Victron Energy Galvanic Isolator VDI-64 A – GDI000064000

The galvanic isolator prevents electrolytic corrosion. It blocks low voltage DC currents that enter your boat via the shore power earth wire. These currents can cause corrosion to the boat’s underwater metals, like the hull, propeller, shaft and so on.
The galvanic isolator consists internally of two diodes which are connected in anti-parallel fashion. When they are connected in this way, the diodes allow current in both directions but only above a certain threshold voltage. The voltage at which diodes conduct is about 1.4 Vdc.

The isolator is installed directly behind your boat’s 230V connection. The forward voltage from the galvanic isolator is higher than the potential difference between metals. As a result, this voltage will not allow conduction and as such, the galvanic isolator will prevent any electrolytic current. However, if there is a (higher) error voltage in the AC circuit, the diodes will allow current through and the residual-current device will break the circuit.

The Victron Galvanic Isolator VDI-64 A effectively safeguards your boat’s AC electrical system by blocking electrolytic currents that can lead to corrosion. Featuring two diodes arranged in an anti-parallel fashion, this isolator only allows current to flow when the voltage exceeds the threshold of approximately 1.4 Vdc, providing protection for metal parts from harmful electrolysis.

Installed directly behind your boat’s 230V AC connection, it ensures that the forward voltage from the isolator is higher than the potential difference between metals, preventing unwanted conduction.

In the event of a higher error voltage in the AC circuit, the diodes permit current to pass through, causing the residual-current device to safely disconnect the circuit. With its robust IP67 protection rating, this isolator is built to endure harsh marine environments and is backed by a 5-year warranty, ensuring long-term reliability and performance.

• Protects against electrolytic corrosion by blocking harmful galvanic currents.
• Dual diodes connected in anti-parallel allow current above the threshold voltage of 1.4 Vdc.
• Easy installation behind the boat’s 230V AC connection.
• Prevents damage to metal components by ensuring voltage is higher than the potential difference between metals.
• IP67 protection guarantees durability in challenging marine conditions.
• 5-year warranty for added peace of mind.

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