What is the MINIMUM ampacity for a feeder serving two motors at 15hp (21A each), one motor at 25hp (34A), and one motor at 40hp (52A)?
- 128A
- 141A
- 148A
- 160A

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What is the MINIMUM ampacity for a feeder serving two motors at 15hp (21A each), one motor at 25hp (34A), and one motor at 40hp (52A)? - 128A - 141A - 148A - 160A

SnapAndSolve AI · Accepted Answer

Answer: 160AExplanation: To calculate the minimum ampacity, you need to consider the largest motor at 125% of its full-load current and add the full-load currents of the other motors. The largest motor is 40hp at 52A. So, 125% of 52A is 65A. Add the currents of the other motors: 2 motors at 21A each (42A total) and 1 motor at 34A. Thus, the total is 65A + 42A + 34A = 141A. The closest higher standard ampacity is 160A.

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What is the MINIMUM ampacity for a feeder serving two motors at 15hp (21A each), one motor at 25hp (34A),...

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