The Blue Sea Systems 4378 is a WeatherDeck 8-position circuit breaker panel in gray, rated IP67 for temporary immersion up to 30 minutes.
IP67 is a step beyond the IP66 panels. This one survives being briefly underwater rather than only being soaked. That matters on a foredeck, a small open boat or anywhere a wave can bury the panel completely rather than sweep across it.
Label backlighting runs on its own independent circuit, so it can be switched and dimmed separately from the loads. It works with every Blue Sea digital dimmer, which matters at night when a bright panel destroys night vision at the helm just when it is needed.
The panel mounts in four different orientations, so one part number covers whichever way the available space runs. The faceplate is UV stabilized and weather resistant with corrosion resistant construction throughout, and the 4215 label kit with 30 square format labels is included. Explore more marine electrical panels.
- IP67 survives brief immersion, not just soaking
- For a foredeck or open boat a wave can bury
- Backlighting on its own dimmable circuit
- Mounts in four orientations from one part number








