Maximum air pressure for this pump is 15 psi at 12 cfm output, 15 cfm output at 4 psi. The electric motor is 1 1/2 HP, TEFC, 115/208-230 VAC, 15.2/8.2 amps, 60 Hz, 1 phase, thermally protected, CSA approved. Other features include an optional explosion-proof electric motor on model BAC-17EXP 230/460 (3 phase), an explosion -proof on/off switch that can be ordered separately, 0.5- 0.7 micron inlet and compressor filters ,and a 0-30 psi pressure gauge.