Wrenches,

In order to be code-compliant, what is needed between the solar array, or combiner box, and the inverter in a battery-less system?  Does one need overcurrent protection in the form of a fuse or appropriately sized circuit breaker?  Or is an unfused disconnect acceptable?  The Sunny Boy folks specify an unfused Sq. D HU361RB to act as the array disconnect before going into the inverter. I've done this with no problem from the local AHJ but am now wondering whether an fused disconnect is Section 690 acceptable.  Any observations?

marco
proVision technologies
Hilo-town, Hawai'i

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