For sale is an Eaton Series NFX9000, Catalog No.NFXF25A0-1 Variable Frequency AC Drive Module. 100-120VAC, 50-60Hz, Single phase AC Input at 6.0 amps. 0-240VAC, 0.1-400Hz, Single Phase or 3-phase AC Output. 1/4 HP Motor rating. From the OEM literature: "V/Hz Control; 1 Analog Input; 4 Programmable, Intelligent Digital Inputs; 1 Programmable Relay; Out-of-the-Box Operation; Single Phase in 3-Phase Out Capability; Standard I/O Includes an Integrated RS485/ Modbus Port; Built-in Overload Protection (OC, OV, OL, OT) & Built in EMI Filter; Undervoltage Carryover Limit: 0.3 to 25 Seconds; Displacement Power Factor: Better than 0.95; Efficiency: Typically Greater Than 95%; Microprocessor: 32-Bit." NOTE: I removed this power supply from a working, custom machine that was in use at a local manufacturing plant that has been closed-down.