Victron Energy Galvanic Isolator VDI-16, VDI-32 and VDI-64

The Victron Energy Galvanic Isolator VDI series (VDI-16, VDI-32 and VDI-64) is a critical marine and shore-power protection device designed to prevent electrolytic (galvanic) corrosion in boats and marine installations. It safeguards underwater metal components such as hulls, propellers, shafts and rudders by blocking harmful low-voltage DC currents that can enter through the shore power earth connection.

Engineered to Victron Energy’s renowned European quality standards, the VDI range offers reliable corrosion protection without compromising electrical safety—making it ideal for both commercial and private marine users.

Features & Benefits

• Prevents electrolytic (galvanic) corrosion by blocking low-voltage DC currents entering through the shore power earth connection
• Protects underwater metal components such as hulls, propellers, shafts and rudders, extending their service life
• Uses solid-state anti-parallel diode technology with a conduction threshold of approximately 1.4 V DC for reliable corrosion prevention
• Allows high fault currents to pass instantly, ensuring full operation of RCD and other safety protection devices
• Installs directly behind the 230V shore power inlet for simple, inline integration
• Available in 16A, 32A and 64A models to suit small boats, yachts and large commercial vessels
• Maintenance-free design with no moving parts, reducing long-term ownership costs
• Compact, robust construction suitable for harsh marine environments
• Manufactured by Victron Energy, a globally trusted brand in marine and off-grid power solutions
• Ideal for saltwater and marina environments common along the Tanzanian coastline

Use Cases

• Private yachts and sailing boats : Protect hulls, propellers, and shafts from electrolytic corrosion during shore power connection.
• Fishing boats and commercial vessels : Ensure long-term durability of underwater metals in harsh marine environments.
• Houseboats and floating structures : Maintain structural integrity by preventing galvanic currents from causing metal degradation.
• Marina-connected vessels : Ideal for boats regularly plugged into shared shore power systems, especially in saltwater marinas.
• Coastal and inland watercraft : Provides reliable protection for vessels operating in both freshwater and saltwater environments.
• Tourism and charter boats : Reduces maintenance costs and downtime for boats used in tours, diving, or passenger transport.

Value Propositions

• Protects underwater metals : Prevents electrolytic corrosion of hulls, propellers, shafts, and other submerged components.
• Reduces maintenance costs : Minimises expensive repairs caused by galvanic corrosion over time.
• Ensures electrical safety : Solid-state diodes allow fault currents to pass, activating RCD protection when needed.
• Long-lasting and reliable : Maintenance-free design with no moving parts ensures years of dependable performance.
• Easy installation : Compact and robust, designed to be installed directly behind the shore power inlet.
• Trusted brand : Backed by Victron Energy’s reputation for quality, durability, and marine expertise.
• Optimised for Tanzanian waters : Ideal for boats exposed to saltwater or shared marina power systems along the East African coast.

Local Market Positioning in Tanzania

• Ideal for boats operating in saltwater environments along the Tanzanian coast, including Dar es Salaam, Zanzibar, and Tanga.
• Protects private yachts, sailing boats, fishing vessels, houseboats, and commercial marine fleets from costly galvanic corrosion.
• Suitable for tourism operators, dive boats, and charter fleets that rely on shore power connections.
• Addresses the challenges of shared marina power systems where stray DC currents are common.
• Enhances longevity of underwater metals like hulls, propellers, and shafts, reducing maintenance and repair costs.
• Trusted Victron Energy quality, widely recognised in East Africa for durability and reliability in marine electrical systems.
• Perfect for marinas and marine service providers offering high-quality electrical safety solutions.

Technical Specification