Blue Sea Systems 187-Series Circuit Breaker - Surface Mount 100A - 7144Blue Sea Systems 187 Series Circuit Breaker Surface Mount 100A 7144 Combines switching and circuit protection into a single device* Clear, single lever operation "Trip Free" design cannot be held "ON" during fault current condition Waterproof Recessed mounting holes for clean appearance Large Clearance around terminal studs accept heavy gauge wire lugs Robust 5 16 M8 terminals provide high torque connections Large lever with vertical horizontal