My facility is an older style auditorium and i am having trouble determining the maximum load that i can pull. The reason is that though the facility is wired in three phase, the dimmers are only wired in single phase. Specifically, behind the dimmers, i can see phase one through three, and a ground. Each dimmer uses one phase. The dimmers are each 50 amp, and i have no trouble with their loads. However, the system as a whole has a label stating a 900 amp limit. For previous productions i have just assumed this to mean 900 amps at 120 volts, thus around 100,000 (900 amp * 115 volts) watt limit for productions. However, three phase voltage is 208. For my upcoming production, i would like to use significantly more power. Do i actually have 185,000 watts (208 * 900) or am i limited to 100,000 watts are previously calculated? And if i haven't given enough information, what other information is needed/what would i need to check?