The Victron Galvanic Isolator VDI-32A protects boats from shore-power–induced galvanic currents, safeguarding underwater metals and minimizing corrosion-related maintenance. Designed for vessels with 120V–230V shore power, it offers rugged, reliable protection that’s easy to install directly behind the shore connection.
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Maximum current rating: 32A max, providing protection across a wide range of boats.
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Waterproof enclosure (potted): rugged, designed to withstand harsh marine environments.
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Protects underwater metals: guards hull, propeller, and shaft from electrolytic corrosion caused by shore-power currents.
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Anti-parallel diodes: conduct only when voltage exceeds ~1.4 Vdc, preventing conduction at normal metal potential differences.
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Installation location: installed directly behind the boat's 120V–230V connection for immediate protection.
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Wiring connections: robust 6 mm (1.4") terminal posts for secure wiring.
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AC fault handling: AC error voltage causes diode conduction only if a higher error voltage occurs, at which point the residual-current device trips the circuit.
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Compliance note: Not ABYC A-28 approved (documentation note).
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Manufacturer and part: Victron Energy — Part No GDI000032000.
By blocking shore-power–induced galvanic currents, the isolator helps preserve underwater components and reduce maintenance downtime. Its rugged, waterproof design, straightforward behind-the-connection installation, and compatibility with 120V–230V shore power make it a practical, long-term protection solution for boats operating in challenging marine environments.
