Grounding Lv2424 MppSolar

Hi everybody, recently i bought an Lv2424 the question is that here in Venezuela most house are not grounded, some electricians have told me that the ground its in the transformer area bonded with the neutral (we use splitphase 120-0-120 60hz) i am planning on use the lv2424 with a changeover selector switch, so the main breaker box will not back feed to the grid, with this changeover switch i select my main source of energy one or the other never both at the same time, i was wandering if there would be a problem if i dont provide any wire for the ground terminal on the lv2424 or if i take a copper grounding rod and connect it to the lv2424 ground terminal, the changeover switch its a 3 poles rotary switch so when i when i disconnect it from the main breaker box it cuts all wires, gets completely isolated

Thanks beforehand

I live in the USA where code requires our main panels to have the ground, and everything else to tie to that ground. Setting that aside, the next best option would be to install your own earth ground and use that. I definitely would not just avoid connecting the ground. The whole idea is to give current the safest possible outlet to go in a fault situation, and that is to the earth.

You don't ever need to disconnect the ground. Typically, the hot is cut in shutoff. All breakers in a main circuit breaker box connect the hot/live. The LV2424 only has one live. What if a disconnect partially fails or the hot is shorted through some other route? It is better to always have the ground connected.

If I were not using AC in, I would still connect its ground to the same ground if you are installing your own earth ground, only because I don't know how the inverter handles faults, and I'd like to be sure that if it relied on it for grounding, it is there. Normally, that is the ground that would effectively tie to the ground in the main breaker box. Since the AC out is going to your loads, it would be the ground that would carry it out to the loads rather than be the primary source in a complete hookup where AC in and out are both used. In theory, it may not matter since both of the grounds are likely tied together inside the unit. But, it also couldn't hurt just in case.