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Blue Sea Systems 3102100 A-Series ELCI Main Circuit Breaker Double Pole 120V AC 30A Flat Rocker

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

3102100
08/02/2036 8:58 PM
Sale Price

$464.80

In Stock (6)

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Blue Sea Systems 3102100 A-Series ELCI Main Circuit Breaker is a double pole, 30A, 120V AC breaker designed to provide comprehensive shore power protection for marine electrical systems. Combining Equipment Leakage Circuit Interrupter (ELCI) technology with magnetic hydraulic overcurrent protection, this breaker delivers whole-boat safety in a compact flat rocker form factor sized for front-panel installation in a power distribution panel.

The 3102100 trips automatically on short circuit, overload, or leakage to ground, making it an essential safety component at the main shore power entry point of any vessel. Its trip-free design ensures it cannot be held in the ON position during a fault condition, providing a critical layer of protection against electrical shock and fire hazards.

Key Features:

  • Provides overcurrent and leakage protection per ABYC E-11 for whole-boat shore power protection
  • Meets UL 1500 external ignition protection requirements — safe for use in gasoline engine compartments
  • Trips on short circuit, overload, or leakage to ground (30mA leakage trip threshold)
  • Magnetic hydraulic, trip-free circuit breaker design — cannot be held ON during a fault
  • 5,000A interrupt capacity for high-fault protection
  • Flat rocker actuator style — designed for front-panel mounting in a power distribution panel
  • Double pole configuration simultaneously disconnects both hot and neutral conductors
  • Ignition protected — compliant for use in spark-ignition engine environments

Specifications:

  • Amperage: 30A
  • Voltage: 120V AC (240VAC/120VAC per pole max)
  • Poles: 2 (Double Pole)
  • Actuator Style: Flat Rocker
  • Circuit Breaker Type: Magnetic Hydraulic — Trip Free
  • Interrupt Capacity: 5,000A
  • Leakage Trip Current: 30mA
  • Mounting Screw: #6-32 Stainless Steel
  • Mounting Screw Torque: 6 in-lb (0.68 Nm)
  • Switching Cycles: 10,000
  • Operating Temperature: -35°C to 66°C (-31°F to 151°F)
  • Weight: 0.66 lb

Built to Blue Sea Systems' rigorous marine-grade standards, the 3102100 is engineered for the harsh onboard environment and integrates seamlessly with Blue Sea Systems AC power distribution panels and shore power inlets.

Products specifications

Amperage

120 Volts AC 30 Amps

Mounting Hardware

Breaker Panel; Fasteners (Sold Separately)

Type

Circuit Breakers

ISO Approved

UL 1500 and SAE J1171 External Ignition Protection

Warranty Details

Lifetime

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Easy and fast Excellent

I thought I was getting 10% off my next order but never got that.

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