The power contactors of some 3-pole electromagnetic motor-starters are fitted with both a set of NO and a set of NC ___ contacts, which are both activated (___(___ and ___, ___, respectively) when the power contacts are closed

Electrical Engineering MCQ
1

The power contactors of some 3-pole electromagnetic motor-starters are fitted with both a set of NO and a set of NC ________________________________ contacts, which are both activated (____________ - _( - ___________ and ____________ - _, - ___________, respectively) when the power contacts are closed.

A) digital; held-closed and held-open
B) auxiliary; held-open and held-closed
C) auxiliary; held-closed and held-open
D) none of the answers

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Answer:C

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