The 2001RP-5007 is a 2000 VA programmable, single-phase AC source. limited to a 400Hz outputfor aerospace use. It is a small, lightweight source of AC power for applications that require a 115Vac output at 400Hz, at power levels up to 2000 VA. 187 - 253 V, 47 - 440 Hz input. Dual LCD readouts for programmed settings of voltage, current limit and frequency. Over current, over temperature, and over voltage protection. This unit is in excellent condition and gauranteed to operate as the manufacturer has specified with the -5007 option.