The 'NO' designation on a switch stands for which contact state?

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Study for the Mechatronics End-of-Pathway (EOP) Test. Explore flashcards and multiple-choice questions, each with hints and explanations. Prepare confidently for your exam!

Multiple Choice

The 'NO' designation on a switch stands for which contact state?

Explanation:
NO designations indicate a contact that is normally open. In the switch’s resting state, the path between the common terminal and the normally open contact isn’t connected, so no current flows. When the switch is actuated, those contacts close and the circuit completes, allowing current to flow. This is why the NO label corresponds to “normally open.” It contrasts with normally closed, which is conducting at rest and opens when actuated. The terms “open” or “shorted” aren’t used as the designation for the contact type in this context.

NO designations indicate a contact that is normally open. In the switch’s resting state, the path between the common terminal and the normally open contact isn’t connected, so no current flows. When the switch is actuated, those contacts close and the circuit completes, allowing current to flow. This is why the NO label corresponds to “normally open.” It contrasts with normally closed, which is conducting at rest and opens when actuated. The terms “open” or “shorted” aren’t used as the designation for the contact type in this context.

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