How do I choose a galvanic isolator?

If you’re still in any doubt, the way to be 100% sure is to simply measure the connectors. The smaller connectors are 16A, the larger 32A. Easy! The connectors on your isolator absolutely MUST correspond with those on your boat, or they won’t fit.

Do I need a galvanic isolator?

If your boat is plugged into a dock regularly, you need a galvanic isolator (or an isolation transformer). If you have an older boat with an isolator installed, you should have a marine electrician test it to ensure that it is functioning properly and that it meets current standards that apply.

What is a galvanic isolator used for?

The function of the Galvanic Isolator is to provide AC continuity of the grounding conductor (required for safety in the event of an AC fault) and to block the flow of corrosion-causing galvanic current.

Is a galvanic isolator the same as an isolation transformer?

An ISOLATING TRANSFORMER is completely different although the effective galvanic protection is the same. In this device there is never any continuous earth wire connection.

Can a galvanic isolator fail?

There are two ways for a galvanic isolator to fail Either the diodes are shorted, or they are blown open. You can test them with a digital volt meter that can read positive and negative voltages. At any time, with the voltmeter on the DC range, put it across the shore power side to the boat side of the isolator.

Is barrier a galvanic isolator?

The two types of barrier perform this task in different ways: Zener barriers divert excess energy to earth through the fuse and Zener diodes, while Galvanic isolators provide isolation between the circuits in the hazardous area and those in the safe area, using relays, transformers and optoisolators.

What is the difference between Zener barrier and galvanic isolators?

What is an ATEX barrier?

ATEX rated Galvanic Isolation barriers, are intrinsically safe devices and use galvanic isolation to protect electrical signals in potentially flammable and hazardous areas. Preventing fire and explosions is a top priority as no business wants to be responsible for accidents and injury to personnel and the public.