Blue Sea 12/24VDC 45A 4374 4 Position Waterproof Circuit Breaker Panel - Grey

Waterproof 4-Position Circuit Breaker Panel for Exposed Marine and Off-Grid Installations

Managing electrical systems in harsh environments requires hardware that can withstand continuous exposure to moisture, salt spray, and UV radiation. The Blue Sea Systems 4374 WeatherDeck 4-Position Circuit Breaker Panel is purpose-built for open cockpits, flybridges, and exposed 4WD or camper trailer installations. Engineered to meet stringent marine standards, this unit combines circuit switching and overcurrent protection into a single, compact housing.

IP67 Waterproof Protection

Standard electrical panels quickly corrode or short-circuit when exposed to wet conditions. This panel achieves an IP67 ingress protection rating when properly mounted with its integrated waterproof boots, meaning it is sealed against dust and capable of withstanding temporary immersion in water for up to 30 minutes. The faceplate is constructed from UV-stabilised, reinforced polycarbonate that resists cracking, fading, and corrosion in coastal and marine environments, eliminating the common failure points of standard-grade switch panels.

Integrated Circuit Breakers and Versatile Voltage

Instead of relying on separate fuse blocks that require carrying spare fuses, this WeatherDeck panel utilises push-button reset-only circuit breakers. This provides reliable circuit protection and immediate restoration of power if an overload occurs. While frequently searched for 12V DC setups, the panel is fully compatible with 24V DC systems as well, supporting a cumulative rating of 45A across its four circuits (up to 15A per circuit at 12V DC, or 9A per circuit at 24V DC).

Key Features and Benefits

• IP67 Rated Construction: Protected against dust ingress and temporary water immersion for 30 minutes, ideal for exposed dashboards and transoms.
• Dual Voltage Compatibility: Operates seamlessly in both 12V DC and 24V DC electrical systems.
• Independent Label Backlighting: Green LEDs illuminate all circuit labels when the panel is powered, aiding low-light readability regardless of individual switch positions.
• Dimmer Ready: Fully compatible with Blue Sea Systems Digital Dimmers for customised night-time helm visibility.
• Flexible Mounting: Can be installed in four different orientations (including vertical and horizontal) to suit tight or unconventional dash layouts.
• Marine-Grade Durability: UV-stabilised polycarbonate faceplate and booted push-button breakers prevent moisture intrusion and corrosion.

Enhanced Low-Light Visibility and Ergonomics

Navigating at night or operating equipment in low-light conditions requires clear visual feedback. Each of the four recessed label positions is backlit by an independent green LED, consuming a minimal 10mA per illuminated circuit. Because the backlighting circuit is independent of the switching circuit, you can easily wire the labels to a separate dash switch or integrate them with a digital dimmer to prevent night-blindness at the helm.

Applications

With its compact footprint of 109.22mm x 107.95mm (4.30 in x 4.25 in), the Blue Sea Systems 4374 grey panel is an exceptional choice for spaces where durability and size are critical:

• Centre console boats, RIBs, and personal watercraft
• Yacht flybridges and open-air helm stations
• Exterior utility boxes on 4WDs, service bodies, and expedition vehicles
• Camper trailers and caravan exterior lockers exposed to weather and dust

Upgrade Your Electrical Distribution

Protect your critical marine and off-grid electronics from water damage and electrical overloads. Integrate the Blue Sea Systems 4-Position Waterproof Circuit Breaker Panel into your 12V or 24V setup for dependable, weatherproof power control.