Might I suggest a "Shunt Trip Circuit breaker". I have used these in cases where power to an entire Mainframe Computer Room, was cut. This was linked to the fire alarm system, and killed the system outlets at the moment the Halon system siren sounded. It will remove your AC power and require a manual reset. I have seen these in 120v single phase, 208 3 phase, and up.
$.02 Ed N3SDO
