Unfortunately, they dont seem to last. I have noticed that especially the APC SURT10000s (1096g3) seem to fail. When we get in UPS units from liquidators, surplusers and off lease companies, I can almost predict how many will be bad given the models. For us most units come in at under 10% complete failure. (some like the 2200va 3u [203] never seem to fail) But looking at our graveyard of UPSes units, I see many 10kva units. Checking my purchase logs, it has been almost 40% come in DOA.
Why? My guess is like the poor showing of the Dell 3000va 2Us, APC has forced such a large power handling system into too small of a housing. So in the real world, when people don't properly cool the unit and overload it, the heat slowly kills it.
My advice is to buy two 5000va (593g3) units. Its always cheaper and easier to wire. Only buy those 10kva units if that one piece of equipment needs 30amps of power and go with the Tripplite (to1096) since they have an external PDU that keeps the wiring outside the main unit. Never just for a server array.
