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Blue Sea 12V/24V 45A 4378 Weatherproof 8 Position Circuit Breaker Panel - Grey
Blue Sea 12V/24V 45A 4378 Weatherproof 8 Position Circuit Breaker Panel - Grey
IP67 Waterproof - 12V/24V DC Compatible - Dimmable Green LED Backlit
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DESCRIPTION
Blue Sea Systems 8-Position WeatherDeck Waterproof Circuit Breaker Panel
Engineered for Harsh Marine, Off-Road, and Open Cockpit Environments
The Blue Sea Systems 4378 WeatherDeck Panel is a robust 8-position power distribution solution designed specifically for exposed locations. Whether you are outfitting a marine vessel's flybridge, an open cockpit, or a rugged 4WD canopy, this 12V and 24V DC waterproof switch panel delivers reliable circuit protection and switching control where standard panels would fail due to moisture ingress.
Constructed from corrosion-resistant, UV-stabilised reinforced polycarbonate, the grey enclosure stands up to relentless sun, salt spray, and washdowns. Unlike basic consumer-grade alternatives that suffer from brittle plastics, rusted terminals, and corroded contacts after a single season, this marine-grade panel is built to maintain electrical integrity in severe Australian conditions.
IP67 Ingress Protection and Integrated Circuit Breakers
Water ingress is one of the leading causes of electrical failure in marine and off-grid setups. The WeatherDeck series mitigates this risk by achieving an IP67 front-face rating when properly mounted with its watertight gasket, meaning it is protected against dust and temporary immersion in water for up to 30 minutes. Each of the eight bimetallic toggle switches is shielded by a heavy-duty waterproof rubber boot, eliminating the need for clunky external hinged covers that can snap off or obstruct quick access during an emergency.
By integrating circuit protection and switching into a single unit, this panel simplifies your wiring layout and saves valuable dash space. It supports both 12V DC and 24V DC nominal systems, handling a cumulative rating of 45A across the panel to run essential electronics smoothly.
Key Features and Benefits
- IP67 Waterproof Rating: Protected against dust and temporary water immersion for 30 minutes, ideal for exposed dashboards and washdown zones.
- Dual Voltage Compatibility: Suitable for both 12V DC and 24V DC electrical systems, offering flexibility for marine, caravan, and heavy vehicle applications.
- Integrated Circuit Protection: Combines switching and circuit breakers into one unit to reduce wiring complexity and safeguard downstream devices.
- Independent Label Backlighting: Green LEDs illuminate all circuit labels when the panel is powered, aiding low-light readability without preserving the night vision of the helm operator.
- Dimmer Compatible: Fully compatible with all Blue Sea Systems Digital Dimmers for customisable brightness control during night navigation.
- Multi-Orientation Mounting: Can be installed in four different orientations (including vertically or horizontally) to suit tight or unconventional dash layouts.
- UV-Stabilised Construction: Reinforced polycarbonate faceplate resists degradation, cracking, and discolouration in direct sunlight.
Smart Illumination and Flexible Installation
Operating a vessel or vehicle at night requires clear visibility without blinding glare. The Blue Sea Systems 8-position panel features independent green LED backlighting on every label area. Whenever the panel receives power, the labels remain lit regardless of the individual switch positions, allowing you to quickly identify controls for navigation lights, bilge pumps, or deck floodlights in pitch-black conditions. Separate status LEDs clearly indicate which specific circuits are actively engaged.
For custom installations where space is at a premium, the clever symmetrical design allows the panel to be mounted in four different rotations. This ensures your labels and switches align logically with your helm or control board layout.
Upgrade Your Electrical Control Today
Eliminate the risk of moisture-related short circuits and unreliable power distribution. Add the Blue Sea Systems 8-Position WeatherDeck Circuit Breaker Panel to your setup for professional-grade control in any weather.
SKU: BS-4378B
SPECIFICATIONS
Specifications
| Model | 4378 |
|---|---|
| Colour | Gray |
| Weatherproof | Waterproof |
| Ingress Protection | IP67 - temporary immersion for 30 minutes |
| Positions | 8 |
| Nominal Voltage | 12 V DC; 24 V DC |
| Circuit Protection | Circuit Breaker |
| Maximum Amperage | 15 A @ 12 V DC (per circuit); 9 A @ 24 V DC (per circuit) |
| Panel Cumulative Rating | 45 A |
| Backlit Label | Green LED |
| Backlighting Amperage | 10 mA / Illuminated Circuit |
| Backlighting Voltage | 12 or 24 V DC |
| Material | Reinforced Polycarbonate |
| Height | 7.70 in (195.58 mm) |
| Width | 4.25 in (107.95 mm) |
| Depth | 3.50 in (88.9 mm) |
| SKU: | BS-4378B |
| Model #: | BS-4378B |
| MPN: | BS-4378B |
| Package weight: | 1.08 kg |
| Package length: | 0.27 m |
| Package width: | 0.2 m |
| Package height: | 0.15 m |
WARRANTY
Blue Sea Warranty Policy
Blue Sea Systems products sold by us are supplied with a warranty against defects for the warranty period shown below, subject to the product type, application and the terms of this warranty policy.
The express warranty provided by us is limited to a maximum of 5 years from the original date of purchase, unless otherwise required under Australian Consumer Law.
Blue Sea Systems may offer longer manufacturer support on some products at their discretion
Warranty Lengths by Product Range
| Blue Sea Product Range | Warranty Length | Application / Notes |
|---|---|---|
| Most Blue Sea Systems Products | 5 years | Applies to most Blue Sea Systems products found to be defective in materials or manufacture. |
| P12 Battery Chargers | 5 years | Warranty period starts from the original date of purchase. |
| P12 Remote Displays | 5 years | Warranty period starts from the original date of purchase. |
| Digital Meters | 3 years | Warranty period starts from the original date of purchase. |
| Vessel System Monitors | 3 years | Warranty period starts from the original date of purchase. |
Warranty Assessment and Remedy
If a Blue Sea Systems product is found to be defective in materials or manufacture within the applicable warranty period, we will, at our discretion, arrange a repair, replacement, store credit or refund, depending on the nature of the fault and the requirements of Australian Consumer Law.
Products may need to be returned for assessment before a warranty claim can be approved. Where required, the product must be returned with dated proof of purchase and a clear description of the fault.
Labour costs for removing, replacing, reinstalling or diagnosing a product are not covered by this express warranty unless otherwise required under Australian Consumer Law.
Making a Warranty Claim
To make a warranty claim, please contact us with your dated proof of purchase, product details and a description of the fault.
The product may need to be returned for inspection before the claim can be assessed. If the product is confirmed to be faulty and covered by this warranty, we will advise the available remedy.
What This Warranty Does Not Cover
This warranty does not cover faults or damage caused by incorrect installation, incorrect application, misuse, abuse, neglect, unauthorised modification, accidental damage, normal wear and tear, environmental damage, or failure to use the product in accordance with the manufacturer's instructions.
- Incorrect installation or wiring
- Incorrect product selection or application
- Misuse, abuse or neglect
- Physical or accidental damage
- Water ingress or environmental damage outside the product's intended use
- Unauthorised modification or repair
- Normal wear and tear
- Labour costs for removal, replacement, reinstallation or diagnosis
- Freight, travel or call-out costs unless otherwise required by law
- Products not returned for assessment when reasonably required
Manufacturer Support
Blue Sea Systems may provide additional manufacturer support on some products beyond the warranty period listed above. Where available, we may assist customers in contacting the manufacturer, but any manufacturer support beyond the express warranty period is subject to the manufacturer's own terms and continued availability.
Australian Consumer Law
This warranty is in addition to other rights and remedies available at law. Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
DOCUMENTS
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