As shown in figures "A" and "B" of the...

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Question 1 of 205eccefa4bacbc34ba4d48378

As shown in figures "A" and "B" of the illustration, what is the functional purpose of the normally open auxiliary contacts of the main contactor? See illustration EL-0043.

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Question 1 of 20

5eccefa4bacbc34ba4d48378

As shown in figures "A" and "B" of the illustration, what is the functional purpose of the normally open auxiliary contacts of the main contactor? See illustration EL-0043.

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🔍 Key Concepts

• Auxiliary contacts on a main contactor and how they are usually wired in motor control circuits • Difference between low-voltage protection and low-voltage release in control circuits • How the start/stop/pressure switch circuit in Figure B is arranged around the contactor coil and its auxiliary contacts

💭 Think About

• Trace the control circuit from the power source to the contactor coil and identify exactly where the normally open auxiliary contacts are located and what they bridge or interrupt • Ask yourself what happens to the motor if power is lost and then restored: will it automatically restart, or will it stay off until a control action is taken? • Compare that behavior with the definitions of low-voltage protection vs low-voltage release and see which one matches this circuit

✅ Before You Answer

• Verify whether the auxiliary contacts are wired in parallel with the start (or auto) control device or in series with another control device like the pressure switch • Confirm whether the circuit uses the auxiliary contact as a holding (seal-in) contact to keep the coil energized after the initial command • Check if any of the options would require the auxiliary contacts to carry motor current (power circuit) instead of just control circuit current, and rule out those that don’t match the drawing

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Question 1 of 205eccefa4bacbc34ba4d48378

As shown in figures "A" and "B" of the illustration, what is the functional purpose of the normally open auxiliary contacts of the main contactor? See illustration EL-0043.

Back

Question 1 of 20

5eccefa4bacbc34ba4d48378

As shown in figures "A" and "B" of the illustration, what is the functional purpose of the normally open auxiliary contacts of the main contactor? See illustration EL-0043.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

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