Over/under voltage and phase rotation sensor; input voltage will be 440 volts rms; 60 hz, 3 phase delta; input voltage phase rotation will be ab, bc, ca; operating current shall not exceed 100 milliamperes max; unit shall provide an output voltage of 120 vdc for 0.070 seconds; unit shall have a calculated mean time between failures of 20000 hrs min; 9.197 in. Max lg; 6.560 1n. Max w, 4.903 in. Max h