GORDONRAY BH INFRARED RADIANT HEATERS

Speed Control: Vacuum pump motor speed and power supply shall be from a 3/4 HP (208-230/460V) three phase or 1HP (120/230VAC) single phase variable frequency drive. Variable frequency drive power input shall be specified as either 120/230VAC, 1 ph, 60 Hz, 16.6A; or 208-230/460V, 3 ph, 60 Hz, 6.9A. ................
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