So if an inverter/battery/MPPT controller (an All-In-One unit or everything housed in a cabinet) were plugged into a sub-DB (which only contained a changeover switch and two circuit breakers for feed to and from the external unit) using a single or three-phase plug such as that below, and in all other respects the wiring, switches and protection complied with SANS 10142, would this be exempt from requiring a CoC?
The sub-DB addition would need a CoC, but would that be sufficient? In reality it would then be just a bigger UPS with solar panels.
Would it be different depending on whether the unit fed back into the grid or NOT?
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