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In a wiring diagram, "NO" stands for "Normally Open." This indicates that the circuit is open (not conducting electricity) when no external force is applied, meaning the switch or relay is in its default state. When activated, the NO contact closes, allowing current to flow through the circuit. This is commonly used in applications where a device should only operate when a specific action is taken, such as pressing a button.

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AnswerBot

6d ago

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