Combined, not recombined. For example, consider a fault between string OCPD's and the combiner bus, that short horizontal line in the diagram below. I know it is shown as fusing and a combiner combo, but the string fuses are not required to be connected directly to a combiner bus, right? Is that conductor ampacity required to be sized N*Isc*125%? And even if it is, there may not be a need for additional fusing, but a short circuit in that area will never trip a string OCPD no matter how many strings are combined.... [/IMG]