I have a non-continuous load rated at 165A-3ph. I would like to put a contactor in-line to switch it and the existing OCPD is a 200A breaker. The contactor I'm looking at is rated for 185A. Since the next common OCPD device is the 200A breaker, I think I'm fine to do this. 240.3 (B) talks about conductors but doesn't really mention devices. Is this okay or do I need to use a 200A rated contactor? I don't believe so as I'm rating my contactor for the load then.
OCPD rating for non-continuous load
- Thread starter dabatman
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LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
I believe you're okay with the rating of the contactor compared to the load.
Be sure to use the correct load type, as in resistive or inductive.
Be sure to use the correct load type, as in resistive or inductive.
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