Blue Sea Systems 7577 A-Series 50A Double Pole Breaker

Blue Sea Systems A-Series Double-Pole 50A Raised Rocker Circuit Breaker (7577-BSS / 7577)

The Blue Sea Systems 7577-BSS (Catalog SKU: 7577) is a precision A-Series Double-Pole 50A Magnetic-Hydraulic Circuit Breaker featuring a Raised Rocker Actuator. Engineered for switching and overcurrent protection across marine AC and DC systems, it simultaneous breaks both live/neutral or positive/negative legs in 120/240 V AC or low-voltage DC branch panels.

Utilizing magnetic-hydraulic trip mechanism technology, the 7577 maintains consistent current rating calibration unaffected by ambient temperature swings inside enclosed electrical lockers or engine spaces. Its "Trip-Free" design prevents the breaker from being held in the "ON" position manually during a active overcurrent fault. The raised rocker actuator features international I/O markings and an illuminated or colored indicator to clearly show the "OFF" status.

Key Features

• Magnetic-Hydraulic Tripping: Temperature-stable operation ensures accurate current trip points across extreme temperature ranges (-40°C to +85°C).

• Double-Pole Simultaneous Switching: Disconnects both conductors simultaneously to satisfy ABYC standards for AC main and DC branch isolation.

• Trip-Free Safety Design: Internal contacts trip open automatically under overload even if the rocker switch is forced or held in the ON position.

• Raised Rocker Actuator: Provides positive tactile feedback with clear visual indication when tripped or turned OFF.

• Panel-Mount Architecture: Directly compatible with Blue Sea Systems custom 360 and A-Series panel mounting cutouts.