see the product

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