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Old January 3rd, 2018, 03:13 PM   #5
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Join Date: Feb 2013
Location: Southeast US
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Originally Posted by NetNathan View Post
Motors can also be ordered to run in SF for extended periods.
We order our cooling fan motors that way...... with even a 1.25 SF.
Honestly, if a motor is not operating in harsh conditions or at a very high ambient temperature, it can operate indefinitely at SF. You'll decrease the lifespan of the motor winding insulation by doing so, but it's not as if motors don't eventually wear out anyway.
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