When are Form B contacts open?

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Multiple Choice

When are Form B contacts open?

Explanation:
Form B contacts are normally closed, meaning they conduct when there is no energizing force. When you apply energizing force to the coil, these contacts open. So they are open during energization and closed when the energizing force is not present. This is why a Form B contact behaves as a normally closed contact that opens when energized.

Form B contacts are normally closed, meaning they conduct when there is no energizing force. When you apply energizing force to the coil, these contacts open. So they are open during energization and closed when the energizing force is not present. This is why a Form B contact behaves as a normally closed contact that opens when energized.

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