Description
Victron Galvanic Isolator VDI-16A | Boat Supply Store
Protect critical underwater metal components from damaging electrolytic corrosion. This unit effectively blocks low-voltage DC currents originating from shore power earth connections, preventing the destructive electrochemical process that degrades propellers, shafts, and hull fittings. Utilizing advanced diode technology with a conduction threshold of approximately 1.4 Vdc, it allows for safe passage of essential AC safety grounding currents while intercepting stray DC potentials. Its robust, waterproof potted construction ensures reliable operation in harsh marine environments, making it indispensable for vessels frequently connected to shore power, from cruising yachts on the Gulf Coast to sportfishing boats in the Florida Keys.
Key Features
- Prevents electrolytic corrosion of vital underwater metals.
- Blocks destructive low-voltage DC currents from shore power earth.
- Utilizes advanced dual diodes in an anti-parallel configuration.
- Conducts current safely above a threshold voltage of approximately 1.4 Vdc.
- Offers robust, completely waterproof potted construction.
- Handles up to 16 AMP maximum continuous current.
- Ensures longevity of propellers, shafts, and hull fittings.
- Integrates seamlessly with standard marine shore power systems.
Specifications
| Product Specifications | |
|---|---|
| Maximum Current Rating | 16 AMP |
| Construction | Waterproof potted |
| Diode Configuration | Two diodes in anti-parallel |
| Conduction Threshold Voltage | Approximately 1.4 Vdc |
Who This Is For
Boat owners who connect to shore power and are concerned about or experiencing electrolytic corrosion on their boat's underwater metal components, such as hull, propeller, or shaft.
How It Compares
| Feature | Victron Galvanic Isolator VDI-16A | Competitor |
|---|---|---|
| Amperage Rating | 16 AMP | 30 AMP |
| Waterproof | Yes (Potted) | Yes |
| Diode Configuration | Dual diode (anti-parallel) | Dual diode |
| Conduction Threshold Voltage | ~1.4 Vdc | ~1.4V |
Common Concerns Answered
Is the 16 AMP rating sufficient for all boats?
The 16 AMP rating is suitable for many common shore power systems. However, for vessels utilizing very high-demand shore power systems, a higher amperage rated isolator might be necessary; consult your electrical system specifications.
What if I'm not comfortable with electrical work?
Installation requires a basic understanding of AC electrical systems and strict adherence to wiring diagrams. For those unfamiliar with marine electrical work, professional installation is strongly recommended to ensure safety and proper function.
Is this isolator more expensive than other options?
While the initial cost may be a consideration compared to simpler, non-waterproof solutions, the Victron VDI-16A's robust, waterproof potted design and advanced diode technology offer superior long-term protection and reliability, justifying the investment for critical corrosion prevention.
Frequently Asked Questions
What is a galvanic isolator and why do I need one?
A galvanic isolator is a safety device installed in the shore power ground circuit that prevents the flow of galvanic currents between your boat and shore power, thereby stopping electrolytic corrosion of your boat's underwater metal components. You need one if your boat is connected to shore power to protect its metal parts from rapid degradation.
How does the Victron Galvanic Isolator VDI-16A prevent corrosion?
It prevents corrosion by blocking the flow of low-voltage DC currents that cause electrolysis. It uses two diodes in an anti-parallel configuration, which conduct current only when the voltage difference exceeds approximately 1.4 Vdc, thus isolating your boat's metals from the galvanic potential of the shore ground.
What is the maximum amperage rating for the Victron VDI-16A?
The Victron Galvanic Isolator VDI-16A has a maximum current rating of 16 AMP.
Is the Victron VDI-16A waterproof?
Yes, the Victron VDI-16A features a completely waterproof potted construction, making it highly durable and reliable for use in the demanding marine environment.
Where should the Victron VDI-16A be installed on my boat?
The VDI-16A should be installed in series with the shore power grounding conductor, typically near the boat's main electrical panel or where the shore power cord connects to the vessel's internal wiring. Always refer to the manual for specific wiring diagrams and installation guidelines.
