Drive Power Supply: Single-phase, 40-70 Hertz, phase rotation insensitive, 3-wire supply (hot, neutral, ground) no adjustment necessary for frequency change. Power Supply Voltage range: 110 - 400 volts AC nominal, ±10%, Power Supply Current: (1.4 × calibrated DC armature current) amps AC rms, 37 amps AC rms, maximum

Drive Control Supply: Single-phase, 40-70 Hertz, polarity insensitive no adjustment necessary for frequency change. Control Supply Voltage range: 110 - 220 VAC to control transformer primary, ±10%, no special tapping required. Primary Protection fuse: 3 amps @ 250 volts (FS1)