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Joined: Mar 2004
Posts: 947
T
twh Offline
Member
Originally Posted by mikesh
No you don't have to add an overload. Sorry code book is not handy but section 28 does mention thermally protected motors.

Yes, in regards to overheating, which is not required on motors that don't need overload protection. (28-314 / 28-318 / 28-302) Am I missing something?

Joined: Dec 2007
Posts: 35
H
Member
thermistors are part of the windings they are meant only to shut down the motor so that it doesnt overheat and burn

Joined: Apr 2003
Posts: 13
T
Junior Member
Originally Posted by twh
I think the confusion is about a $50 motor protected by $150 of overload devices.


Unless the Electrical Engineer on the jobs askes for it and, of course, you haven't put that into your estimate! Heck he'll probably ask for a NEMA 4 enclosure, hand/off/auto, push button off/on, and a min. of 1 1/4" EMT conduit feeding it! (crazy yes, you never know with EE)

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