Blue Sea A-Series ELCI Main Circuit Breaker - Double Pole 120V AC 30A

The Blue Sea A-Series ELCI Main Circuit Breaker – Double Pole 120V AC 30A is a critical electrical safety component designed for marine vessels, RVs, emergency vehicles, and mobile command centers where reliable AC power distribution is non-negotiable. Built by Blue Sea Systems, a manufacturer trusted by military, coast guard, and law enforcement agencies for over four decades, this main circuit breaker protects high-draw AC systems from overload and short-circuit damage. The 30-ampere rating makes it ideal for mid-size electrical installations where redundancy and failsafe operation are essential to mission readiness.

This double-pole breaker operates on 120V AC and features ELCI (Equipment Leakage Circuit Interrupter) technology, which detects even minor ground faults that standard breakers miss—a critical safety margin in wet, electrically hostile environments common to tactical operations and field deployments. The A-Series design provides instantaneous trip response to fault conditions, preventing equipment damage and reducing arc flash risk. At just 0.8 pounds and measuring 5 x 4 x 6 inches, the compact form factor allows integration into tight electrical panels without sacrificing accessibility or serviceability. The robust construction withstands vibration, thermal cycling, and corrosive salt spray, ensuring consistent performance in demanding maritime and mobile tactical environments.

Operators managing shore power systems, mobile command vehicles, emergency response vessels, or expeditionary base camps benefit from the redundant fault protection this main breaker delivers. Installation requires direct connection to the main AC service panel, and compatibility with standard DIN-rail or panel-mount configurations allows drop-in replacement of legacy breakers. Whether you're equipping a patrol boat, communications trailer, forward operating base, or rescue vehicle, the Blue Sea A-Series ELCI main breaker ensures electrical integrity under mission-critical conditions where power failure is not an option.