Quote:
Originally Posted by Richard Wallace
..Conductors heat up while they are dissipating power, and their resistivity increases as they get warmer. ..
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Agreed, and further, because the peak power output is usually around half speed, where the back-EMF is half the input voltage, the continuous power draw is even less. My point was that if the resistance was 14.4 ohms or higher, the device could not dissipate/convert a total of more than 10W. The actual resistance of a 10W motor could be much lower.
For example, the static resistance of a CIM is around 0.09 ohm, which tells you that its maximum power is no more than 144/0.09 = 1600W. The rating is about 337W.