Blue Sea 12V 15A Below Deck Switch Panel with 1 Circuit Breaker and 2 Blank Positions
Blue Sea 12V 15A Below Deck Switch Panel with 1 Circuit Breaker and 2 Blank Positions
Pre-Wired Harness - Illuminated Carling Switch - Polycarbonate/ABS

DESCRIPTION
Customisable 12V DC Power Distribution and Circuit Protection
Engineered for Marine Cabins, Caravans, and Off-Grid Interiors
Managing auxiliary power in marine vessels, caravans, and recreational vehicles requires reliable components that protect your battery bank while offering flexible control. The Blue Sea Systems 4354B Below Deck Switch Panel provides a dedicated foundation for your 12V DC electrical system. Designed specifically for interior and sheltered cabin environments, this unit combines primary circuit protection with two open apertures, allowing you to build a tailored charging and monitoring station that suits your exact wiring requirements.
At the core of the panel is an illuminated 15A Carling Technologies circuit breaker switch. Unlike standard switches that require a separate fuse block, this integrated rocker switch acts as both the manual control and the overcurrent protection. Most importantly, it allows you to completely isolate downstream accessories when they are not in use. Modern USB chargers and digital voltmeters draw a small, continuous current even when idle. By shutting off the main breaker switch, you eliminate this parasitic draw, preventing unexpected battery drain during storage or extended stays off-grid.
Key Features and Technical Advantages
- Integrated 15A Circuit Protection: Features an illuminated Carling Technologies rocker switch that combines manual switching and resettable overcurrent protection into one reliable component.
- Eliminates Parasitic Battery Drain: Enables complete isolation of installed sockets and gauges to preserve your 12V battery capacity when the system is idle.
- Two Customisable Blank Positions: Supplied with two standard circular cutouts, ready to accept your choice of 12V socket receptacles, dual USB chargers, or mini digital voltmeters.
- Pre-Wired Harness Included: Simplifies installation behind the dash or bulkhead, reducing setup time and minimising the risk of wiring errors.
- Durable Polycarbonate/ABS Face: Constructed from UV-stabilised, flame-retardant materials that will not corrode in humid marine or coastal environments.
- Secure Flush-Mount Design: Features four pre-drilled corner mounting holes for a clean, professional finish on dashboards, cabinetry, or interior bulkheads.
Superior Build Quality for Demanding Environments
When installing electrical distribution hardware in a boat cabin or 4WD canopy, material selection is critical for long-term safety. Inferior panels often suffer from brittle plastics that crack under vibration or metal faces that oxidise in damp coastal air. The Blue Sea Systems below-deck panel is injection-moulded from high-grade polycarbonate/ABS. This material is completely corrosion-resistant, UV-stabilised to prevent discolouration from indirect sunlight, and flame-retardant to reduce fire risks in the event of a fault.
The inclusion of a factory-assembled, pre-wired harness streamlines the fit-out process. Instead of crimping multiple jumper leads in tight behind-dash spaces, installers can quickly integrate their chosen 12V accessories into the harness, ensuring secure connections that resist vibration and voltage drop.
Important Installation Notes and Applications
Please note that this switch panel is engineered strictly for 12V DC use only and is intended for below-deck or interior applications where it is protected from direct water spray and immersion. It is an ideal solution for:
- Marine Vessels: Installing cabin charging stations, navigation instrument power, or berth lighting controls in sheltered helm and saloon areas.
- Caravans and Camper Trailers: Creating a central bedside or kitchen hub for USB charging and battery voltage monitoring without draining house batteries overnight.
- 4WD and Canopy Fit-Outs: Managing auxiliary 12V accessories in the rear of a wagon or sealed service body with a single master shut-off switch.
Upgrade Your 12V Interior Control Panel
Build a clean, protected, and customisable power hub for your vessel or vehicle. Add the Blue Sea 12V 15A Below Deck Switch Panel to your system today for dependable circuit control and battery protection.
SKU: BS-4354B
SPECIFICATIONS
| Specification | Value |
|---|---|
| Product type | Switch panel |
| Operating voltage | 12V DC only |
| Switch count | 1 |
| Switch current rating | 15A circuit breaker switch |
| Switch | Illuminated Carling Technologies circuit breaker switch |
| Panel positions | 2 blank positions |
| Harness | Pre-wired harness included |
| Panel face material | Polycarbonate/ABS |
| Panel face properties | UV-stabilized, flame retardant and will not corrode |
| Charging and monitoring | Customizable 12V options |
| SKU: | BS-4354B |
| Model #: | BS-4354B |
| MPN: | BS-4354B |
| HS code: | 8536200040 |
| Country of origin: | MX |
| Package weight: | 0.42 kg |
| Package length: | 0.15 m |
| Package width: | 0.11 m |
| Package height: | 0.1 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.

