The Victron Galvanic Isolator VDI-32A protects boats and vessels connected to shore power from galvanic corrosion. It breaks the DC path between shore earth and vessel earth while keeping the AC protective earth connection intact. It suits marine installers and boat owners on a 32A shore power connection.

Key features

• Rated for shore power connections up to 32A
• Blocks DC galvanic current between shore earth and vessel earth, reducing corrosion of underwater metal fittings
• Maintains the AC protective earth connection required for electrical safety
• Compact enclosure weighing 2.3kg, suited to tight cable runs near the shore power inlet
• No moving parts and no external power supply needed

How it works

Galvanic corrosion happens when small DC voltage differences exist between a marina's earth system and a moored vessel's earth. Current flows through the water and through underwater metal parts such as propellers, shafts and fittings, corroding them over time. A galvanic isolator interrupts this DC path while leaving the AC earth connection working, which the shore power system needs to operate safely.

The VDI-32A fits into the earth conductor of the shore power cable, between the inlet and the vessel's AC distribution board. It is a passive unit with nothing to monitor once wired in. Match the isolator rating to the vessel's shore power current, which here is up to 32A.

Applications

• Marina berths and shore power connections on sailing and motor vessels
• Retrofitting shore power installations where corrosion of underwater fittings has been seen
• New build marine electrical installations with a 32A shore power inlet

Installation notes

Fitting must be carried out by a qualified marine electrician, in the AC earth conductor. Incorrect installation can compromise the protective earth and create a safety hazard. Confirm the vessel's shore power draw does not exceed 32A before fitting.

What's in the box

• 1 x Victron Galvanic Isolator VDI-32A