Solenoid from a car door, any car door: are they legal in 2016?

[GeeTwo]

Originally Posted by Richard Wallace

..Conductors heat up while they are dissipating power, and their resistivity increases as they get warmer. ..

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.