breaker as motor overload protection

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NoDakBrrr

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I am hooking up a motor for a car hoist in a shop. The motor is not thermally protected. Do I need overload protection? Motor is 2 HP 208 V single phase. Another electrician says I need overload protection because of the motor size. When I read the code book it seems like I can go by article 430.33 and get by with the branch circuit short circuit and ground fault protective device for the overload protection for an intermittent use motor. Am I missing something or am I reading it correctly?

Thanks Kelly
 

Jraef

Moderator, OTD
Staff member
Location
San Francisco Bay Area, CA, USA
Occupation
Electrical Engineer
Any motor application shall be considered to be for
continuous duty unless the nature of the apparatus it drives
is such that the motor cannot operate continuously with
load under any condition of use.
This is the part that an inspector will judge it on, but remember, he (or she) is the final authority.

I would look at it this way; how much does a little manual motor starter cost to put in the circuit? $100? Compare that to how much it will cost if you get red tagged, can't operate and have to call the electrician back to put it in later anyway if the AHJ says so?

I'd pay the $100 up front. It's like insurance, you pay as a hedge against what it MIGHT cost.
 
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