Blue Sea 7407 Single Pole Small Case 2" Flat Rocker Circuit Breaker - 40 Amp

The Blue Sea Systems 7407 Single Pole Small Case 2" Flat Rocker Circuit Breaker is a 40-amp marine and electrical protection device built for demanding applications where reliable overload and fault-current shutoff is critical. This single-pole breaker delivers industry-standard performance in compact form, making it the standard choice for vessel electrical systems, off-grid power installations, and mobile power management where space is limited and protection cannot fail.

The 40-amp rating handles moderate to high-load circuits without nuisance tripping, while the "trip free" design ensures the breaker cannot be manually held in the ON position during a fault condition—a critical safety feature in marine and remote power systems where breaker bypass is a known hazard. The color-coded actuator clearly indicates OFF position at a glance, reducing operational confusion during emergency situations or routine system checks. The 2" flat rocker switch provides reliable tactile feedback and is sealed in a small case format that integrates cleanly into standard electrical panels.

This breaker is engineered for marine environments, RV power systems, off-grid solar installations, and any DC or AC circuit requiring positive load protection. Vessel operators, expeditionary teams, and electrical system integrators rely on Blue Sea Systems breakers because they perform consistently under salt-air corrosion, temperature extremes, and vibration. The 40-amp capacity makes this model suitable for branch circuits serving moderate loads—typical applications include battery distribution, charging system protection, thruster circuits, and auxiliary power feeds.

Blue Sea Systems is the standard in marine electrical protection, known across commercial fishing, military sealift operations, and expedition logistics for breakers that do not fail in high-stakes environments. This model's compact footprint and proven trip characteristics make it a direct replacement and upgrade path for older panel-mount breakers in retrofit and new-build installations.