Victron 64A VDI-64 Galvanic Isolator
Victron 64A VDI-64 Galvanic Isolator
IP67 Waterproof Galvanic Isolator – Blocks Corrosive DC Currents, 64 A Continuous, 6000 A Peak
Highlights:Shore Terminal: Heavy-duty terminal for connection to shore power earth,Aluminium Heatsink: Ribbed housing design for effective thermal management and heat dissipation,Mounting Slots: Integrated slots for secure mounting to flat surfaces or bulkheads,Ship Connection: Designated terminal area for connecting to the vessel ground network.
Technical wiring diagram illustrating the electrical integration of a galvanic isolator between the shore power supply and the vessel's internal AC distribution network to prevent corrosion. 
DESCRIPTION
Victron Galvanic Isolator: Advanced Electrolytic Corrosion Protection for Marine Vessels
Engineered to Block Stray DC Currents and Preserve Underwater Metals
The Victron Galvanic Isolator is a critical component for any vessel connected to shore power, designed to prevent electrolytic corrosion of underwater metals such as the hull, propeller, shaft, and through-hull fittings. By installing this device in series with the protective earth conductor between the shore supply and the boat's grounding system, you effectively block low-voltage DC galvanic currents that would otherwise flow through the water, causing accelerated corrosion. Unlike generic isolators that may fail under fault conditions, the Victron unit uses robust internal diodes in an anti-parallel configuration, ensuring reliable isolation during normal operation while automatically conducting during AC fault currents to maintain safety.
How It Works: Reliable Diode-Based Isolation
At the core of the Victron Galvanic Isolator are high-capacity diodes that block DC voltages up to approximately 1.4 V. This threshold is higher than the naturally occurring potential differences between dissimilar underwater metals, effectively stopping corrosive currents. In the event of an AC fault, the diodes conduct, allowing the fault current to flow and trip the upstream residual-current device (RCD) or circuit breaker, ensuring personal safety and compliance with marine electrical standards. The fully potted, waterproof construction (IP67) protects internal electronics from moisture, salt spray, and condensation, making it suitable for installation in engine rooms, lazarettes, and other harsh marine environments.
Key Features
- Blocks galvanic corrosion currents – Prevents DC leakage via the shore earth connection, protecting underwater metals
- High peak current withstand – Handles transient fault currents up to 6000 A (20 ms), ensuring durability during short circuits
- Continuous current rating – Supports up to 64 A, matching typical shore power demands
- IP67 waterproof and fully potted – Resistant to moisture ingress, ideal for marine and coastal installations
- Anodised aluminium heat sink – Passive cooling design dissipates heat efficiently, no fans required
- Simple two-stud connection – M6 (approx. 1/4") stud terminals for secure, low-resistance wiring
- Compact and robust – Dimensions 63 x 164 x 335 mm, weight 3.2 kg, with integrated mounting slots
- Compliant with marine standards – Meets relevant safety and EMC requirements for onboard use
Why Choose a Victron Galvanic Isolator?
Many boat owners underestimate the risk of galvanic corrosion until costly damage appears. A shore power connection, while convenient, creates a conductive path between your vessel and neighbouring boats or the marina's metal structures. Without isolation, even small DC voltages can drive destructive currents through the water. The Victron Galvanic Isolator breaks this path for DC while preserving the safety earth for AC faults. Its robust design, with a peak current rating far exceeding typical fault levels, ensures it will not fail when needed most. The anodised aluminium enclosure provides excellent heat dissipation, maintaining performance even under sustained high currents. Installation is straightforward: mount the isolator close to the shore power inlet, connect the shore earth to one stud and the boat's earth to the other, and secure the wiring with appropriate lugs. No ongoing maintenance is required.
Applications
This galvanic isolator is suitable for a wide range of vessels, from small pleasure craft to larger yachts and commercial boats, wherever a shore power connection is used. It is particularly valuable in marinas with high electrical activity, where stray currents are common. Whether you are fitting out a new build or retrofitting an existing electrical system, the Victron Galvanic Isolator provides peace of mind by protecting your investment against hidden corrosion.
Note: For optimal protection, ensure your vessel's anodes are in good condition and regularly inspected. The galvanic isolator works in conjunction with, not as a replacement for, sacrificial anodes.
Secure Your Vessel's Underwater Metals Today
Don't let electrolytic corrosion compromise your boat's integrity. Install a Victron Galvanic Isolator and sail with confidence, knowing your underwater metals are protected. Order now or contact our team for expert advice on integrating this essential device into your marine electrical system.
SPECIFICATIONS
Specifications
| Galvanic Isolator | Waterproof (Potted) |
|---|---|
| Maximum Current | 64 A |
| Peak Current (20 ms) | 6000 A |
| Connection | M6 |
| Heat Sink Material | Anodized Aluminium |
| Protection Category | IP 67 |
| Weight | 3.2 kg |
| Dimensions (H x W x D) | 63 x 164 x 335 mm |
| Voltage At Which Diodes Conduct | About 1.4 Vdc |
| SKU: | VIC-GDI000064000 |
| Barcode: | 8719076048107 |
| Model #: | GDI000064000 |
| MPN: | GDI000064000 |
WARRANTY
Victron Energy Limited Warranty Policy
Direct Customers
Victron Energy provides the following warranty to any direct customer (OEM, distributor or dealer) in relation to any products that Victron Energy has directly sold to the direct customer. This warranty is not an end-user warranty between Victron Energy and an end-user, and end-users shall not have any rights or remedies under this limited warranty towards Victron Energy directly. The direct customer shall, in turn, ensure that the end-user is provided with a warranty identical to this warranty, subject to applicable local mandatory law.
End-Users
Victron Energy may also provide a warranty directly to end-users, in which case the below warranty conditions equally apply to such warranty. In that case, end-users shall claim their warranty at their place of purchase or through the original direct customer of Victron, which can be found through the support section on Victron’s website. Hence, the direct customer shall on behalf of Victron Energy deal with any warranty claims made under any warranty that Victron Energy may provide directly to end-users. This support section on Victron’s website will provide further guidance on the procedure for end-users to make a claim under this limited warranty.
If the end-user is a consumer – a natural person who is acting for purposes which are outside that person's trade, business, craft or profession – the following applies. The rights and remedies granted to the consumer under this limited warranty are without prejudice to the consumer’s statutory rights. Furthermore, the consumer is entitled by law to remedies from the seller free of charge in the event of a lack of conformity of the goods (such as repair, replacement, price reduction or rescission), which remedies are not affected by this limited warranty.
Warranty
Victron Energy warrants its products to be free from defects in workmanship and materials for a period of 5 years from the date of purchase by the original end-user, with a maximum of 66 months from the Victron Energy invoice date. Exceptions on this are: lead-acid batteries: 2 years from date of purchase by the original end-user, with a maximum of 30 months from the Victron Energy invoice date, Lithium batteries: 3 years from date of purchase by the original end-user, with a maximum of 42 months from the Victron Energy invoice date. In addition to this, proof of correct battery usage is required when making a battery warranty claim.
For a 10% surcharge on the current net price for products that came with a 5-year warranty, an additional 5 years of warranty can be purchased by Victron’s direct customers, bringing the total warranty to 10 years. Warranty extensions need to be applied for ultimately one year before the expiration of the original term. Victron may ask proof that the product was still functional at the time of purchase of the extended warranty.
During the warranty period, Victron Energy will, at its discretion, repair, replace or (partly) credit the defective product free of charge. The warranty does not include performing or reimbursing de‐installation, transportation, and re‐installation.
This warranty will be considered void if the unit has suffered any physical damage or alteration, either internally or externally, and does not cover damages arising from improper use like:
- Reversed battery polarity.
- Inadequate connection.
- Mechanical shock or deformation.
- Contact with liquid or oxidation by condensation.
- Use in an inappropriate environment (dust, corrosive vapour, humidity, high temperature, biological infestation, etc.).
- Breakage or damage due to lightning.
- Connection terminals and screws destroyed or other damages, like overheating, due to insufficient tightening.
- For any electronic breakage except due to lightning (reverse polarity, over‐voltage due to external cause), the state of the internal control diode and/or the input/output X and Y capacitors determine the warranty.
This warranty will not apply where the product has been misused, neglected, improperly installed, or repaired by anyone other than Victron Energy or one of its authorized Repair Centres. In order to qualify for the warranty, the product must not be disassembled or modified.
This warranty and our warranty obligations thereunder (repair, replacement or credit) are the direct customer’s and, if applicable, the end-user’s sole rights and remedies and our sole obligations with respect to any defective and/or non-conforming product or breach of warranty and is subject to and without prejudice to the limitations of liability in this warranty.
Victron Energy shall not be liable for damages, whether direct, incidental, special, or consequential, even caused by negligence or fault.
As a product requires service, it must be brought back to the place of purchase. In case no contact can be made with the merchant, or if he is either unable or not allowed to provide service, direct contact should be made with Victron Energy through the support section on Victron’s website.
In case Victron Energy replaces a product, it will own the replaced product. Victron Energy owns all parts removed from repaired products. Victron Energy uses new or reconditioned parts made by various manufacturers when performing warranty repairs or building replacement products.
If Victron Energy repairs or replaces a part of a product, its warranty term is not extended: the warranty will apply for the remaining term of the original warranty term. For example, if Victron Energy replaces a product with a 5-year warranty after 3 years, the warranty of this product will apply for another 2 years, with a minimum of 6 months.
All remedies and the measure for damages are limited to the above. Victron Energy shall in no event be liable for consequential, incidental, contingent or special damages, even if having been advised of the probability of such damages.
The foregoing limited warranty provided by Victron Energy is in lieu of any other warranties, express or implied arising by law, course of dealing, course of performance, usage of trade or otherwise, of any kind whatsoever including, without limitation, warranties of merchantability or fitness for a particular purpose, with respect to any product. The above is without prejudice to the arrangement for consumers detailed above.
Life Support Policy
As a general policy, Victron Energy does not recommend the use of any of its products in life support applications where failure or malfunction of Victron Energy's product can be reasonably expected to cause the failure of the life support device or to significantly affect its safety or effectiveness. Victron Energy does not recommend the use of any of its products in direct patient care. Victron Energy will not knowingly sell its products for use in such applications unless it receives in writing assurances satisfactory to Victron Energy that the risks of injury or damage have been minimized, the customer assumes all such risks, and the liability of Victron Energy is adequately protected under the circumstances.
Warranty on repairs for products outside their warranty period
The warranty period on products that are outside their warranty period and have been repaired by Victron Energy or one of the Victron Energy Repair centres is six (6) months from delivery. The same applies to spare parts and circuit boards that have been supplied or repaired by Victron Energy.
Transport
It is the responsibility of the sender to sufficiently package these products. The transport must be organized in a way to avoid any damage, especially when a single unit or heavy unit is sent.
Severability
If a part of the terms and conditions of this warranty is held invalid, void or unenforceable due to any particular national or international legislation, it shall not affect other parts of the terms and conditions of this warranty.
Applicable law
This warranty is exclusively governed by the laws of the Netherlands, to the exclusion of the UN Convention on Contracts for the International Sale of Goods.














































