Circuit breakers protect the wire in electrical circuits and are absolutely essential in every vessel... water and electricity do not combine well! Blue Sea Systems offer a broad selection of magnetic and thermal circuit breakers including a large selection of main and branch circuit protection devices. Their robust design makes them ideal for all marine and vehicle AC & DC electrical systems. The Blue Sea range supplied by Bargain Boat Bits are suitable for all narrow boats, sailing boats and motor cruisers. If you need any technical information you can visit Blue Sea's page or see the specification within each category below.