Which statement is true about normally open contacts?

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Prepare for the NCCER Electrical Level 2 Control Systems and Fundamental Concepts exam. Utilize flashcards and multiple choice questions with hints and explanations. Ensure success on your exam!

Multiple Choice

Which statement is true about normally open contacts?

Explanation:
Normally open contacts have no conductivity when the control coil is not energized; energizing the coil creates a magnetic pull that closes the contact, allowing current to flow. So they are open in the de-energized state. In other words, their resting state is open, and energizing the coil closes the contact to complete the circuit.

Normally open contacts have no conductivity when the control coil is not energized; energizing the coil creates a magnetic pull that closes the contact, allowing current to flow. So they are open in the de-energized state. In other words, their resting state is open, and energizing the coil closes the contact to complete the circuit.

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