Marine Electrical Systems USCG Q#303 (Set 11)

Which of the electrical schematic symbols represents a normally open limit switch? Illustration EL-0059

USCG Exam Illustration EL-0059
USCG Examination Diagram: Illustration EL-0059
Official USCG Answer & Rule Citation

Correct Answer: Option C — 12

Symbol 12 depicts a normally open limit switch within motor control schematics, adhering to IEEE 45 standards. It mechanically actuates to close the circuit upon reaching a predetermined travel or position limit.

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