Blue Sea Systems — Water-Resistant Accessory Panel, 12V Socket & Dual USB — BSS-4365

Blue Sea Systems 4365 Water-Resistant Accessory Panel with 12V Socket and Dual USB Charging

Upgrade your console with a water-resistant Blue Sea Systems 4365 accessory panel that combines a protected 12V outlet with dual USB charging. It is built around an illuminated 15A circuit breaker switch and a pre-wired harness, so installation is straightforward and the panel gives you a clean, single-point control for accessories at the dash.

Key Features

• Illuminated 15A circuit breaker switch lets you shut off the panel to prevent parasitic draw
• Pre-wired harness included to simplify installation
• Water-resistant design with silicone breaker boots and a panel gasket to help protect against water ingress
• Polycarbonate/ABS panel face is UV-stabilized, flame retardant, and will not corrode
• 12V socket plus 2 x 2.1A dual USB chargers
• 12V DC only

Compatible Applications

• Marine accessory panel mounting for 12V DC electrical systems
• Dash and console accessory charging for smartphones and tablets where a 12V DC panel outlet is available
• General 12V accessory control and charging in damp or splash-prone installations

Product Details

• Part number: 4365
• Brand: Blue Sea Systems
• Product type: water-resistant accessory panel
• Circuit breaker: illuminated Carling Technologies 15A circuit breaker switch
• Charging: 12V socket plus 2 x 2.1A dual USB chargers
• Water-resistant protection: silicone breaker boots and panel gasket
• Panel face material: polycarbonate/ABS, UV-stabilized, flame retardant, non-corroding
• Wiring: pre-wired harness included
• Electrical system: 12V DC only

Technical FAQ

Does this panel include a circuit breaker? Yes. It has an illuminated 15A circuit breaker switch, so you can shut the panel off and prevent parasitic draw on the battery.

What can it charge and power? The panel provides a 12V socket and two USB chargers rated at 2.1A each, for phones, tablets, and other small 12V devices.

Is the panel fully waterproof? It is water-resistant, not fully waterproof. Silicone breaker boots and a panel gasket help protect against water ingress when the panel is installed with the gasket correctly seated.

Does it need extra wiring? A pre-wired harness is included in the panel for easy installation.

What voltage does it support? 12V DC only. Do not connect the panel to a 24V DC system.

Related Products

• Blue Sea Systems 4363 — the same panel family with a USB charger and 12V socket, in a different configuration.
• Blue Sea Systems 4364 — the water-resistant panel with a 15A breaker and two blank apertures instead of a socket and USB chargers.
• Blue Sea Systems 4366 — the same panel family with a USB charger, 12V socket, and a voltmeter.
• Blue Sea 4321 — a larger water-resistant 4-position breaker switch panel with a 12V socket and dual USB charger.
• Vertex Dual USB-A & USB-C 12V Power Socket — a single-socket charging option with a different connector layout.
• Marinco Combo Dual USB & 12V Socket — a single-socket charging option with a different connector layout.

Parts Desk Insights

Best use case: Replacing or upgrading a compact dashboard or console accessory area with one panel that provides protected switch control, a 12V outlet, and dual USB charging for phones and tablets.

Most common customer mistake: Assuming the panel is fully waterproof. Water-resistant protection depends on the panel gasket and breaker boots being correctly seated during installation, so take care with sealing when mounting the panel. The panel is also 12V DC only and must not be connected to a 24V system.

Sizing and fitment guidance: Check the available cutout space and mounting depth at your dash before ordering, and confirm the panel is being fed from a 12V DC circuit. If you are replacing an older panel, compare the number of apertures and the breaker rating so the replacement matches the accessories you plan to keep connected.