Transformers & Galvanic Isolators

Safeguard Your Marine and Off-Grid Electrical Systems

When connecting your boat or RV to shore power or managing complex off-grid voltage requirements, safety and stability are critical. Our comprehensive range of Victron energy management solutions ensures your electrical circuits remain isolated, protected, and correctly balanced. Whether you are mitigating the risk of rapid hull corrosion on a marine vessel or balancing a split-phase output for a high-capacity off-grid build, these robust components deliver long-term reliability.

Galvanic Isolators for Boats

A high-quality galvanic isolator is essential for any vessel connecting to marina shore power. When you plug into a shore supply, your boat's earth is connected to the marina's earth network. This shared connection can cause a low-voltage DC loop, leading to rapid, destructive galvanic corrosion of your hull, propellers, and zinc anodes. Installing a Victron galvanic isolator blocks these damaging DC currents while maintaining the critical AC safety earth connection, drastically extending the life of your underwater metal components. It represents a sensible investment that prevents significant wear on your essential hardware.

Isolation Transformers

An isolation transformer provides an absolute physical separation between your incoming shore supply and your onboard electrical network. This completely eliminates the electrical continuity between the two systems, preventing stray currents and offering the ultimate protection against galvanic corrosion. Furthermore, models like the Victron 115/230V and 240V isolation transformers can safely convert voltage levels, ensuring seamless compatibility when travelling internationally or connecting to varied or unpredictable marina supplies.

Autotransformers

For advanced off-grid and heavy-duty RV builds, autotransformers are used to step up, step down, or split electrical phases. A Victron autotransformer can seamlessly balance the load across a 120/240V split-phase system, allowing you to run powerful 240V appliances alongside standard 120V loads without overloading a single leg of your inverter system. Balancing these loads is crucial for system stability and preventing nuisance tripping.

Why Invest in High-Quality Power Isolation?

Implementing proper power conversion and isolation provides significant technical and financial advantages for your mobile electrical setup:

• Corrosion Prevention: Block harmful DC loops that aggressively dissolve expensive marine hardware and sacrificial anodes.
• Electrical Safety: Create a safer onboard environment by fully isolating the vessel or vehicle from unpredictable campground or shore power faults.
• Voltage Flexibility: Seamlessly adapt to different regional power supplies, accepting 115V or 230V inputs depending on the specific transformer model.
• Load Balancing: Maximise the efficiency of your power system by evenly distributing heavy loads across split-phase setups.

Common use cases for caravan, RV, marine, 4WD, off-grid, tiny home, commercial, industrial, boats, or truck shoppers

Marine & Boats: Essential for yachts and cruisers connecting to marina shore power pedestals. A galvanic isolator or isolation transformer is critical to stop stray DC currents from dissolving your sacrificial anodes and expensive underwater running gear.

Off-Grid & Tiny Homes: Utilising autotransformers to manage complex split-phase systems, ensuring large household appliances receive stable 240V power while 120V circuits remain perfectly balanced and safe to use.

Caravans & RVs: Protecting sophisticated onboard electronics, such as your inverter chargers and deep cycle battery banks, from fluctuating or poorly earthed campground power supplies.

As an Australian family business with a decade of experience, we pride ourselves on delivering high quality products, fast dispatch, and comprehensive before and after support. Every electrical setup is unique, and choosing the correct isolation method is vital for the longevity of your investment. Browse our premium selection of isolation transformers, autotransformers, and galvanic isolators below and upgrade your electrical system today for unparalleled safety and peace of mind.