Galvanic Isolator - ESSENTIAL Equipment for Boats

Install our Galvanic Isolator yourself or Money Back!

When your boat is moored and connected to an electric supply via a hookup cable, it’s crucial to protect against Galvanic Currents. But what exactly ARE Galvanic Currents??

Galvanic Currents are tiny electrical charges that flow along the earth conductor in your hookup cable. This isn’t due to an electrical fault — it happens because the metal parts of your boat react with other boats, pontoons, and even the earth, essentially forming a battery. As this current flows, it takes with it molecules from your hull, outboard motor, or any submerged metalwork.

Over time, the damage can be severe, potentially corroding outboard casings entirely or creating holes in steel hulls. At the very least, your boats anodes will have their lives greatly shortened, leading to frequent pull-outs for maintenance.

Our Galvanic Isolator stops Galvanic Currents, safeguarding your boat from this type of corrosion. Installation is quick and doesn’t require any electrical expertise—just plug the Galvanic Isolator into either end of your electric hookup cable. The model shown is available for under £100 (as of Nov 2024)

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