Victron Galvanic Isolator VDI-32, Anti-Corrosion Device for Boats, Prevents Electrolytic Corrosion from Low Voltage DC Current

Overview

Low voltage DC current entering a boat through the shore power earth wire can corrode underwater metals such as the hull, propeller, and shaft. The Victron Galvanic Isolator VDI-32 is designed to block that current and help prevent electrolytic corrosion.

Key benefits

• Protects underwater metals by blocking low voltage DC current that causes electrolytic corrosion.
• Compact unit fitted directly behind the boat's 230V connection.
• If a higher fault voltage occurs in the AC circuit, current can flow so the residual-current device breaks the circuit.

Key features

• Two diodes connected in antiparallel
• Conducts in either direction only above a threshold of approximately 1.4 Vdc
• Forward voltage exceeds the potential difference between metals, preventing electrolytic current
• Works with a residual-current device for fault protection

Ideal use

For boats connected to shore power, installed behind the 230V shore connection.

Key specifications

Model / SKU

GDI000032000

Brand

Victron Energy

Category

Accessories

Voltage

4Vdc

From the manufacturer

Reliable Corrosion Protection with the Victron Galvanic Isolator VDI-32 Ensure the longevity and performance of your boat by investing in the Victron Galvanic Isolator. Designed to prevent electrolytic corrosion, this advanced device effectively blocks low voltage DC currents that can enter your boat via the shore power earth wire, safeguarding your vessel’s underwater metals such as the hull, propeller, shaft, and more. How Does It Work? The Victron Galvanic Isolator features a clever internal configuration consisting of two diodes connected in antiparallel fashion. This setup allows current to flow in both directions, but only above a specific threshold voltage of approximately 1.4 Vdc. The galvanic isolator, with its innovative design, effectively blocks harmful currents that may lead to electrolytic corrosion while allowing only harmless currents to pass through. Key Features: Robust Corrosion Protection: The galvanic isolator acts as a reliable barrier against low voltage DC currents that can cause corrosive damage to your boat’s underwater metals. Seamless Installation: This isolator is conveniently installed directly behind your boat’s 230V connection, making it easily accessible. Foolproof Operation: The forward voltage of the galvanic isolator exceeds the potential difference between metals, preventing conduction and thereby neutralizing any electrolytic current. Additionally, in the event of a higher error voltage in the AC circuit, the diodes within the isolator will allow current to flow, triggering the residual-current device to break the circuit. Installation Made Easy Installing the Victron Galvanic Isolator is a breeze. You can seamlessly integrate this compact device into your power system by placing it conveniently behind your boat’s 230V connection. Its forward voltage surpasses the potential difference between metals, effectively preventing conduction and eliminating electrolytic currents. Should an error voltage occur, the diodes will allow the current to flow and the residual-current device will break the circuit. Enhanced Safety Measures If there’s a higher error voltage in the AC circuit, the diodes within the isolator allow current to pass through. However, thanks to the presence of a residual-current device, the circuit is promptly broken, ensuring protection against any potential hazards. With the Victron Galvanic Isolator, you can trust that your boat’s electrical system remains secure and reliable.

Warranty terms mentioned in this description are the manufacturer’s. Our own coverage is the 30-day limited warranty.

Before you order

We confirm compatibility, installation requirements, and delivery details with you during order review, before any payment. Home electrical work may require a qualified installer.

Ask our team whether the VDI-32 galvanic isolator suits your boat's shore power setup. Message our team on WhatsApp.