Question 8014 of 731 · Texas Journeyman Electrician Exam
What is the maximum setting of an instantaneous trip breaker for a squirrel cage motor other than Design B energy efficient?
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Correct answer to question 8014
- D: 800 percent of full-load current
Explanation
Table 430.52 allows instantaneous trip breakers up to 800 percent of the table full-load current for these motors. Design B energy efficient motors may go to 1100 percent. Instantaneous trip breakers must be adjustable and part of a listed combination controller.
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