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Why is the earth leakage protection for NW limited at 3200A ?

The use of micrologic 7.0 for earth leakage protection is limited at 3200A, due to a technology limitation of the sensor.

The limitation comes from the design of the rectangular sensor which uses coils of compensation and at 4000A the overheating effect on these coils can burn them.

Thats why the rating is limited at 3200A for earth leakage.

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