Description
Blue Sea 8521 Switch Panel w/USB | Boat Supply Store
For vessels requiring integrated DC circuit management and high-speed charging, this panel provides a robust solution. It features five Contura switches, each rated for 20A at 12V or 15A at 24V DC, alongside dual USB chargers delivering a combined 4.8A with intelligent device recognition. The watertight mounting gasket ensures reliable operation in exposed marine environments, making it suitable for flybridge or open-cockpit applications.
Key Features
- Consolidate up to 5 DC circuits with individual control.
- Charge mobile devices rapidly via dual 4.8A USB ports.
- Ensure reliability with intelligent USB device recognition.
- Verify circuit status with integrated ON indicating LEDs.
- Protect against the elements with a watertight mounting gasket.
- Operate across standard marine voltages (12/24V DC).
- Install with confidence using Contura switches for durability.
- Maintain a clean installation with a compact, all-in-one unit.
Specifications
| Product Specifications | |
|---|---|
| Number of Positions | 5 |
| USB Charger Amperage | 4.8A (Total) |
| Voltage Compatibility | 12/24V DC |
| Switch Rating (12V) | 20A |
| Switch Rating (24V) | 15A |
| Switch Type | Contura |
| Indicators | ON LEDs |
| Mounting Gasket | Watertight |
| Dimensions (H x W x D) | 7.5" x 4.5" x 3.25" |
Who This Is For
Boat owners and marine technicians seeking a compact, integrated electrical control and charging solution for exposed marine environments like flybridges or open cockpits. It is ideal for those needing to manage multiple DC circuits while ensuring modern devices can be charged quickly.
How It Compares
| Feature | Blue Sea 8521 Switch Panel w/USB | Competitor |
|---|---|---|
| Number of Switches | 5 | 6, 6 |
| Integrated USB Chargers | Dual USB (4.8A total) | None, Dual USB |
| Voltage Compatibility | 12/24V DC | 12/24V DC, 12-24V DC |
| Switch Type | Contura | Contura, Toggle |
| Waterproof Gasket | Yes | Yes (IP66 with proper installation), Yes |
Common Concerns Answered
Is this panel a good value for the price?
While the Blue Sea 8521 represents a higher initial investment compared to non-marine grade alternatives, its robust construction, watertight design, and integrated high-amperage USB charging offer superior longevity and functionality in harsh marine conditions. This cost reflects its specialized engineering for saltwater environments and reliable performance.
Will this panel handle all my electrical needs?
The Blue Sea 8521 features 5 switch positions, ideal for managing essential DC circuits. If your electrical system is exceptionally complex and requires more than five individual controls, you may need to consider a panel with additional switch positions. However, for most common applications, this panel provides comprehensive control and charging.
What makes this panel suitable for marine use?
This panel is engineered specifically for the marine environment. It includes a watertight mounting gasket to prevent ingress of water and spray, utilizes durable Contura switches designed for marine vibration and use, and operates reliably on 12/24V DC systems, ensuring it withstands the demanding conditions found on any vessel.
Frequently Asked Questions
What is the voltage compatibility of the Blue Sea 8521 switch panel?
The Blue Sea 8521 switch panel is compatible with both 12V DC and 24V DC marine electrical systems.
How many switches does the Blue Sea 8521 panel have?
The Blue Sea 8521 panel features 5 individual Contura switch positions.
What is the amperage rating for the USB chargers on the Blue Sea 8521 panel?
The dual USB chargers on the Blue Sea 8521 panel provide a combined total output of 4.8A, with intelligent device recognition to optimize charging speed.
Is the Blue Sea 8521 panel waterproof?
The Blue Sea 8521 panel includes a watertight mounting gasket, designed to ensure a seal against the elements when properly installed, protecting the electrical components from moisture.
What are the dimensions of the Blue Sea 8521 switch panel?
The dimensions of the Blue Sea 8521 switch panel are 7.5 inches in height, 4.5 inches in width, and 3.25 inches in depth.
