- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
I use non fused discos, imo that is a branch circuit.iwire said:
Branch Circuits rating
- Thread starter brother
- Start date
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- Location
- Massachusetts
Dennis Alwon said:
No not the disconnect, the motor OLs are what is protecting the conductors and that would be a final OCPD.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
iwire said:
So there is no branch circuit? Or it is within the unit and thus in our respect it is non existent. Hummmm, interesting.
brother
Senior Member
Dennis Alwon said:
I would have to agree with IWire, the OL are what protect the conductors from overcurrent, so since they are the 'final overcurrent' device, then that would be branch circuit. the breaker can be the short circuit or ground fault protection.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
brother said:I would have to agree with IWire, the OL are what protect the conductors from overcurrent, so since they are the 'final overcurrent' device, then that would be branch circuit. the breaker can be the short circuit or ground fault protection.
Well you can agree with whom you please. I just think that art 440 mentions branch circuit quite a bit in reference to conductor we supply feeding the a/c units or motors. Throw out section iv titled branch circuit conductors because it wouldn't apply. Again I think not.
jameselectric
Senior Member
benaround said:
an OCPD doesnt necessarily have to be a breaker, it can be a fuse or something else.
basically anything that protects from over current. jameselectric said:an OCPD doesnt necessarily have to be a breaker, it can be a fuse or something else.
Are you saying there is no difference between Overcurrent and Overload ?
A branch circuit are the conductors after the final overcurrent device, not
the final overload device, that's the point I'm trying to make.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
benaround said:
Of course, I agree here. The NEC defines both OC and OL. They are different, a ground fault or short circuit is not an overload.
This brings us back to the OP's original question and 210.3. Given 210.3 as the only definition of the rating of a branch circuit I have no choice but to agree.
The rating of the branch cir. I mentioned above is 35 amps with #14 conductors since the OCPD is 35 amps. I just think it is a bit misleading that's all.
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