Space Heaters on very small motors?

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Isaiah

Senior Member
Location
Baton Rouge
Occupation
Electrical Inspector
The engineering design package is showing motor space heaters for 460V motors of 1HP thru 100HP.
I’ve usually seen space heaters starting around 50HP. I think it’s excessive to have a 1HP motor with a space heater but I have nothing to really base it on other than past projects. Is condensate really an issue for small motors? Are there any specific guidelines on Horsepower etc?


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