NFPA-13 8.5.10 requires sprinklers in electrical equipment rooms (but all the equipment can be NEMA3, which makes this seem rather pointless), and 21.15.2.1 requires IT areas be valved separately from other areas. I found no other requirements in NFPA 13.

NFPA 76 6.5 requires a means to disconnect power be identified, but not that it be automatic. 6.6.1 requires ventilation be automatically dampered when smoke is detected. (Not upon sprinkler activation.) 10.6 requires that depowering occur only after the investigation determines that depowering will mitigate the event.

Well, THAT surprised me! I didn't find a requirement that says I have to put a shunt trip on a data center, but I *did* find a piece of code that specifically prohibits it!

NFPA 110 & 111 are silent on this matter.