NEC 240.6 lists the smallest "fuse or inverse time breaker" as 15A. It then lists some smaller standard "fuse" sizes. Does this mean that a heating load does not have less than a 15A circuit breaker as it branch OCPD?
For example, I have a heater that has a 5.7A load. I can do the 1.25X's rule, and get a 7.125. Can I round this up to 15A, as long as I am using 14AWG? Is the branch OCPD on resistive heating loads meant to only be short circuit protection, and not overload protection for the heater?
For example, I have a heater that has a 5.7A load. I can do the 1.25X's rule, and get a 7.125. Can I round this up to 15A, as long as I am using 14AWG? Is the branch OCPD on resistive heating loads meant to only be short circuit protection, and not overload protection for the heater?