What must the current rating of the galvanic isolator be, in relation to the disconnect circuit breaker?

A galvanic isolator is an important component in marine electrical systems, especially when it comes to protecting against galvanic corrosion and ensuring safety. The current rating of the galvanic isolator should be equal to the current rating of the disconnect circuit breaker. This specification is crucial to ensure that the isolator can handle the maximum current that could pass through the circuit without overheating or failing, thereby maintaining protection for the components it serves.

When the current rating is equal, it ensures that the galvanic isolator can effectively manage the power transmission while preventing issues that could arise if the isolator were to have a lower rating. If the isolator's rating was less than the circuit breaker's, it could lead to situations where the isolator might not carry the required load, resulting in potential failure, overheating, or damage during peak currents, which could compromise the system's safety and integrity.

Therefore, maintaining an equal rating allows the galvanic isolator to function efficiently within the system without risk of failure under normal operating conditions.