Blue Sea 7549 C-Series Flat Rocker Circuit Breaker - Single Pole - 100A

The Blue Sea 7549 C-Series Flat Rocker Circuit Breaker — Single Pole — 100A is a marine-grade electrical protection device engineered for demanding DC power distribution systems. Designed for vessels, RVs, and industrial equipment where reliable circuit protection is non-negotiable, this single-pole breaker safeguards high-amperage electrical loads from overcurrent conditions and short circuits. The 100-amp rating makes it ideal for primary distribution panels and heavy-duty branch circuits requiring robust switching capability and fail-safe operation in harsh environments.

Blue Sea's C-Series breakers feature a flat rocker actuator design that provides tactile feedback and clear ON/OFF status indication, eliminating guesswork during system diagnostics or load management. The single-pole configuration allows independent control of one circuit branch, with thermal-magnetic trip technology that responds instantly to dangerous current surges while tolerating harmless inrush spikes common in motor-driven equipment. Built to UL and ABYC marine standards, this breaker withstands salt spray, vibration, and temperature fluctuations inherent to maritime and mobile applications, ensuring long service life even in corrosive or extreme conditions.

Installers and system designers benefit from the compact 3 × 2 × 5-inch footprint, which fits seamlessly into standard DC panel configurations without requiring extensive rewiring or enclosure modifications. The 100-amp rating suits applications including engine start circuits, thruster systems, large inverter loads, and shore-power backfeeds on cruising vessels and expedition RVs. Proper installation requires mounting in a UL-certified panel with appropriately sized marine-grade DC cable, ensuring the breaker's trip curve matches your system's load profile and protecting both equipment and personnel from electrical faults.