Blue Sea Systems 4363 Accessory Panel, 15A Circuit Breaker, 12V Socket, 2.1A Dual USB Charger

The Blue Sea Systems 4363 is a water-resistant accessory panel that combines a 15A illuminated circuit breaker, a 12V socket, and a 2.1A dual USB charger in a single compact housing. It is built for boats and other marine applications where reliable, splash-protected power access is needed at the helm or in a cabin. The panel carries an IP66 rating, meaning it is protected against powerful water jets, making it suitable for exposed or wet locations onboard.

The panel face is made of polycarbonate/ABS that is UV-stabilized and flame retardant so it resists corrosion and sun damage over time. A silicone breaker boot and gasket seal the switch and panel body against water ingress. The 15A circuit breaker uses an illuminated Carling Technologies switch, letting the operator visually confirm power status and shut the panel off to prevent parasitic battery draw when not in use. A pre-wired harness is included with the panel for straightforward installation, and the unit runs on 12V DC.

This panel is part of the Blue Sea Systems accessory panel lineup, which shares a common width, height, and depth format across variants with different breaker, socket, USB, and voltmeter combinations, allowing panels to be mixed and matched within the same mounting footprint.

Specifications

• Brand: Blue Sea Systems
• Manufacturer Part Number: 4363
• Description: 15A Circuit Breaker, 12V Socket, 2.1A Dual USB Charger
• Width: 4.94 inches (125.4 mm)
• Height: 2.25 inches (57.2 mm)
• Depth: 2.53 inches (64.3 mm)
• Voltage: 12V DC
• Circuit Breaker Rating: 15A
• USB Output: 2.1A Dual USB Charger
• Ingress Protection Rating: IP66
• Material: Polycarbonate/ABS
• Weight: 0.4 pounds
• Included Components: Panel, pre-wired harness, instructions

Frequently Asked Questions

What does the Blue Sea Systems 4363 panel include? It combines a 15A illuminated circuit breaker, a 12V socket, and a 2.1A dual USB charger in one panel, and comes with a pre-wired harness and instructions included.

Is the 4363 panel waterproof? It is IP66 rated, meaning the Blue Sea Systems 4363 panel is protected against powerful water jets, which suits it to exposed helm or cockpit locations.

What voltage does the 4363 panel run on? The panel operates on 12V DC.

What are the dimensions of the 4363 accessory panel? The Blue Sea Systems 4363 measures 4.94 inches (125.4 mm) wide, 2.25 inches (57.2 mm) high, and 2.53 inches (64.3 mm) deep.

How much does the 4363 panel weigh? It weighs 0.4 pounds.

What material is the panel face made from? The panel face on the 4363 is polycarbonate/ABS that is UV-stabilized and flame retardant, so it resists corrosion and sun exposure.

Does the 4363 panel help prevent battery drain? Yes, the illuminated Carling Technologies 15A circuit breaker switch on the 4363 can be shut off to prevent parasitic draw on the battery when the panel is not in use.

How is water kept out of the switch on the 4363 panel? A silicone breaker boot and gasket seal the circuit breaker switch and panel body against water ingress.

Is a wiring harness included with the 4363? Yes, a pre-wired harness is included with the Blue Sea Systems 4363 panel for easier installation.

How many USB ports does the 4363 panel have? The 4363 has a dual USB charger rated at 2.1A, alongside the 12V socket and 15A circuit breaker.

Is the 4363 CE certified? No, CE certification applies to the related 4364, 4367, and 4369 panels only, not to the 4363.

What is the circuit breaker rating on the 4363? The 4363 uses a 15A illuminated circuit breaker switch.