IMost motors run about 60 deg above ambient. Depending upon ambient this may be hotter than touch.
Kevin Pemberton
On 03/21/2011 05:55 PM, James Lambden wrote:
Tom,
Mars motors maintains that the varnish on the windings is capable of 150 degrees.
The windings will be far hotter than the case temperature.
A good rule of thumb is that if you can't hold your hand on it, it is getting too hot.
Adding cooling increases the efficiency of the system so is desirable in any event.
Adding a circulation fan to the engine compartment and introducing new air is the easiest way to add cooling.
James
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