SKU:82997
Isolation Transformer - 2000W - 115/230 VAC
Safety and prevention of galvanic corrosion The Isolation Transformer eliminates any electrical continuity between AC shore power and the boat. It is essential for safety and eliminates the need for galvanic isolators and polarity alarms.
Safety is taken for granted in case of a normal on-shore installation. A fuse will blow or a GFCI (Ground Fault Current Interrupter) will trip in case of a short circuit or current leakage to ground. Connecting the ground wire of the shore-side supply to the metal parts of the boat will result in galvanic corrosion (see below). Bringing only the live and neutral wire on board results in an unsafe situation because GFCIs will not work nor will a fuse blow in case of a short circuit to a metal part on the boat.
Galvanic corrosion occurs when two dissimilar metals in electrical contact are simultaneously exposed to an electrically conducting fluid. Seawater and, to a lesser extent, fresh water are such fluids. In general, the more active alloy of the couple corrodes preferentially while the less active (more noble) material is cathodically protected. The rate of galvanic corrosion is a function of several variables including area ratios, conductivity of the fluid, temperature, nature of the materials, etc.
It is a misunderstanding that galvanic corrosion occurs only in metal and aluminium hulls. In fact it can occur on any boat as soon as a metallic part (the shaft and propeller) is in contact with water. Galvanic corrosion will quickly dissolve your sacrificial anodes, and attack the shaft, propeller and other metal parts in contact with water as soon as the boat is connected to the shore-side supply. It might therefore be tempting not to connect the ground conductor: this is however extremely dangerous because GFCIs will not work nor will a fuse blow in case of a short circuit to a metal part on the boat.
The best solution to avoid galvanic corrosion and at the same time prevent any unsafe situation is to install an Isolation Transformer to connect to the shore-side supply.
The Isolation Transformer eliminates any electrical continuity between shore power and the boat. The shore power is fed to the primary side of the transformer and the ship is connected to the secondary. The Isolation Transformer completely isolates the boat from the shore ground. By connecting all metal parts to the neutral output on the secondary side of the transformer, a GFCI will trip or a fuse will blow in case of a short circuit.
Soft startis a standard feature of a Victron Energy isolation transformer. It will prevent the shore power fuse from blowing due to the inrush current of the transformer, which would otherwise occur
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
The Victron Energy ITR040202041 is a 2000W isolation transformer designed for safe and reliable connection to shore power on boats and marine vessels. This transformer effectively eliminates electrical continuity between the shore power supply and the boat, providing essential safety and protection against galvanic corrosion. By isolating the boat's electrical system, it prevents corrosion of metal parts such as shafts and propellers, which are vulnerable when connected directly to shore power. The transformer enhances safety by ensuring that GFCIs and fuses operate correctly in case of short circuits or current leaks, which is crucial for maintaining a secure onboard environment. This feature reduces the risk of galvanic corrosion, extends the lifespan of metal components, and safeguards overall vessel integrity.
The Victron Energy isolation transformer includes a soft start feature, which manages inrush current during startup, preventing blowouts of shore power fuses and ensuring smooth operation. Its construction is robust, suitable for marine environments, and designed to withstand the demands of onboard use. The transformer's primary side connects to the shore power source, while the secondary side connects to the vessel, effectively providing galvanic isolation. All metal parts on the boat, when connected to the secondary side of the transformer, are protected from unwanted electrical interactions, greatly reducing corrosion risks. This setup ensures compliance with safety standards and promotes long-term durability of your vessel’s electrical system.
For additional peace of mind, the Victron Energy isolation transformer is accompanied by a comprehensive owners manual available online. It is important to note that this product may contain chemicals classified as hazardous in California, and proper handling is advised. Designed to support vessels that require reliable shore power connections, this transformer is an essential component for marine electrical safety and corrosion prevention. Whether for new installations or upgrades, it offers a dependable solution for maintaining the integrity of your boat’s electrical system while ensuring compliance with safety standards and enhancing operational safety at sea.
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