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

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.